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Page 1: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NENP 12.4 EVALUATION

FOR

NEI PEEBLES ELECTRIC PRODUCTS

REVISION 2

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

9206010234 920522PDR ADQCK 050002756 PDR

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APPROVAL SIGNATURES

Prepared by:Ed Walters (RPE Mechanical)

Date: <->> f2

e. r~Anil Kar (Electrical)

Lester Lew (Electrical)

Date:

Date: ~/

Gagendra Bhatt (Electrical)Date: S- 22-gZ

Concurrence:sam arr nical)

Date: 5~&-/~

Ed ahler (RPE Coordinator)Date: K2

Approval:Garr T' (NECSEZ)

Fet e an (NECS )

Date:

Mike Tres Projec Engineer)Date:

NEI PEEBLES NEMP 12e4 EVALUATION REVISION 2

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EXECUTIVE SUMMARY

The following excerpt from NRC Vendor Inspection Report99901065/86-01 gives a synopsis of the history of the GeneratorSupplier:"The electrical generators for the emergency diesel enginesinstalled at the Diablo Canyon Nuclear Power Plant were originallydesigned and manufactured by Electr'ical Products Incorporated (EPI)located in Cleveland, Ohio. Northern Engineering Industries ParsonPeebles (NEI Parson Peebles) of Great Britain bought EPI in 1979and renamed it Parson Peebles EPI. The manufacturing operations ofparson peebles EpI ceased in the fall of 1984. Peebles ElectricalMachines, a subsidiary of NEI Parson Peebles is currentlymanufacturing a spare electrical generator for the Diablo CanyonNuclear Power Plant. Parson Peebles EPI is furnishing the designdrawings and all the components available from their storage toPeebles Electrical Machines for the manufacture of an identicalspare electrical generator."*** For the purposes of this evaluation, NEI Peebles

Electric Products Inc. in CLEVELAND shall bedesignated as "PEP", and Peebles Electric Machinesin EDINBURGH Scotland shall be, designated as "PEM". ***

PEP was placed on PG&E's Qualified Suppliers List (QSL) based onPG&E Audit 89295S. Because of issues identified during follow-upAudit 90197S of this supplier, PG&E Quality Assurance requested aTechnical Evaluation of the Quality Program in accordance withProcedure NEMP 12.4 (See Section VIII of this Evaluation for asummary of the Quality Assurance and Engineering Documentsassociated with the purchase and qualification of the SixthGenerator from PEP).

Revision 0 of this Evaluation was issued February 11, 1991. The12.4 evaluation addresses all Audit Findings for (PEP), includingthe findings identified during PG&E's participation in the PEPaudit of their subsupplier PEM. In addition to the technicalevaluation of the audit findings, the 12.4 evaluation implementedthe following compensatory actions: hardness test of the generatorshaft (witnessed at PEM); tensile testing of the adhesive at PG&E'sTechnical & Ecological Services; additional design change andequivalency reviews to be performed by PEP. For each issueaddressed, this evaluation also includes a statement of impactregarding the spare generator in stock at Diablo Canyon. Therecommendation of Revision 0 of this document recommended that PEPremain on the QSL for the one time purchase of the Sixth Generator.

Revision 1 of this document was issued October 31, 1991. Thepurpose of this revision was to incorporate: recently Identified10 CFR 21 Reports for Peebles; results of PG&E QA Audit 90197SFollow-Up; results of PG&E Independent Testing of Adhesive; results

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 3

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of Final Design Change and Procedure Equivalency Review performedby NEI Peebles. Again, the recommendation was that PEP remain onthe QSL for the one time purchase of the Sixth Generator.

The purpose of the final revision of this document (Revision 2) isto incorporate the results of two NRC Inspections, one of PEP andone of PEM. The results of these inspections were published afterthe issue of Revision 1 of the 12.4 Evaluation.

Following the issue of these reports by the NRC, there has beenextensive communication between the NRC's Vendor Branch and PGGEregarding the qualification of the Sixth Generator purchased fromPEP. One of the resolutions to the open items identified is theinclusion of Endurance Testing of the Engine-Generator Assembly atDiablo Canyon.

With the incorporation of the Endurance testing, the compensatoryactions for the Sixth Generator now include verification to beperformed at Diablo Canyon. As a result, a Replacement PartEvaluation in accordance with PG&E procedure NECS E3.12 isrequired. Therefore, the qualification of the generator purchasedby order ZS-1539-AB-9 now includes the NEMP 12.4 Evaluation andReplacement Part Evaluation (RPE) E-7505. In addition, forclarification of the documentation, all compensatory actionspreviously performed by the supplier (i.e. design review, hardnesstest) have been incorporated into this RPE.

Qualification of the spare generator will be based on thisevaluation in conjunction with an RPE addressing specificverification activities for the spare. The verification activitiesfor the spare will be the same as those for the Sixth Generatorwith the exception of the Pre-Operational Endurance Testing. Thespare generator qualification will be based on the result of theendurance test of the Sixth generator and subsequent inspections ofthe spare.

To summarize Revision 2 of the Peebles NEMP 12.4 Evaluationdocuments the technical evaluation of all audit findings and issuesraised by PG&E and the NRC, including a statement regarding theacceptability of the spare generator procured in 1986. RPE E-7505documents all compensatory actions taken by PG&E to qualify theSixth Generator.

NOTE: For Section I of this Evaluation, Product Performance,revision bars have been included in the margin. These bars are notincluded for the remaining sections, since they are completerewrites.NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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ATTACHMENTS

ATTACHMENT A

PRODUCT PERFORMANCE DOCUMENTATION (103 PAGES)

ATTACHMENT B

ENGINEERING EVALUATION OF STUD/ROD WELDING (23 PAGES)

ATTACHMENT C

ELECTRICAL ENGINEERING MEMO, GENERATOR TECHNICAL ISSUES (5PAGES)

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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REFERENCES

1. NEMP 12.4, "Evaluation of Supplier Quality Programs"

2.

3.

4 ~

5.

6.

7 ~

EMM DC2-3322-BRH-E, Purchase Order ZS-1539-AB-9

Audit Report 90197S (CHRON 157900), PGSE Audit of PEP

Audit Report 9003 (CHRON 160680), PEP Audit of PEM

PG&E Procedure NECS E3.12. "Spare and Replacement PartsEvaluation (RPE)"

Action Request A0213896, Tracking for issue of DCN toreweld stator frame cover and modify Jacking Screw Holeson spare generator.

Action Request A0201157: Findings Audit 90197S, evaluateParts, determine other affected purchase orders; Hold onspare generator; Issue Peebles NEMP 12.4 EvaluationRevision l.

8. PG6E Restricted Equipment List9. Audit 90197S Follow-Up Report, 5/13/91 (CHRON 170329)

10. PG&E Letter to PEP, "Closeout of AFR's",Requested Addition Equivalency Reviews (CHRON 170457)

ll. Audit 90197S Follow-Up Report, 9/5/91 (CHRON 176519)

12. QA Specifications SP-D-Peebles, Revisions 3, 4, 5

13. PGSE Letter to PEP, "Corrective Actions forInitial Audit", (CHRON 159914)

14. NECS Letter to QA, "Criticality of Stator Housing",(CHRON 161307)

15. EQS Source Inspection Plan for 1986 Purchase of SpareGenerator, Plan DC-189, Reel 3436, Frame 2203

16. Preventive Maintenance Work Orders R0064768, R0073657.

17. PG&E PIMS Action Requests: A0208696, Stud/Rod Welding onspare generator; A0211541 Findings for Audit 9003,determine actions to maintain qualification; A0214809,Addition of Terminal Box Supports for Spare Generator.

18. NRC Inspection Report 99900772/91-01, PEP, Cleveland

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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19. NRC Inspection Report 99901065/91-01, PEM, EdinburghScotland

20. NRC Inspection Reports 50-275/92-09 and 50-323/92-09,Notice of Violations regarding Generator Purchase

21. PG&E Letter DCL-92-034, Comments Regarding NRC InspectionReport 99900772/91-01

22. PG&E Letter DCL-92-092, Pre-operational Endurance Testingof the Sixth Emergency Diesel Generator

23. PG&E Letter DCL-92-117, Reply to Notice of Violation inNRC Reports 50-275/92-09 and 50-323/92-09

24. PEP response to NRC Inspection Report 99900772/91-01,PG&E CHRON ¹ 186276

25. PEM response to NRC Inspection Report 99901065/91-01dated 27 April 1992.

26. NRC Licensee Contractor and Vendor Inspection StatusReports 99900772/82-01 (Reel 5014-173), 99901065/86-01(Reel 5108-2284), 99900772/86-01 (Reel 5097-1018)

27. PEP Dedication Packages, PG&E Drawings 6011924-1-1, -2-1,3 li 4 li 5 1 6 1 7 lg 8 li 9 1 10 1 ll 1

28. Letter from PG&E to PEP dated 10-29-90 CHRON 160229,Technical questions to be resolved and PEP Responses

29. Closed Audit Finding Reports 90-067 through 90-072 (Audit90197S) CHRON 161334

30. Replacement Part Evaluation E-7075, Sixth DieselGenerator

31. PEP letter EF-3458 to PG&E dated January 17, 1992, CHRON

¹ 183532.

32. PEP letter EF-3466 to PG&E dated May 20, 1992, PG&E CHRON

¹ 190279.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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INDEX TO EVALUATION

I. PRODUCT PERFORMANCE EVALUATION

II. SUPPLIER QUALIFICATION REVIEW

ENGINEERING EVALUATION OF FINDINGS FOR PEPiREFERENCE PG&E AUDIT 90197S

ENGINEERING EVALUATION OF FINDINGS FOR PEMiREFERENCE PEP AUDIT 9003

III. ENGINEERING EVALUATION OF ADDITIONAL TECHNICAL ISSUESRAISED BY PG6E

IV. ENGINEERING EVALUATIONOF NONCONFORMANCES AND UNRESOLVEDITEM RAISED IN NRC INSPECTION REPORT 99900772/91

01'EP'LEVELAND

V. ENGINEERING EVALUATIONOF NONCONFORMANCES AND UNRESOLVEDITEM RAISED IN NRC INSPECTION REPORT 99901065/91 Olg PEMtSCOTLAND

VI. ENGINEERING EVALUATIONOF GENERIC TECHNICAL ISSUES RAISEDIN INSPECTIONS REPORTS, MEETINGS AND CORRESPONDENCE WITHNRC RELATIVE TO THE SIXTH GENERATOR PURCHASE

VII. ENGINEERING EVALUATION OF HARDWARE SPECIFIC TECHNICALISSUES RAISED IN INSPECTIONS REPORTS, MEETINGS ANDCORRESPONDENCE WITH NRC RELATIVE TO THE SIXTH GENERATORPURCHASE

VIII.SUMMARYOF ENGINEERING AND QUALITY ASSURANCE DOCUMENTS FOR THEQUALIFICATION OF THE SIXTH GENERATOR

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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I. PRODUCT PERFORMANCE EVALUATION

The following items have been reviewed to determine whether theyaffect the quality of the sixth diesel generator or the sparepurchased from PEP (See Attachment A):

743

791131

NPRDS Reports10 CFR 21 Reports and Utility ReportsBulletins, Letters, SER, SOERLER 90-012-01, WPPSSRestricted Equipment ListNRC Vendor Inspection ReportsGovernment Industry Data Exchange Program

Out of the 162 items, twenty required further assessment.It has been determined that none of these have an impact on the newgenerator or the stocked spare.

Based on review of these documents, Engineering concludes thatthere are no related part failures that indicate PEP is notcontrolling the design or quality of parts. The isolated incidentsdo not indicate any programmatic concerns.

Based on QA concerns related to the implementation of SpecificationSP-D-Peebles, we have reviewed the referenced documents andinformation to determine if there are repeated instances ofquestionable product performance.

Per discussions with Mr. Ron Politi of PEP, they have suppliedgenerators to 26 Nuclear Utilities in the past 10 years. He alsostated that there are in excess of 150 PEP electric generators inoperation at this time.

This review included the applicable NPRDS data, 10 CFR 21 Reports,NRC notices and bulletins, License Event Report 90-12-01,Restricted Equipment List, NRC Vendor Inspection Reports, and theGovernment Industry Data Exchange Program summary of failures.

The problems identified along with NECS Engineering's resolutionare summarized below. Note that PG&E's generators are Model 140,Type L-10823.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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Nuclear Plant Reliability Data System

This data base was searched by "Parson Peebles", "NEI Peebles","Electric Products" and "Portec." There were twelve records foundunder Parson Peebles Electric Products Inc, and sixty-two recordsfound under Portec. These records are summarized below:

2 Condensate booster Pump Motor

1 Batteries1 DG Room Exhaust Fan Relay

6 Diesel Engine (overspeed trip, governor, lube oilcooler gasket, turbocharger bearing, immersion heatercontacts)

54 Control CircuitryExcitation Panel/Field Flash (firing module, relay,resistor, diode, contacts, motor operatedpotentiometer, cable, fuses, saturable reactortransformer)Generator Control Panel (diode, silicon controlledrectifier, relay, meter, load sensor module, fuse,fuse holder, speed switch, frequency module,resistor)Voltage Regulator (relay, contacts, board, circuitbreaker, amplifier module, motor operatedpotentiometer, surge suppressor)

Annunciator Panel (diode)

The above listed failures are not applicable to the evaluation ofthe generator. For the Sixth Diesel Installation, the generatorcontrol panel, excitation panel/voltage regulator and associatedcomponents are being purchased and assembled by PG&E, and are notbeing supplied by the generator manufacturer. These components areindividually dedicated and tested in accordance with theReplacement Part Evaluation process (See Reference 5).

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 10

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The remaining 10 records not shown above deal with the actualgenerator, and are evaluated below.

Problem: Gulf States Utilities, River Bend 1Parson Peebles Electric ProductsGenerator Model L-11071

Rotor windings on number 14 pole had separated from the shaft polewasher and bowed out towards the stat'or.

Resolution: The probable cause was determined to be acombination of:

2)3)

Inadequate attention to shelf life and storageconditionsresin application errorscontamination during resin application.

Per discussion with Mr. Ron Politi of PEP, this failure is not aconcern for PGsE, since the generator in question is a differentmodel/size/design than those used at Diablo Canyon. River Bend hasa 450 RPM, 16 pole machine. Also, our machine design has wedges,while this one does not. He added that the adhesive used on thismachine is not used on our new generator, since this product is nolonger available. Mr. Politi also stated that this problem isstill under investigation, but that preliminary indications arethat it was not a manufacturing problem. PEP believes that theassembly was damaged on site prior to installation (dropped).

Additional justification for this view is that the separation onlyoccurred on one out of sixteen poles, which would not be the caseif the resin was installed improperly.

Problem: Pennsylvania Power & Light, Susquehanna 1PortecModel 170

Oil leakage from the air vent part of the, generator bearing hightemperature trip sensor.

Resolution: The cause of the leakage was that the trip sensorhad not been properly reinstalled in its mountinghole after an 18 month diesel overhaul.

This failure is due to improper maintenance, and has no effect onthe spare or new sixth diesel generator.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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Problem: Pennsylvania Power s Light, Susquehanna 1PortecModel 170

The winding resistance check (Megger) as part of the technicalspecification inspection did not meet the acceptance criteria.Resolution: The suspected cause of the insulation breakdown

was wear. Root cause was not clearly identified,since a subsequent megger test met the acceptancecriteria.

This failure has no impact on the spare or new generator. Finaltesting of the new generator assembly will verify the insulationresistance. Also, the spare generator megger checks aresatisfactory (See preventative maintenance work orders, Reference16).

Problem: Pennsylvania Power s Light, Susquehanna 1PortecModel 170

Resolution: The root cause of the megger test failure andpossibly the fire were from grounding of thegenerator. This grounding was probably caused by dirtand moisture accumulation in the generator, which wasin turn due to construction on a new dieseladdition. The arc-over was caused by human errorbecause the slip ring wiring lugs were nottightened.

This failure has no impact on the spare or new generator, since theproblem was caused by improper maintenance/cleanliness by theutility.

The surveillance test failed the megger acceptance criteria on theexciter portion of the generator. After servicing the DG for thisproblem the generator was operated. During this operation, thegenerator had an arc-over which started a fire in the main plantprocess computer.

Problem: System Energy Resources Inc., Grand Gulf 1PortecModel

L-11022'parks

were observed coming from the generator bearing end cap.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 12

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Resolution: Maintenance inspection revealed a low spot in theinsulation under the generator inner race. Thiscondition allowed excessive radial movement ofthe generator shaft which created circulatingcurrents. These currents resulted in the sparksand overheating of the generator.

The function of the bearing insulation is to insulate thecirculating stray currents generated in the rotor shaft byinduction during operation. While the function of the mountingsleeve insulator between the slip ring assembly and the rotor shaftis to insulate the DC excitation circuit from being grounded.

If the bearing insulation fails, high circulating currents willflow to ground through the bearing and the sparks will damage thebearing by pitting. Eventually the bearing will fail and needreplacement. But, if the mounting sleeve insulator for the slipring fails the DC excitation circuit will be grounded.

The insulating material for both bearing insulation and themounting sleeve insulator for the slip ring is the same, Bakelite.

This bearing insulation failure is not a concern for ourgenerators. Based on discussions with PEP in 1986, "...DCPPgenerators were manufactured prior to the model which incorporatedthe glass/resin bearing insulator. Since we are currentlymanufacturing a spare generator for DCPP, we recently investigatedthis exact topic to be certain that a design variation from theexact duplicate, as you ordered, would not be required. Previouslyinstalled DCPP E-P generators, the stocked spare, as well as thesixth generator currently in progress include a bearing supportinsulator and do not use the subject shaft insulator."

The insulator failure is not applicable to PGSE's new or sparegenerator, since they do not use this type of shaft insulator.

Problem: System Energy Resources Inc., Grand Gulf 1PortecModel L-11033

The bolts in the generator termination box cover were stripped outand needed to be replaced.

Resolution: The bolts were stripped due to misalignmentbetween the termination box cover bolt holes andtheir permanent nuts tack welded to the lip ofthe termination box.

This failure has no impact on the spare or new generator, as themisalignment is a maintenance problem, not a manufacturing defect.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 13

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Problem:I

Resolution: This was caused while attempting to lift out thelower bearing half. The jack and the lift plateslipped and crushed the lower part of thegenerator bearing housing and brokeapproximately 7 inches off the housing aroundthe dust seal enclosure.

Southern California Edison, San Onofre 1PortecModel L-11058

Maintenance found the emergency generator lower outboard support(casting) broken at the upper outside where the dust seal sits.

,This failure has no impact on the spare or new generator, since thesupport was broken during maintenance activities.Problem: Tennessee Valley Authority, Sequoyah 1

PortecModel L-10906

During plant shutdown, surveillance indicated diesel generatorbottom outboard brush tension was out of adjustment.

Resolution: Root cause unknown.

The brush tension is a maintenance item. 'he tension will beadjusted during the verification test and thereafter by periodicDiesel Generator Inspection (Electrical 18-month interval) inaccordance with Surveillance Test Procedure STP M-81G.

This failure has no impact on the spare or new generator, since thebrush adjustment indicates improper maintenance not a manufacturingdefect.

Problem: Arizona Public Service Company, Palo Verde 1PortecModel L-11094

Three of the top mounting bolts for the cage of the shroud assemblywere stripped out. The bolts and nuts serve to hold wire meshscreen on the generator end for ventilation.Resolutioni The cause was that the bolts had been over

stressed during tightening.

This failure has no impact on the spare or new generator, since thestripped bolts indicate improper maintenance not a manufacturingdefect.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 14

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Problem: Arizona Public Service Company. Palo Verde 2PortecModel L-11094

During normal preventative maintenance on the diesel generator abroken brush on the top west inner ring was found.

Resolution: Root cause unknown.

This failure has no impact on the spare or new generator. Thebrushes are items subject to normal wear.

10 CFR 21 Reports

~Re ort: Issued by NEI Peebles, Dated November 24, 1986Utility: Arizona Power, Palo Verde Unit 3Customer: Cooper Energy,

The problem identified in this report is that a copper winding ona pole had moved. The equipment was manufactured by ParsonsPeebles Electric Products in 1980. The cause of the defect was asubstandard bond of the polyester resin and the field coilconductor in certain localized areas of the wire wound rotor pole,resulting in the separation of the wire from the coil.This separation could be brought about by: mechanical damage;improper formulation, mix, or cure of resin; or improper resinapplication. In this case, there is no evidence of mechanicaldamage. NEI Peebles performed a review of their records for rotorpoles manufactured using this particular resin mix, and determinedthat this batch only affects the two duplicate diesel generatorssupplied to Palo Verde Unit 3.

NEI Peebles recommended two corrective actions: remove the rotorpoles from both diesel generators and replace them with spares;perform an overspeed testing to determine the adequacy of theinstalled resin on the rotors and rewind the rotor if necessary.

Based on the investigations and testing performed by the supplier,the most probable cause of the resin failure was improperapplication that resulted in a local dilution of the amount ofresin applied to the rotor. These types of defects are detectableafter resin curing by tapping the coils for hollow sounds inaccordance with Peebles routine quality control Procedures.

As described above, the subject rotors were also subjected tooverspeed testing to verify that the rest of the applied resinfunctioned per design. The tests did not identify any otherdefects.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 15

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Based on the evidence and evaluation performed, NEI Peeblesconcluded that the improper resin application was an isolatedincident with no significant generic implications.

Arizona Power also issued a Final Report (DER 86-31) to the NRCdiscussing the defects found in their generators for Unit 3. Twoadditional problems described in the utility report were a secondpole separation which occurred in July of 1987, and pole piecefasteners had low torque values.

The cause of the second pole separation at Palo Verde was amechanical shock to the generator due to an engine rod failure.The following excerpts are taken from the conclusions drawn byArizona Power regarding the failures:"There are approximately 1200 poles in machines presently inservice that have been encapsulated with DlllA resin.Additionally, the same rotor design, type of resin, and pole piecefasteners have been used in over fifty similar machines, some ofwhich have been used in nuclear facilities since 1972. The firstpole deficiency is the only known pole to suffer winding separationduring its infancy. Since the characteristics of this deficiencyare very weak adhesive bonds that fail very early in the life ofthe pole, this is considered to be an isolated case."

"Any rotor assembly subjected to a sudden shock during operationpotentially could have winding separation on its poles."

"The first case of loose fasteners was determined to be the resultof a deviation in the torque values used at the manufacturer'sfacility during fabrication. As mentioned above, these fastenershave been used in over fifty similar machines and none are known tohave been found with loose fasteners. This deviation is consideredto be an isolated event."

"As described above, any rotor assembly subjected to a sudden shockduring operation , potentially could have a pole with loosefasteners."

~Im act: The function of the fasteners discussed above is toconnect the pole pieces to the rotor spider. This generator doesnot use any adhesive or the types of fasteners discussed above tosecure the poles to the rotor. The stampings and laminations arecut to form a dovetail joint. Pole pieces are inserted in the cutdovetail and the wedges are inserted on both sided to fasten thepole piece to the rotor spider. Based on the investigation andadditional testing performed by PEP, the pole separation and loosepole fasteners identified at Palo Verde have no impact on PG&E'snew or spare generator.

NEI PEEBLES NEMP 12e4 EVALUATION REVISION 2 16

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~Re ort: Issued by Gulf States Utility, Dated November 16, 1987

On the standby generator at River Bend Station, the rotor windingson pole number 14 were found separated from the shaft pole washerand bowed toward the stator. The individual wires had delaminatedand overlapped. This condition was found by visual inspection.

Per discussion with Mr. Ron Politi of NEI Peebles, although thisproblem is still under investigation, it has no impact on PGSE'sequipment.

~lm act: The delamination identified at Gulf States Utilities hasno impact on PGaE's spare or sixth generator. First, the generatordesign that experienced the problem is different, since it does notuse pole wedges in the assembly. Second, the most probable causeis the adhesive used in the rotor assembly. The Gulf Statesmachine used a polyester type adhesive, while PG6E's new and sparegenerators utilized an epoxy resin.

~Re ort: Issued by NEI Peebles, Dated January 4, 1991Utility: Georgia Power Vogtle PlantCustomer: Cooper Enterprise Engine Division

The problem identified in this report was a failed weld on one airlouver. The equipment was manufactured by Parsons Peebles ElectricProducts in 1981.

During the removal of the coil guard cover for cleaning purposes,an air baffle louver broke loose. The louver had been tack weldedto the cover in three places, and two of these welds werecompletely rusted through. Inspection of the remaining louversshowed that ten of the twelve had been full length welded to thecover. The eleventh louver was also tack welded in three places,and these welds were intact.NEI Peebles stated that the physical integrity of the louver isimportant because if all welds failed and the machine wasoperating, the louver could hit the rotating fan and projectilescreated may damage the rotor or coil ends.

The supplier feels that this was not a design defect, but anisolated incident. They recommended that the utility incorporateinspection of these. louvers- as a regular maintenance activity.~Zm act: This failure has no impact on pGSE's sixth or sparegenerator, since our design does not utilize this type of drip-proof cover.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 17

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NRC Information Notices, Bulletins, LettersINPO Significant Event Reports (SER), Significant

Operating Experience Reports (SOER)

(See Attachment A for documents reviewed.) The three documentssummarized below were determined to have a potential impact onPG&E's Sixth Generator and the stocked spare manufactured by PEP.

1

Problem: Safety Review Event Follower 80-028 — Notepad5-14-80, LER 335/80-13

I

The generator failed to accept full load during a test.Resolution: The cause was incorrect exciter leads to the

generator field. The leads were undersized.

The exciter leads connect the exciter to the generator fieldterminals. These leads are based on the exciter load, its shortcircuit currents, and derated for the environment.

Based on the successful performance of the five generatorsinstalled at Diablo Canyon, the exciter leads to the generatorfield are adequate for the new generator being purchased and thestocked spare.

Problem: Safety Review Event Follower 85-136 — IN 85-68

The insulation on the stator windings had been rubbed and abradedto the point where one stator winding had been exposed.

Resolution: The cause of the failure was determined to be abroken interpolar connecting bar on the rotor.

The generator with the failed connecting bars was manufactured byLouis Allis.Based on discussions with PEP cracking interpolar connecting barson their design are not a problem, since they "are equipped withfully interconnecting damper cages...This damper cage constructionis fail-safe under centrifugal and thermal overstress. All cagecomponents remain captive upon their (unlikely) fracture andtherefore, cannot damage the stator winding or any other generatorcomponents."

This failure is not applicable to PG&E's new or spare generator,since our design has a feature which prevents a cracked connectingbar from damaging the generator internals.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 18

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Problem: Safety Review Event Follower 86-054 — IN 86-26,SER 70-84

The notice and SER identified two major problems:

1. -The shim required to maintain clearance at the thrustbearing was missing. As a result, high vibrationlevels accompanied by sparks from the rotor shaftbearing area we'e generated.

2. Electrical insulation between the rotor shaft and theslip-ring end bearing inner race had come loose.Consequently, the rotor shaft has dropped slightlyand rubbed on the bearing housing. The subjectinsulation is utilized to prevent circulatingcurrents through the generator shaft.

Resolution: Item 1 above is not a concern, since the DieselGenerator history of operation at Diablo Canyon has shown novibration problems similar to those caused by a missing shim in thethrust bearing.

Item 2 is also not a concern for our generators. Based ondiscussions with PEP in 1986, "...DCPP generators were manufacturedprior to the model which incorporated the glass/resin bearinginsulator. Since we are currently manufacturing a spare generatorfor DCPP, we recently investigated this exact topic to be certainthat a design variation from the exact duplicate, as you ordered,would not be required. Previously installed DCPP E-P generators,the stocked spare, as well as the sixth generator currently inprogress include a bearing support insulator and do not use thesubject shaft insulator."The insulator failure is not applicable to PG&E's new or sparegenerator, since they do not use this type of shaft insulator.

Licensee Event Report

LER 90-012-01 was forwarded to PG&E by NRC Region V. It is areport issued by Washington Public Power Supply System regardingthe failure of their emergency generators manufactured by PEP, andis evaluated for impact below.

Problem:

1. Bearing Failure—failure was due to loss of lubrication to the

generator thrust bearing which was caused by leakage ofoil from the bearing oil reservoir which supplies thebearing. The oil leakage was caused by an inadequate0-ring seal between the walls of the thrust bearing

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 19

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bracket and the generator housing which form thereservoir. The inadequate 0-ring seal was caused by theexistence of an extra 0-ring groove machined into thegenerator housing adjacent to the thrust bearing bracketwhich prevented the 0-ring from being compressed to obtaina tight seal."

2. Shorted Field Minding-\

"The original generator field pole windings were not woundin accordance with the design requirements in that apolyester resin was used to encapsulate the windings vicethe required Armstrong one-part epoxy resin. Theprocess used to wind the pole pieces also allowed bunchingand abrading of the Dacron glass covering on the windingwire and did not provide adequate direction to assureproper encapsulation (wetting) by the epoxy resin. Thecombination of these errors resulted in=two generatorfield poles in E-DG-1 containing shorted windings and onepole in E-DG-2 containing shorted windings."

Resolution: The generator used at this plant is a model L-11011.This particular application uses two engines, with the generatormounted between them.

Per discussions with Mr. Ron Politi of PEP, the problems identifiedin this report are still under investigation. However, he was ableto provide the following information regarding the potential impactof these problems on our generator.

The generator design in the above case has two bearings, a rollerand a tapered. The tapered bearing is the one that failed in thiscase. Our design does not use a tapered bearing, only the rollerbearing. As discussed in the event report, the extra bearinggroove does not appear on PEP design drawings. Mr. Politi didstate that this utility had a conversion performed on thisgenerator by someone besides PEP, and that may be where the groovecame from. Also, this utility had extensive problems maintainingoil in this bearing.

Mr. Politi stated that they do not know where this extra groovecame from, but to his knowledge this problem has not occurred onany other Peebles generator.

Based on the design difference, satisfactory operation of ourgenerators, and the fact that this seems to be an isolated case,this failure has no impact on PG&E's installed, spare, or newgenerator. Moreover, PG6E uses a grease lubricated bearing, notoil lubricated.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 20

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For the shorted windings, the event report states that the failurewas due to the improper application of the wrong resin on thewindings. Per discussion with Mr. Politi, the Armstrong epoxy wasnot is use when this engine was manufactured. Also, this utilityhas had some operational problems which may have attributed to theshorted windings.

Based on the satisfactory operation of our installed generators,this failure of does not impact their operation.

For the spare generator, shorted windings are not a problem, sincethe Diablo Canyon Preventive Maintenance Program performs meggerchecks to ensure integrity of the windings.

For the new generator being purchased, the Armstrong adhesive isbeing used in the manufacture, and is also independently tested andevaluated in this document. This failure has no impact on thispurchase.

Restricted Equipment ListA review of the PG6E Restricted Equipment List has shown that thereare no components manufactured by PEP or PEM listed (Reference PG&EPIMS Manufacturer Codes 144N and 444P).

NRC Licensee Contractor and Vendor InspectionStatus Reports (NUREG 0040)

The NUREG-0040 Quarterly Reports from March 1981 to December 1989were examined for Inspections performed by the NRC on PEP/PEM.Three reports were found. The summaries below state the InspectionScope, Problems Identified, and Impact on PG&E's new and sparegenerator.

~Re ort: 99900772/82-01Parsons Peebles-Electric Products Cleveland, Ohio

~Sco e: The inspection was conducted as a result of a Part 21pertaining to the improper application of a currenttransformer in the exciter voltage regulator. Also,the following programmatic areas were inspected:

initial management meetinginitial quality assurance programmanufacturing process controlchange controlPart 21 implementation

Problems Identified:1. Posting of 10 CFR Part 21 is inadequate.

NEI PEEBLES NEMP 12. 4 EVALUATION REVISION 2 21

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2. Records of evaluation for the current transformer did notmeet specification.

3. No documented evidence that a transformer conformed to theprocurement requirements.

4. Inspection instructions and results were not on a shoptraveler.

5. Stator punching operations were not- properly logged.6. Revised product travelers and QA documents were not

reviewed and approved per the QA Manual.

~lm act: This inspection was performed by the NRC in 1982. PG&Ehas recently performed audits on PEP and their major subsupplierPEM. These audits have reviewed, in depth, the programs examinedby the NRC. Any programmatic concerns have been documented inAudit Finding Reports and are evaluated elsewhere in this document.Also, the specific problem with the current transformer is notapplicable here, since it is part of the voltage regulator and notsupplied as part of the new or spare generator assembly.

~Re ort: 99901065/86-01Peebles Electric Machines Edinburgh, Scotland

~8co e: Implementation of the guality assurance program inselected areas.

Problems Identified: None

~lm act: During this visit the NRC reviewed or witnessed:

Parson Peebles purchase orders for the PGsE sparepurchased in 1986incoming material inspectionsstoragecoil bending and forming operationsinsulation of windingscalibration of test equipment

There was one inconsistency found: the components supplied to PEMby PEP lacked unique identification and could not be traced to theitem numbers of the PO and subsequently the C of C's. The qualitycontrol engineer took immediate corrective action by writingdeficiency reports and affixing nonconformance tags to thecomponents as required by the quality control procedure. PEM thencontacted PEP and requested they identify each item supplied withthe relevant PO item number for future shipments and provide across reference in the C of C. This Inspection report has noimpact on PG&E's new or spare generator.

~Re ort: 99900772/86-01Parsons Peebles-Electric Products Cleveland, Ohio

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 22

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~Sco e: Review actions taken on previous inspection findings,review documentation for failures.

Problems Identified:1. Parson Peebles did not indicate applicable drawings,

revisions, specification or 10 CFR 50 Appendix B,applicability on a purchase order to Concorde Controls fora safety related manual voltage regulator to be used atGrand Gulf Nuclear Power Station.

~im act:

1. PGsE's purchase order references drawings, revisions, andserial numbers. PG&E has reviewed all Design Changes andDiscrepancy Notes as part of this evaluation.

2. 10 CFR 50 Appendix B was referenced in the purchase orderto PEP. In PEP's order to PEM, 10 CFR 50 Appendix B doesnot apply, since PEM is a commercial grade supplier.

This inspection Report has no impact on the new or spare generator.Recent audits (See References 3 and 4) performed by PGEE havereviewed the procurement documents associated with this purchase,and any discrepancies have been documented in Audit Finding Reportsand are evaluated elsewhere in this document.

Government Industry Data Exchange Program

A review of this data base did not identify any failures forgenerators/parts manufactured by PEP/PEM.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 23

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II. SUPPLIER QUALIFICATION REVIEW

ENGINEERING EVALUATION OF FINDINGS FOR NEI PEEBLESELECTRIC PRODUCTS i CLEVELANDi REFERENCE PG&E AUDIT 90197S

The purpose of this section of the evaluation is to review eachfinding, evaluate the qualification of the new generator purchase,and determine the acceptability of the stocked spare.

~ Each audit finding is listed, along with Engineering's resolutionand a statement of impact regarding the spare generator.

Problem: PG&E AFR 90-067 — Design Control

PEP has not documented their "Incoming Order Review" for PG&E's JobNo. S-1128 (Generator for 6th Diesel)., Until this review is fullydocumented or performed, PEP cannot assure that the design of thenew generator is "like for like" with the design of the sparegenerator, per Purchase Order requirements. Material substitutionswere not submitted to PG&E nor were drawing changes.

Resolution: To resolve this finding, PG&E participated in PEP'saudit of PEM and requested that PEP submit a description of alldesign changes, material changes, and Discrepancy Reports since themanufacture of the original five generators.

Replacement Part Evalua'tion E-7505 Attachment 3 'documents thiscompensatory action. The Design Change review was conducted fromthe present to 1984, which is when the manufacturing activitiesmoved from Cleveland to Edinburgh. In order to complete theSeismic Calculation, further reviews will be conducted at PEP(Reference RPE E-7505 sheet 25, Limitation 1).

Based on PG&E participation in the PEP audit of PEM, the Pre-Operational Endurance Testing to be performed at Diablo Canyon, thecompensatory actions outlined in RPE E-7505, and the satisfactorycompletion of the Design Review to 1969, this finding is resolvedfor the one time purchase of the Sixth Generator.

Im act of AFR 90-67 on S are: The design change reviews documentedin RPE E-7505 Attachment 3 have been performed back to 1984, whichencompasses the design requirements when the spare was puichased in1986. All changes have been found to be acceptable. This findinghas no impact on the quality or acceptability of the sparegenerator.

Problem: PG&E AFR 90-068 — Subsupplier Evaluation

ITEM 1 — PEP's quality assurance program does not includeprovisions for the dedication of commercial gradeparts (i.e., Identification of criticalcharacteristics and providing a method to verify

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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them). As a result, items supplied under PurchaseOrder No. 034525 for the generators were purchasedand supplied as commercial grade with no dedicationactivities performed.

ITEM 2 — PEP's external audit/evaluation program used tosubstantiate the qualification of subsuppliers is notadequate to comply with PG&E's Specification and ANSIN45.2.13 requirements.

Resolution: This finding is resolved by: PG&E review of theDedication Evaluations performed by PEP; PG&E review of PEP'saudits of calibration service suppliers (Reliance and Webber); andPG&E participation in PEP s audit of PEM, including additionalinvestigation regarding selected PEM subsuppliers (See Findings9003-1 through 6 later in this section).

In addition, to ensure no commercial grade items purchased from PEPhave been installed in the plant without evaluation, PG&E hasperformed a search of all purchase orders from this supplier(reference PG&E PIMS Action Request A0201157 evaluations 03 and04). All items, excluding the spare generator, have been evaluatedby a PG&E Replacement Part Evaluation prior to installation in asafety related application.The combination of these activities and all the compensatoryactions documented in RPE E-7505 resolve this finding for the onetime purchase of the Sixth Generator.

Im act on S are: The additional investigation performed by PG&Einto the qualification of PEM subsuppliers has not identified anyinstances where that supplier was not qualified to provide thesubject part. Based on this investigation, and the evaluation ofrecent audit results, PG&E concludes that the issues regardingsupplier evaluation have no impact on the spare generator.

Problem: PG&E AFR 90-069 — Dedication Testing

Testing, specified in PG&E purchase order ZS-1539-AB-9 wasperformed by PEP without the use of approved testprocedures/instructions.

Resolution: To resolve this finding, Engineering has reviewed andapproved the PEP Dedication Evaluations for the Brush Holder,Brush, Current Transformer, Insulator, Bearing Seal, BushingInsulator, CT Test Switch, and Insulating Tape. Also, PG&E QualityAssurance has reviewed the M&TE calibration data for theperformance of the special tests in Cleveland (See Reference 29).

Based on review "of the Dedication Evaluations performed, and thePre-Operational Endurance Testing and inspections to be performedat Diablo Canyon, this finding is resolved for the one time

NEI PEEBLES NEMP 12.4 EVALUATION , REVISION 2 25

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purchase of the Sixth Generator. See RPE E-7505 Attachments 1 and4 for compensatory actions taken by PG&E for this finding.

Im act on S are: The technical requirements called out in thepurchase order for the new generator and the spare generatorpurchased in 1986 are the same. PG&E's review of the designchanges/equivalency and PEP/PEM interface have,not identified anydeficiencies. Also, the verifications performed by PEP on thecommercial grade parts used in the new generator were found to beadequate. Therefore, this finding has no impact on the quality oracceptability of the spare.

Problem: PG&E AFR 90-070

PEP has not verified the certification system of outsidecalibration services by audit or evaluation. M&TE program does notmeet the requirements of the specification.Resolution: To resolve this finding, PG&E QA has reviewed theaudits of Reliance Electric Instrument Lab and Starrett WebberGage. Based on these reviews, this finding is closed for the onetime purchase of the Sixth Generator (See Reference 29).

Im act on S are: The technical requirements called out in thepurchase order for the new generator and the spare generatorpurchased in 1986 are the same. PG&E's review of the designchanges/equivalency and PEP/PEM interface have not identified anydeficiencies. Also, PG&E reviewed the results of the recent PEPaudits of their calibration suppliers, and found them to beadequate. Therefore, this finding has no impact on the quality oracceptability of the spare.

Problem: AFR 90-071

PEP's Quality Assurance Record storage, handling and retrievalprogram is not sufficient to'eet the requirements of PG&Especification and ANSI N45.2.9.

Resolution: This finding regarding the control of records isresolved by the fact the pertinent documents for the Sixth Dieselhave been submitted to PG&E in accordance with the EngineeringSpecification.This finding is resolved for the one time purchase of the SixthGenerator.

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pertinent documents for the spare were submitted and incorporatedinto the PG&E document system. There is no impact on the qualityor acceptability of the spare.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 26

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Problem: AFR 90-072

PEP's audit program (internal) is not sufficient to meet therequirements of the PG&E specification and ANSI N45.2.12.

Resolution: To resolve this finding, PG&E participated in PEP'saudit of PEM. The findings are addressed later, in this section.

Based on this compensatory action, this finding is resolved for theone time purchase, of the Sixth Generator.

Im act on S are: The technical requirements called out in thepurchase order for the new generator and the spare generatorpurchased in 1986 are the same. PGaE's review of the designchanges/equivalency and PEP/PEM interface have not identified anydeficiencies. The fact that internal audits were not completeduring a 1989 assessment has no effect on the quality oracceptability of the spare.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 27

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II. SUPPLIER QUALIFICATION REVIEW CON'T

ENGINEERING EVALUATION OF FINDINGS FOR PEEBLES ELECTRICMACHINES, REFERENCE PEP AUDIT 9003

Problem: 9003-1, Subsupplier evaluations, qualityrequirements in purchase orders, approvedsuppliers list not complete.

PEM has three methods for the qualification of their subsuppliers:Audit; History — Vendor Assessment Record; British Registry.

The British Registry is similar to the following U.S. documents:

DECAS list of suppliers usedcontracts,ASME qualified suppliers andualit Mana ement Institute endorsed su liers.

for Department of Defense

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Resolution: To resolve this finding, PG&E has performedindependent reviews of selected suppliers to PEM.

This finding is closed for the one time purchase of the SixthGenerator based on the performance of the Pre-Operational EnduranceTesting and the additional compensatory actions discussed in RPE E-7505 Attachment 4.

PG&E QA Specification SP-D-Peebles invokes British Standard 5750.This British quality standard recognizes the British Registry ofQualified Suppliers. These suppliers are endorsed based on anaudit performed by the Bri'tish Government. These audits aresimilar to the NRC's NUREG 0040 Vendor Inspections. This documentis utilized by the Nuclear as well as other industries in theUnited Kingdom.

Im act on S are: The additional investigation performed by PG&Einto the qualification of PEM subsuppliers has not identified anyinstances where that supplier was not qualified to provide thesubject part. Based on this investigation, and the evaluation ofrecent audit results, and the satisfactory results of themanufacturer testing, PG&E concludes that adequate supplierevaluation was performed for the spare generator.

Problem: 9003-2, Calibration . instructions andcertification for the magnetic crack detector,interturn unit, and multimeter.

Resolution: Based on discussions with Mr. Frank Marino, QualityAssurance Manager for PEP, the procedures for calibration have beenissued by PEM. However, these procedures are proprietary and willnot be provided to us. PEP has forwarded the certificates for the

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 28

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above listed instruments. Based on the review of thesecertificates, this finding is resolved for the one time purchase ofthe Sixth Generator.

Im act on S are: The technical requirements called out in thepurchase order for the new generator and the spare generatorpurchased in 1986 are the same. PG&E's review of the designchanges and PEP/PEM interface have not identified any deficiencies.

Also, Mr. Politi of PEP has stated that the standard practicesutilized for the calibration of these instruments have not changedsince 1986. The fact that these particular instruments were notcalibrated in 1989 does not effect the quality or acceptability ofthe spare.

Problem: 9003-3, Inadequate documentation of receiptinspection.

Resolution: The source of this finding is that PEM did notdocument their receipt inspection, only stamped the packing slip.The inspections performed on non-complex items were consideredadequate by the PG&E Audit Team.

The inspections for complex items were acceptable based on thereceiving inspection and testing activities for the shaft, statorframe, pole assemblies and stator coils witnessed by a PG&E SourceInspector.

Based on the Pre-Operational Endurance Testing to be performed atDiablo Canyon and the inspections described in RPE E-7505Attachment 2, this finding is resolved for the one time purchase ofthe Sixth Generator.

d' dthe receipt inspections performed were adequate, this finding hasno impact on the quality or acceptability of the spare.

Problem: 9003-4, Cleveland and Scotland interface.

Resolution: Per discussion with Mr. Politi of PEP, the PEP/PEMinterface works as follows. The equivalency of PEM's proceduresand specification have been verified by PEP Audit. When a purchaseorder is issued to PEM, PEP calls out the drawings, specificationsand most, critical procedures. If for any reason PEM changes to analternate verification method or material, their engineeringorganization evaluates the acceptability, and notifies PEP. Then,PEP also performs an engineering evaluation to verify the adequacyof the change.

To resolve interface issues, PG&E required PEP to perform andequivalency evaluation between the specifications. Based onconcerns of inadequate documentation of these equivalency

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 29

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evaluations, further reviews will be performed (Reference RPE E-7505 sheet 25 Limitation 2).Based on the Pre-Operational Endurance Testing, the equivalencyreviews documented in RPE E-7505 Attachment 3, and the satisfactorycompletion of the further documentation of these reviews, thisfinding is resolved for the one time purchase of the SixthGenerator.

.Im act on S are: The technical requirements called out in thepurchase order for the new generator and the spare generatorpurchased in 1986 are the same. PG&E's review of the designchanges and PEP/PEM interface have not identified any deficiencies.Therefore, this finding has no impact on the quality oracceptability of the spare.

Problem: 9003-5, Crimping inspection procedure.

Resolution: Based on discussions with PEP, PEM has revised thisprocedure. To ensure that the revisions are adequate, theprocedure was reviewed in Scotland by a PG&E Representative fromDCPP Electrical Maintenance. Also, a revision to CrimpingInspection Procedure R6081 was received and reviewed by PG&EQuality Assurance prior to their final Follow-Up Assessment (SeeReference 29). Procedure R6081 applies to the stator coil jointsand coil/cable to parallel ring connections.

Based on the inspections of the crimping for our generator(documented in RPE E-7505 Attachment 2) and the satisfactorycompletion of the Pre-Operational Endurance Testing, this findingis resolved for the one time purchase of the Sixth Generator.

Im act on S are: The technical requirements called out in thepurchase order for the new generator and the spare generatorpurchased in 1986 are the same. PG&E's review of the designchanges and PEP/PEM interface have not identified any deficiencies.Also, Mr. Politi of PEP has stated that the standard practicesutilized for crimping have not changed since 1986.

The fact that the crimping inspection procedure used in 1989 doesnot document all activities does not effect the acceptability ofthe spare, since the inspection procedure has been revised todocument standard practices, and this revision was reviewed by PG&Eand found to be acceptable.

Problem: 9003-6, Documentation was not availableattesting to the equivalency of NEI PeeblesProcedures and Specifications.

Resolution: As discussed earlier, PEP is the responsible DesignOrganxzatxon for the Sixth Diesel Generator although the generatoris manufactured by PEM in Scotland. As a result, it is important

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as PEP's, or which have been evaluated by them to ensure theirequivalency.

The compensatory actions taken for the PEP/PEM interface issues(Finding 9003-4) also apply to this issue. PEP has performedequivalency reviews. PGSE performed two Follow-Up Assessments ofPEP (See References 9 and 11) to verify the evaluation process.

Based on concerns of inadequate documentation of these equivalencyevaluations, further reviews will be performed (Reference RPE E-7505 sheet 25 Limitation 2).

Based on the Pre-Operational Endurance Testing, the equivalencyreviews documented in RPE E-7505 Attachment 3, and the satisfactorycompletion of the further documentation of these reviews, thisfinding is resolved for the one time purchase of the SixthGenerator.

Im act on S are: The final equivalency reviews have been performedback to 1984, which encompasses the design requirements when thespare was purchased in 1986. All changes have been found to beacceptable. This finding has no impact on the quality oracceptability of the spare generator.

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III. ENGINEERING EVALUATION OF ADDITIONAL TECHNICAL ISSUESRAISED BY PG&E

Problem: The issue raised was whether a change in rod material foruse in the armature assembly could result in cracking of thethreaded portion of the rod and the end plate.Resolution: To resolve this question for the sixth dieselgenerator, PEM has reperformed the welding of the rods usingpreheat and the authorized welding procedure. This fact isdocumented in a letter from Peebles dated December 3, 1990.

Engineering agrees that this resolves the rod welding issue forPurchase Order ZS-1539-AB-9 (See Attachment B).g» g d dinspections performed by PEP on the stud/rod welds in the spare(see Reference 15). No cracks were identified. Based on thisreview, NECS Engineering concludes that the stud/rod welding on thespare generator is adequate.

Problem: The terminal box on the side of the "spare" generator isheld to the frame of the stator by two welded steel gusset plates.During transit the top heavy terminal box tore away from the metalat the back of the box. Additional supports or bracing at the topof the terminal box to anchor it more rigidly to the frame of thestator should be provided to prevent recurrence of this problem.Please submit a drawing to PGaE proposing your resolution.Resolution: PEP is adding terminal box supports per drawing changerequest 11413.

NECS Engineering has reviewed the change and concurs with thissolution. The terminal box supports are not a concern for theexisting five generators, since this is a shipping/handling issue,and the terminal boxes on the original generators were not damagedduring shipment.

Im act on S are: Additional terminal box supports will be added tothe spare by a design change package, see Action Request A0214809.

Problem: The space heaters on the existing generators arernaccessible. The end bells on the machine must be removed inorder to provide access. Due to the close proximity of the heatersto the fibre glass stator coil shields, shield blistering hasoccurred. Please review your design to verify that the heaters arecorrectly sized. It appears that a lower heat output may bedesirable.

As a minimum, the space heaters should be located further away fromthe fibre glass shields and the space heater accessibilityimproved. Please provide drawings proposing your solution.NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 32

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Resolution: PEP confirms that the space heaters are correctlysized when operated with a 480V, 3 phase, 60 Hertz supply. They donot intend to redesign/rearrange the heaters for this purchaseorder.

Engineering will resolve the supply power problem for the existingfive generators per Action Request A0166454.

. Im act on S are: This issue has no impact on the stocked spare.Any corrective action implemented by the above mentioned'ActionRequest will be performed at the plant, and therefore will applywhen and if the spare is installed.Problem: The CT secondary leads between the CT output and the CTTest Switch are tight (i.e. no slack in these leads at all). Thereis a strain on these leads when the generator is running andtherefore we request that these leads have more slack in them toprovide greater flexibility and less strain on the wires andterminations when the generator is running.

Resolution: PEP has taken appropriate measures to ensure that theCT secondary leads between the CT output and test switch haveenough slack in them to prevent strain when the engine is running.

Engineering concurs with this solution for the new generator.The leads on the existing five generators have been inspected andrepaired as necessary per Work Orders C0071091, C0071192, C0071196,and C0071198.

Im act on S are: The CT leads on the spare are satisfactory, seeAction Request A0214809 evaluation l.Problem: Welding cracks have developed where the skin or cover ofthe stator frame is joined to the circumferential structuralmembers of the stator around the vent openings, on the installedgenerators.

Particular attention to these welds should be given duringfabrication to avoid the recurrence of this problem on thisgenerator. Previously in our handwritten transmittal it wasreported that the weld cracks were in the main structural membersof the stator. This is not the case, as was discovered during ourrecent, more thorough, investigation.

Resolution: PEP has taken appropriate measures to ensure thatspecial attention is given to all welding in the areas described.

Engineering concurs with this solution of the problem for the newgenerator.

The stator covers on the existing five units were rewelded perdesign change notices 43041 and 44041.

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Im act on S are: Engineering will generate a DCN to reweld thestator covers on the spare generator. Action Request A0213896tracks the issue of this DCN. Since the rewelding is apreventative measure, and no cracks exist in the spare now, thisAction Request does not prevent release of the spare generator fromstock.

Problem: NOMEX has served well as the bonding material on top andbottom of the pole turns. Please assure that NOMEX continues to beused on this generator.

Resolution: pEp has stated that NOMEX will continue to be used onthis generator.

There is no problem and no action required for the existing fivegenerators.

Im act on S are: There is no problem or action required for thespare generator.

Problem: The bonding adhesive between conductor of the straightsection of the pole coil conductors is insufficient. The adhesiveused has dried out and the coil conductors chatter when thegenerator is running. A better adhesive with better agingproperties should be used on this generator. We understand thatCleveland supplied this adhesive to Scotland and we wish to knowhow the adhesive selected is qualified to be appropriate for thisapplication and how you verified that the adhesive specified is infact the adhesive applied to the generator pole coils.Resolution: PEP's current standard bonding adhesive is Armstrong701 Epoxy. NECS Engineering's basis for acceptability of thisadhesive is addressed earlier in this section.

DCPP Maintenance noted this problem on one of the existing units.The problem is not critical at this time and is being watched incase it develops. No further action is required at this time.

Im act on S are: No action required at the present time.

Problem: The polyester glass material used for the stator slotwedges appears to have given satisfactory service on the existinggenerators. We understand that Scotland has substituted a newmaterial type GP03. Please provide us with your basis for approvalof this substitution.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 34

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Resolution: PEP has submitted a material substitution for thisproduct. Engineering has reviewed this and noted that approval forthe change has been given by PEP to PEM. No action is required forthe existing five units.Im act on S are: No action required for the spare generator.

Problem: Please ensure that the blocking and bracing at the endsof the rotor are completely "flat." We have experienced difficultywhen attempting to,slide out the rotor from within the stator. Dueto the narrow air gap clearances, the end bracing etc. of the rotortends to scuff the internal side of the stator.Resolution: PEP will take appropriate measures to ensure that theID of the stator coil end turns are concentric, to the degree thatthe rotor will not rub the end turns during removal.

During a trip to Scotland 1-7-91, a PG&E representative from DCPPElectrical Maintenance checked to ensure that this problem does notexist on the sixth generator (See RPE E-7505 Attachment 2 for PGaESource Inspection Activities).This issue was identified for ease of maintenance, and is not amanufacturing defect. There is no impact on the existing units.Im act on S are: This issue was identified for ease ofmaintenance, and is not a manufacturing defect. No action isrequired for the spare generator.

Problem: Slip ring run out: The slip rings, due to eitherrncorrect machining or assembly, are not concentric with the shaft.Considerable "bounce" has been observed on the existing generatorswhen they are running. Closer tolerances should be achieved in themachining and fit of these slip rings.Resolution: Factory has been notified and alerted so as not torepeat this problem during the fabrication.Engineering agrees that closer attention during fabrication closesthis issue for the new generator.

Slight eccentricity was observed on one of the five installedunits. The problem is not severe and is being watched on apreventative maintenance basis. No action required at this time.

Im act on S are: Not observed as a problem on the spare. Noimpact.

Problem: We have changed the specification voltage for the spaceheaters from 480 VAC to 528 VAC (maximum). Please redesign thespace heaters to allow for this change. If additional costs arerequired to implement this change, provide a quote and obtain our

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acceptance before proceeding with this change.

Resolution: This change cannot be accommodated on this purchaseorder.

Engineering will write a design change to reduce the supply voltageto 480 VAC. See Action Request A0166454.

Im act on S are: This issue has no impact on the stocked spare.. Any corrective action implemented by the above mentioned Action

Request will be performed at the plant, and therefore will applywhen and if the spare is installed.Problem: Outline drawing C-0899IU Revision l indicated a revisionto the lack screw location. What is the reason for this change?

Resolution: - The generator stator frame with feet is built tomanufacturing drawings which locate things like the jack screwhole. The outline was revised to reflect the equipment as built.Since this is an interface hole and is a documentation of an asbuilt condition, it has no impact on the existing five units.

Im act on S are: Since this is an interface hole and is adocumentation of an as built condition, it has no impact on thespare generator.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 36

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IV. ENGINEERING EVALUATIONOF NONCONFORMANCES AND UNRESOLVEDITEM RAISED IN NRC INSPECTION REPORT 99900772 91-Oli PEP

Nonconformance 99900772/91-01-01, DesignChanges

"PEP failed to (1) establish adequate measure to controlchanges to design, materials and manufacturing processescommensurate with those controls applied to the originaldesign, (2) provide for performing design verificationsfor the changes in design, materials, and manufacturingprocesses, (3) demonstrate that the changes in the designwere controlled commensurate with the design controlsapplied to the original design, and (4) demonstrate thatthe original design basis had been correctly translatedinto revised specifications, drawings, procedures, andinstructions.o PEP's design-basis reconciliation of design

changes for PG&E's generator was documentedand verified only to 1984 when the Clevelandmanufacturing facility closed. PEP could notsubstantiate that the new generator was like-for-like to PGSE's five existing operatingpower generators."

Resolution: To resolve this issue regarding design reconciliation,PGSE participated in PEP's audit of PEM and requested that PEPsubmit a description of all design changes, material changes, andDiscrepancy Reports since the manufacture of the original fivegenerators.

Replacement part Evaluation E-7505 Attachment 3 documents thiscompensatory action. The Design Change review was conducted fromthe present to 1984, which is when the manufacturing activitiesmoved from Cleveland to Edinburgh. In order to complete theSeismic Calculation, further reviews will be conducted at PEP(Reference RPE E-7505 sheet 25, Limitation 1).

Based on PG&E participation in the PEP audit of PEM, the Pre-Operational Endurance Testing to be performed at Diablo Canyon, thecompensatory actions outlined in RPE E-7505, and the satisfactorycompletion of the Design Review to 1969, this nonconformance isresolved for PGaE's Sixth Generator.

See Sections VI and VII of this evaluation for discussion andresolution of specific technical issues associated with this item.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 37

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Nonconformance 99900772/91-01-02, DesignInterface/Equivalency Evaluation

"PEP failed to (1) establish adequate measures to controlthe activities between it and its sister organization,Peebles Electric Machines (PEM) of Edinburgh, Scotland,that consisted of the review, approval, release,distribution, and revision of documents involving theirrespective design interface, (2) demonstrate that theresults of PEM's design translation activities wereequivalent to the design requirements specified by PEP,(3) adequately document the critical requirements oracceptance criteria compared during the equivalencyevaluation, and (4) adequately document the results ofthe equivalency evaluation or other bases to supportPEP's conclusion that PEM procedures and specificationwere equivalent.

o The equivalency evaluations were not auditablebecause (1) PEM's equivalent procedures ormaterial specifications were not alwaysavailable for comparison to PEP's proceduresor material specifications and (2) theevaluations consisted of only a brief summaryof the procedures or materials specifications.PEP's equivalency evaluations failed toadequately document (1) the criticalrequirements or acceptance criteria comparedduring the evaluation and (2) the results ofthe evaluation or bases to support PEP'sconclusion that the documents wereequivalent."

Resolution: To resolve interface issues, PG&E required PEP toperform and equivalency evaluation between the specifications.PEP's review examined seventy procedures and specifications forpotential changes, and resulted in forty-two equivalencyevaluations. PG&E Engineering reviewed these material andmanufacturing specification differences between PEP and PEM, andconcluded that the equivalency evaluations performed by thesupplier were adequate.

Based on concerns of inadequate documentation of these equivalencyevaluations, further reviews will be performed (Reference RPE E-7505 sheet 25 Limitation 2). Based on the Pre-OperationalEndurance Testing, the equivalency reviews documented in RPE E-7505Attachment 3, and the satisfactory completion of the furtherdocumentation of these reviews, this nonconformance is resolved forPG&E's Sixth Generator.

See Sections VI and VII of this evaluation for discussion andresolution of specific technical issues associated with this item.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 38

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Nonconformance 99900772/91-01-03, CommercialGrade Dedication

"PEP failed to (1) establish adequate measures to providefor the selection and review for suitability of theapplication for materials, parts and equipment that wereprocured as commercial grade items and were essential tothe generator's ability to perform its intended designand safety-related function, (2) ensure the suitabilityof the stator coil's resistance temperature detectors,slip rings, adhesives, and mounting sleeve insulator forthe slip rings, and (3) ensure the suitability of thematerials, parts, and equipment PEM procured.

Resolution: To resolve issued regarding commercial gradededication, PG&E reviewed and approved the Dedication Evaluationsperformed by PEP and participated in PEP's audit of PEM.

The compensatory actions for Dedication Evaluations and suitabilityof parts documented in RPE E-7505 resolve this nonconformance forPG&E's Sixth Generator.

See Sections VI and VII of this evaluation for discussion andresolution of specific technical issues associated with this item.

Nonconformance 99900772/91-01-04,Instructions, Procedures, and Drawings

"PEP failed to establish adequate measure to ensure (1)that activities affecting quality were prescribed bydocumented instructions, procedures, or drawings; (2)that activities affecting quality were accomplished inaccordance with these instructions, procedures, ordrawings; and (3) that instructions, procedures, ordrawings include appropriate quantitative or qualitativeacceptance criteria for determining that importantactivities were satisfactorily accomplished. PEP alsofailed to demonstrate that the activities affectingquality (1) to fit the dovetail rotor pole assemblies tothe rotor spider assembly, (2) to perform that brazingrequired to fabricate the rotor spider assembly, and (3)to perform brazed joint spliced-connections in the fieldcoil winding were documented or accomplished inaccordance with instructions, procedures, or drawingsthat contained quantitative or qualitative acceptancecriteria and were equivalent to those specified by PEP."

Resolution: Per input from PEP, the lack of detailed instructionsfor the dovetail rotor pole assembly is not an issue that wouldjeopardize the function of the generator. This procedure isconsidered a standard shop practice. As PEM has an extensivequality control system, PEP cannot approve every standard or

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 39

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procedure individually that may be applied to an item subcontractedto PEM.

The fabrication of the rotor pole spider assembly consists ofsimple operations that are part of normal shop practice. PEPbelieves that these simple'ctivities do not require a documentedprocedure. If the rotor pole were not assembled correctly, theresult would be excess vibration. PEP stated that the functionaltesting of the generator, particularly the overspeed portion of thetesting, verifies that these assembly operations were conductedcorrectly.PEP has performed engineering evaluations to address equivalency of,PEM's brazing procedures for items (2) and (3) of thenonconformance. The two engineering evaluations are attached tothe PEP reply letter. The evaluation conclusions indicate that thePEM procedures are acceptable to PEP. In addition, PEP states ithas no knowledge that there is spliced field coil windingconnections on the PG&E generator.

The adequacy of documented instructions for the assembly of thisgenerator is verified by a combination of Functional Testing,Source Inspection, and audit participation. The combination ofthese compensatory actions (outlined in RPE E-7505) and thesatisfactory completion of the Pre-Operational Endurance Test andpost test inspections resolve this nonconformance for PG&E's SixthGenerator.

See Sections VI and VII of this evaluation for discussion andresolution of specific technical issues associated with this item.

Unresolved Item 99900772/91-01-05, NEI PeeblesQuality Assurance Manual

"Although PEP's second quality assurance manual (QAM-101)superseded QAM-100, it contained several weaknesses thatrequired strengthening before its implementation.Because the team did not evaluate the implementation ofQAM-101, this concern will be evaluated in more detailduring a future inspection."

Resolution: This unresolved item does not impact the quality ofthe sixth generator, since QAM-101 is not applicable to thispurchase. Weaknesses in QAM-100 were recognized by PGaE duringAudit 90197S, and the findings were written with corrective actionsdirected to a one time purchase of the generator with noconsideration to the permanent resolution of programmatic issues.

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V. ENGINEERING EVALUATIONOF NONCONFORMANCES AND UNRESOLVEDITEM RAISED IN NRC INSPECTION REPORT 99901065 91-01, PEM

Nonconformance 99901065/91-01-01

"PEM failed,to (1) establish adequate measures to control thedesign interface activities between it and its sister company,NEI Peebles — Electrical Products, Inc. (PEP) of Cleveland,Ohio, (2) demonstrate that the results of PEM's designtranslation activities were equivalent to the designrequirements specified by PEP, (3) adequately document thecritical requirements or acceptance criteria compared duringthe equivalency evaluation, and (4) adequately document theresults of the equivalency evaluation or other bases tosupport PEM's conclusion that its drawings, procedures, andmaterial specifications were equivalent."

Resolution: To resolve interface issues, PG&E required PEP toperform an equivalency evaluation between the specifications.PEP's review examined seventy procedures and specifications forpotential changes, and resulted in forty-two equivalencyevaluations. PG&E Engineering reviewed these material andmanufacturing specification differences between the PEP and PEM,and concluded that the equivalency evaluations performed by thesupplier were adequate.

Based on concerns of inadequate documentation of these equivalencyevaluations, further reviews will be performed (Reference RPE E-7505 sheet 25 Limitation 2). Based on the Pre-OperationalEndurance Testing, the equivalency reviews documented in RPE E-7505Attachment 3, and the satisfactory completion of the furtherdocumentation of these reviews, this nonconformance is resolved forPG&E's Sixth Generator.

See Sections VI and VII of this evaluation for discussion andresolution of specific technical issues associated with this item.

Nonconformance 99901065/91-01-02

"PEM failed to (1) establish adequate measures to provide forthe selection and review for and verification of suitability.of application for materials, parts, equipment, and servicesthat were procured as commercial grade items and wereessential to the generator's ability to perform its intendeddesign and safety-related function and (2) ensure thesuitability of the rotor pole magnet wire, the Bakeliteelectrical separation ring, and certain materials, parts, andequipment that were accepted based on certificates ofconformance from PEM's suppliers that were not audited toverify that their measures to control design, processes, andmaterial changes were adequately implemented."

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Resolution: To resolve issues regarding subsupplier evaluation andsuxtabxlity of parts, PG&E has performed independent testing andreview of selected suppliers as described in RpE E-7505 Attachment4 ~

Based on these compensatory actions taken by PGSE and thesatisfactory completion of the Pre-Operational Endurance Testingand post test inspections,, this nonconformance is resolved forPG&E's Sixth Generator.

See Sections VI and VII of this evaluation for discussion andresolution of specific technical issues associated with this item.

Unresolved Item 99901065/91-01-01

Varnished Rotor pole magnet wire.

Resolution: Per PEP letter (Reference 31), the rotor pole magnetware specified was unvarnished. The wire used in the sixthgenerator was lightly varnished. This was an error in the incominginspection, not the failure to identify a design change. Theunvarnished wire was specified by PEP in the purchase order. Toensure varnished wire is acceptable, PEP is performing additionaltesting of the lightly varnished wire.

RPE E-7505 sheet 25 Limitation 3 will track the completion andevaluation of this testing.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 42

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VI. ENGINEERING EVALUATIONOF GENERIC TECHNICAL ISSUES RAISEDIN INSPECTION REPORTS'EETINGS AND CORRESPONDENCE WITHNRC RELATIVE TO THE SIXTH GENERATOR PURCHASE

Reference NRC Inspection Reports 50-323/91-202 (Sixth Diesel),99900772/91-01 (NEI Peebles Cleveland), and 99901065/91-01 (PeeblesElectric Machines Scotland)

S ecification of Critical Com onents

Issues: Does the Critical Item List envelope allgenerator components with a safety relatedfunction; timeliness of transmittal of list tosupplier (50-323/772/1065)

Resolution: The fourteen critical items identified in EMMRevisions 1 and 2 were determined by PG&E Electrical Engineeringand PEP Engineering. . This list was not intended to be allinclusive of the generator critical items, but rather was toencompass all items that could be procured as commercial grade byPEP and consequently had to be verified by test.The list of twenty-seven critical items identified in EMM Revision3 were determined by PG6E, PEP, and PEM during PEP Audit 9003 ofPEM in Scotland. Although the final documentation of the list oftwenty-seven critical items did not occur until 1/28/91, this listwas utilized during the performance of PEP Audit 9003 conductedOctober 8-12, 1990.

Based on the interface with the manufacturer at the time of the PEMaudit, the twenty seven items referenced represent all criticalcomponents of the generator assembly.

Based on concerns raised by the NRC Inspection reports, RPE E-7505sheet 17 shows a correlation between the following parts and thePGSE Compensatory Actions performed by PGSE: All GeneratorConnections and Terminations, Slip Ring Mounting Sleeve Insulator,Brush-Rigging Mounting Sleeve Insulator and Bearing Mounting SleeveInsulator.However, it is PGaE's position that the list of twenty-seven partsconstitute all critical components of the Sixth Generator.

Based on the compensatory actions (See RPE E-7505) taken for theitems identified as critical, the functional testing performed bythe supplier, and the satisfactory completion of the Pre-Operational Endurance Testing and post test inspections, PG&Econsiders the Sixth Generator acceptable for use in a safetyrelated system.

See Section VII of this evaluation for discussion and resolution ofspecific technical issues raised.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 43

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Verification of "Like-for-Like" for Sixth Generator

Issue: Is the Sixth Generator like-for-like to theoriginal five per PG&E purchase order(772/1065).

Resolution: PG&E Engineering Material Memo DC2-3322-BRH-E page 3states "The generator shall be identical in form, fit and functionto the spare generator with serial number 38604851, outline drawingC-08991E, which was furnished by NEI Peebles in 1986/87." (Unitmanufacturing f259132-1 and PG&E PO g 4R-71595.)

This generator shall also be identical to the units l-l, 1-2, 1-3i2-1, & 2-2 bearing the serial numbers 16908022, 23, 24, 25, & 26except that it will have the improved coil insulation systemfurnished on the spare generator serial 438604851 and described inNEI Peebles Letter of 1-31-86..]"

Although PG&E's purchase order (EMM) required the sixth generatorto be "identical in form, fit and function," it was recognized thatthere were differences from the original generators supplied by NEIPeebles, and therefore the new generator was considered to be an"equivalent" verses "identical" item.

RPE E-7505 includes a review of all design changes, materialchanges, and discrepancy reports. This review is based on asubmittal by PEP of all changes made. This submittal of designchanges was subsequently verified on a sample basis by PG&E QA.The submittal included three discrepancy reports and twenty-ninedesign changes. Engineering reviewed the change summary, anddetermined that the results of the design change review performedby the supplier were acceptable.

The evaluation of design changes and specification/procedureequivalency was not required prior to the 1984 time frame since theissues requiring this review were associated with a lack of formalinterface between PEP and PEM. This concern did not exist prior to1984 since the design and manufacturing activities were controlledby PEP prior to 1984.

However, based on additional discussion with the NRC regarding thescope of this review, PG&E is pursuing with PEP the expansion ofthis review to the 1969 time frame of the original five generators.

Based on Equivalency reviews performed to date; satisfactorycompletion of the Design Change Review to 1969 and furtherdocumentation of equivalency reviews (RPE E-7505 sheet 25Limitations 1 and 2); and satisfactory completion of the Pre-Operational Endurance Testing, PG&E feels that although the SixthGenerator is not like-for-like, it will perform its intended safetyfunction.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 44

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See Section VII of this evaluation for discussion and resolution ofspecific technical issues raised.

Chan es in Qualit and En ineerin S ecificationIssues: Revisions to QA specification CG-P-Diesel;

Revisions to Engineering Specification; howwere these changes communicated to thesupplier (772/1065).

Resolution: First, this discussion will address the changes toAttachment A of the EMM, which is PG&E QA Specification SP-D-Peebles. SP-D-Peebles Revision 4 was written to incorporaterequirements for the performance of PG&E Audit 90197S. Thefollowing paragraphs were added to Revision 4 of the specification:

Section 4.2.8, the requirements for the identificationand control of materials and items

Section 4.2.9, the requirements for a test program toidentify and document all testing required to demonstratethat items will perform satisfactorily in service

Section 4.2.10, the requirements for the control ofmeasuring and test equipment.

Revision 5 of SP-D-Peebles was issued on ll/15/90. Thespecification was rewritten to clarify the organizations which hadto comply with SP-D-Peebles i.e. PEP, PEM). Revision 4 includedsections for both PEP (Cleveland) and PEM (Edinburgh). However,PG&E's contract was only with Cleveland. Also, revision 5 addedSection 4.2.6(1) for critical material, parts or components, whichwas inadvertently left out of Revision 4.

The requirements for critical items purchased as commercial gradewere part of PG&E's audit of PEP, since this issue resulted in PG&EAudit Finding Report 90-069 on Dedication Testing.

The remaining statements relate to the changes in EMM Attachment F,critical item listing, and the changes in the criticalcharacteristics for these items.

The fourteen critical items identified in EMM Revisions 1 and 2were determined by PG&E Electrical Engineering and PEP Engineering.This list was not intended to be all inclusive of the generatorcritical items, but rather was to encompass all items that could beprocured as commercial grade by PEP and consequently had to beverified by test.The list of twenty-seven critical items identified in EMM Revision3 were determined by PG&E, PEP, and PEM during PEP Audit 9003 ofPEM in Scotland. The list of twenty-seven components was intended

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2

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to identify all critical components of the generator assembly.

Although the final documentation of the list of twenty-sevencritical items did not occur until 1/28/91, this list was utilizedduring the performance of PEP Audit 9003 conducted October 8-12,1990.

Revision 1 of EMM DC2-3322-BRH-E dated 1/16/90 added Attachment F(critical components and their critical characteristics) fordedication testing of critical items within the scope of PEP

supply. Revision 3 of EMM DC2-3322-BRH-E dated 1/7/91 replaced thefirst Attachment F with a new listing of items and characteristics,which were to be used during the PEP audit of PEM. BetweenRevisions 1 and 3 of the EMM, changes in the description of thecritical characteristics of seven items were made. For example,critical characteristics of Lead Wires (Item 1) in Revision 1

included dielectric strength, number of strands, marking of cableand insulation thickness. In Revision 3, the word "configuration"was used for critical characteristics for Lead Wires (Item 16) toenvelop these attributes. Similarly, one of the criticalcharacteristics of the Insulator (Item 2, Revision 1/Item 22Revision 3) was changed to read "configuration" in place of "sizeand weight."

For all seven items, the word "configuration" was used to replacesome specified characteristics. This was done to identifycommonalities in the critical characteristics with respect to theirtreatment by the PEM QA program.

This PEM audit assessed the QA program with respect to componentsand their critical characteristics. The evaluation of theimplementation of PEM's QA program was performed for the criticalcharacteristics of configuration ,control since the genericterminology permitted a more comprehensive evaluation of thequality controls exercised by PEM.

Based on the PGSE compensatory actions outlined in RPE E-7505 andsatisfactory completion of the Pre-Operational Endurance Testing,PG&E concludes that the changes in the Quality and EngineeringSpecification do not impact the quality of the generator, or itsability to perform its intended safety function.

See Section VII of this evaluation for discussion and resolution ofspecific technical issues raised.

IEEE Standards in PG&E Purchase Order

Issue: IEEE Standards 323 and 344 not specified inPGSE purchase order (772).

Resolution: IEEE Standard 323, "Standard for Qualifying Class lEEquipment for Nuclear Power Generating Stations, describes the

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basic requirements for qualifying Class lE equipment and interfacesthat are to be used in nuclear generating stations. Therequirements presented include the principles, procedures andmethods of qualification." This standard was not imposed onPeebles for the sixth generator, since it is not exposed to a harshenvironment and does not require environmental qualification.

IEEE Standard 344, "Recommended practices for Seismic Qualificationof Class lE Equipment for Nuclear Power Generating Stations," wasnot imposed in the PG&E purchase order because the seismicevaluation of the sixth generator is being performed by PG&E notPEP.

Use of pEp Failure Modes and Effects FMEA Documentation

Issue: Use of PEP FMEA Documentation for jointdetermination of critical items andcharacteristics (772).

Resolution: Based on input from PEP, PG&E has reviewed the sameGeneric FMEA documentation addressed in the NRC Inspection report.The generic FMEA was written by PEP as part of its qualificationprogram. This qualitative analysis was written in accordance withthe methodology and intent of IEEE Standard 352-1975. PG&E did notrequire PEP to submit the generic FMEA documentation, 'since a fullqualification package was not required per our purchase order.Although this document is not part of the official qualificationpackage, the involvement of PG&E, PEP and PEM personnel in thedetermination of verification requirements provided the technicalknowledge necessary to evaluate generator components.

Based on the compensatory actions (See RPE E-7505) taken for theitems identified as critical, the functional testing performed bythe supplier, and the satisfactory completion of the Pre-Operational Endurance Testing and post test inspections, PG&Econcludes that the exclusion of the PEP Generic FMEA Document fromthe official Qualification package has no impact on the quality ofthe Sixth Generator or its ability to perform its intended safetyfunction.Subsu lier Evaluation

Issue: Adequacy of Subsupplier Evaluation; acceptanceof supplier certificates of conformance(772/1065).

Resolution: A common concern raised in the NRC Inspection Reportsfor this generator is the methods used to qualify commercial gradesuppliers. RPE E-7505 Attachment 4 provides the details of PG&Ecompensatory actions and justification of the adequacy of PEP andPEM's subsupplier qualifications.NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 47

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Based on the PG&E compensatory actions documented in RPE E-7505 forsubsupplier issues, the functional testing performed by thesupplier, and the satisfactory completion of the Pre-OperationalEndurance Testing and post test inspections, PG6E concludes thatsubsupplied components for the Sixth Diesel will perform theirintended safety function.

NEI PEEBLES NEMP l2.4 EVALUATION REVISION 2

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VII. ENGINEERING EVALUATION OF HARDWARE SPECIFIC TECHNICALISSUES RAISED IN INSPECTION REPORTS, MEETINGS ANDCORRESPONDENCE WITH NRC RELATIVE TO THE SIXTH GENERATORPURCHASE

Reference NRC Inspection Reports 50-323/91-202 (Sixth Diesel),99900772/91-01 (PEP), and 99901065/91-01 (PEM Scotland).

Rotor Pole Ma net Wire

Issue: Varnished verses unvarnished; verification ofmechanical strength, bend radius, thermalcapability of insulation (50-323/772/1065).

Resolution: For use of varnished verses unvarnished see Section V<Unresolved Item 1.

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Additional review of the characteristics of this wire with respectto that required by the PEP specification will be conducted inconjunction with the PEP review of the equivalency evaluationsalready performed.

Based on PG&E Compensatory Actions outlined in RPE E-7505;satisfactory completion of the supplier testing of the lightlyvarnished wire (E-7505 sheet 25 Limitation 3); satisfactoryresoluti'on of the equivalency of the wire (E-7505 sheet 25Limitation 2); the extensive factory testing by PEM; and thesatisfactory completion of the Pre-Operational Endurance testingand post test inspections, PG&E considers the magnet wire installedin the Sixth Generator acceptable for use in a safety relatedsystem.

Bakelite Electrical Se aration Rin for Bearin

Issue: Bakelite Electrical Separation Ring is apotentially load bearing component-part of therotor shaft support assembly (50-323/772/1065).

Resolution: Per input from PEP (Reference 31), "the bearinginsulation ring's function is to insulate the bearing housing fromthe bearing bracket in order to prevent circulating currents whichcan pit the bearing surface and eventually lead to bearing failure.This function is verified by a bearing insulation test per IEEE115-1983... The mechanical failure of the insulation has not beendeemed a credible failure mode. While we would agree that the ringis part of the support system of the bearing housing, due to thesandwich design, and lack of any known failure of this design, themechanical strength was not considered a critical designcharacteristic."Based on the discussion above; PG6E Compensatory Actions outlined

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in RPE E-7505; the extensive factory testing by PEM; and thesatisfactory'ompletion of the Pre-Operational Endurance testingand post test inspections, PG6E considers the Bearing BakeliteElectrical Separation Ring installed in the Sixth Generatoracceptable for use in a safety related system.

Sli Rin Mountin Sleeve Insulator

Issue: Not identified as a critical item (772).

Resolution: Per input from PEP (Reference 32) the generic FMEA forthe slip rings considered shorted slip rings as a failure mode.The cause being either an insulation breakdown or shorted sparkcap. The possible effect would be that the generator is unable toperform its function. Periodic checks or tests and propermaintenance are given as the methods of failure detection andaction to reduce occurrence.

The nominal field voltage is 125 volts DC. For this voltage, NEMAMG2-1977, "Safety Standard for Construction ... of Generators"lists a minimum spacing over a surface of 3/16 inches. By design,the minimum clearance over a surface in the slip ring assembly is5/8 inches. Therefore, a considerable design margin exists.Furthermore, periodic testing is specified in the maintenancemanual for this generator. This allows for the periodic testing ofthe rotor windings, which include the slip ring assembly, at 500volts DC using a megger. Thus the integrity of the insulating ringcan be monitored. The prime casual factor for an insulationfailure would be surface contamination combined with a moistenvironment. Good maintenance practices are the best assurance ofreliability.For the Sixth Diesel, Dedication by PEP of this component occurredby post assembly testing. During the manufacturer's test of thegenerator rotor, the insulator was subjected to a 1000 volt meggertest, where the insulation resistance was in excess of 1000 Megohmswhen hot. Also, it was hi-pot tested at 1500 volts for 72 seconds.The insulator also underwent testing in Toronto witnessed by PEPpersonnel (500 volt megger). This test was conducted at twice thenominal operating voltage.

Based on the discussion above; PG6E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Slip RingMounting Sleeve Insulator installed in the Sixth Generatoracceptable for use in a safety related system.

Resistance Tem erature Detectors

Issues: Not included in final critical item listing;material specification for the RTD's not

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provided; inadequate identification ofcritical characteristics (only size and shape)in original purchase order; PEM test recordsdid not indicate the expected values andtolerance, and the temperature at which theRTD resistance was measured; PEM receiptinspector not able to verify that the correctpart number was received (772/1065).

Resolution: Per input from PEP (Reference 32), the RTD's are non-critical in function. They are not critical to the generatorperformance.

The Stator RTD's provide information for use in trending theperformance of the generator. They are not used as an interlock toany safety system, nor do they provide information that theoperators can respond to during an emergency to preclude equipmentfailure.Regarding the testing of these instruments, PEM's resistancemeasurement is intended to ensure only that the RTD is of thecorrect type, i.e., 10 ohms and not one of the other standard type(100 ohms) .

Vibration Indicatin Devices

Issue: Vibration Indicating Devices'ot included incritical items list (772/1065).

Resolution: Vibration indicating devices are not part of thedesign of PG&E's Sixth Generator. Vibration monitoring isperformed periodically as a part of surveillance tests and alsoafter the machine has been exposed to,any unusual events, i.e.electrical transients.Insulators

Issue: Adequacy of PEP Dedication Activities, nocertificate for dielectric strength (772).

Resolution: As part of PEP's Dedication Evaluation, the dielectricstrength was verified by an insulation resistance test and foundacceptable. Reference PGSE Drawing DC 601194-8-1.

Insulation Materials

Issue: Adequacy of PEP Dedication Activities,verification of batch homogeneity (772).

Resolution: The thickness of the insulating material was specifiedas the critical characteristic and was verified. Verification ofthe other attributes (i.e. lot homogeneity of the insulation and

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material constituents) were not required since the thermal andelectrical characteristics of the insulating material were verifiedthrough extensive production test performed for the completed coilassemblies and also through the final performance test of thegenerator.

Based on the above discussion; the extensive factory testing byPEM; PG&E Compensatory Actions outlined in RPE E-7505; and thesatisfactory completion of the Pre-Operational Endurance testingand post test inspections, PG&E considers the Insulation Materials(Mica Paper Tape and Wrapper) installed in the Sixth Generatoracceptable for use in a safety related system. Nl

Insulatin Bushin s

Issue: Adequacy of PEP Dedication Activities,verification of dielectric strength orconcentricity (772).

Resolution: Dielectric strength was not considered as criticalcharacteristics by both PG&E and PEP.

The shape and size (configuration) were identified as the criticalcharacteristics and verified by PEP. The function of theinsulating bushing is to provide mechanical protection of theinsulated lead wires. Based on this function, the dielectricstrength and concentricity are not critical to the bushingsperformance.

PG&E considers the Insulating Bushings installed in the SixthGenerator acceptable for use in a safety related system.

Bearin Seal

Issue: Adequacy of PEP Dedication Activities, weightchanges due to felt porosity (772).

Resolution: The critical characteristics identified were thicknessand shape (configuration) and texture. Since the part numberspecified for the bearing seals identified a specific S.A.E grade,by checking the configuration and texture, reasonable assurance wasobtained that the felt would perform its function. PG&E considersthe weight and porosity to be verified by the texture inspection.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Bearing Sealinstalled in the Sixth Generator acceptable for use in a safetyrelated system.

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Brushes

Issue: Adequacy of PEP Dedication Activities,material of brush, wire lead size and type,terminal connections, electrical resistance(772).

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Resolution: pG&E identified the critical characteristics as size<shape, final generator test to verify resistance, material andcontact pressure and these were verified by PEP. Lack ofverification by PEP of the (1) material constituents, (2) wire leadsize or type, (3) wire lead terminal connections, and (4)electrical resistance , which were not identified, did notcompromise the performance quality of the component. PG&E'sacceptance criteria adequately covers the overall performancequality of the component.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Brushesinstalled in the Sixth Generator acceptable for use in a safetyrelated system.

Brush Holders

Issue: Adequacy of PEP Dedication Activities, springtension (772).

Resolution: PG&E identified the critical characteristics asconfiguration and this was verified by PEP. Lack of verification byPEP of the spring tension does not compromise the performancequality -of the component. The proper tension is verified by thefunctional testing of the generator and periodic maintenance.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Brush Holdersinstalled in the Sixth Generator acceptable for use in a safetyrelated system.

S audite Bakelite C linder Bushin for Brush Holder

Issue: Technical and quality requirements for thecylinder that insulates the brush holder fromthe generator frame (772).

Resolution: Configuration was identified as the criticalcharacteristic for the Brush Holder assembly and was verified byPEP. Lack of verification of the Spaudite Bakelite Cylinder thatfits over the brush holder stud and functions as the insulator for

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 53

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electrical separation between the brush holder and the generatorframe does not compromise the performance or quality of thecomponents. Physical inspection of the configuration is adequatesince the since the final performance tests of the generatorprovide for the verification of the integrity of the brush holderassembly.

Based on the above discussion; PGSE Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; and

.the satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PGsE considers the Brush HolderBushing installed in the Sixth Generator acceptable for use in asafety related system.

Current Transformer

Issue: Adequacy of PEP Dedication Activities, supplycurrent, ratio of primary to secondary (772).

Resolution: PGsE identified the critical characteristics asconfiguration(size, weight), mounting, insulation resistance andcontinuity and these were verified by PEP. The acceptance criterionfor the dielectric strength of the current transformer was notrequired to be obtained from the manufacturer. Also the electricalcharacteristics of the current transformer, i.e., load, ratio werenot required to be verified. Since the current transformer wasspecified by a specific catalog number (General Electric JCB-3,Catalog Number 753X21G8), the electrical characteristics (i.e.load/burden, ratio, dielectric strength) are included in theverification process.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PGsE considers the CurrentTransformer installed in the Sixth Generator acceptable for use ina safety related system.

Current Transformer Test Switch

Issue: Adequacy of PEP Dedication Activities,certification of dielectric strength (772).

Resolution: As part of the PEP Dedication Evaluation, dielectricstrength was verified by and insulation resistance test and foundacceptable. Reference PGaE Drawing DC 6011924-5-1.

Sli Rin s

Issue: Documentation of PEP Dedication Activities(772). C

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Resolution: The Slip Ring Assembly was supplied by PEP. PEP

inspected the slip rings in a manner commensurate with the originalquality control measures and received the rings with a certificateof conformance. The critical characteristics .and functionality ofthe slip rings were verified during the factory testing of thegenerator performed by PEM.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Slip Ringsinstalled in the Sixth Generator acceptable for use in a safetyrelated system.

Adhesive

Issue: Documentation of Dedication Activities (772).

Resolution: Per input from PEP, they do not perform any specialtesting of this product for the following reasons:

In addition to the adhesive, clamps are installed between thepoles to ensure that the copper rotor winding is held inposition. Even if the rotor winding did delaminate it would notresult in an immediate failure.When the final tests on the generator are performed, the rotoris run at 25% overspeed. During this test, the adhesive issubjected to forces well above any it will experience in itsdesigned duty.

PG&E identified the critical characteristics as material. Theacceptability of the epoxy material is based on independent testingperformed by PG&E. RPE E-7505 Attachment 4 documents thiscompensatory action.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting, PG&E considers the Adhesive installed in the SixthGenerator acceptable for use in a safety related system.

Connections and Terminations

Issues:

For the Lead to Coil terminations, PEM failed to document(1) qualification of the brazing materials and methodsused, (2) inspection of the brazed -joints, or (3)verification that the joints were adequate and metexpected quality and technical requirements

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Brazed Connections: PEM did not establish a documentedprocedure to control the high-temperature silver-solderbrazing operation

Overlapped compression joints: PEM failed to documentobjective evidence of an inspection to ensure that thejoints made during fabrication were adequate and metexpected quality and technical requirements

Crimped joints: PEM did not establish a documentedprocedure to control the crimped joints that connect thecable leads to ring-tongue terminal lugs that form boltedconnections (1) at the terminal box for the cable leadsthat run from the stator's parallel rings, (2) at theslip-ring assembly for the cable leads that run along therotor shaft from the rotor poles, and (3) at the brush-rigging assembly and the field terminal box for the cableleads that connect those two items; PEM failed todocument objective evidence of its inspection orverification of the crimped joints to ensure that thejoints were adequate and met expected quality andtechnical requirements (772/1065).

Resolution:

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All joints in the stator winding are compression joints.The field coil to the field lead on the rotor is soldered andthe field lead to slip ring is a compression terminal boltedto the slip ring.No low temperature brazing using silver alloys was used oneither winding.The PG&E identified critical characteristics of brazing andweld materials for lead to coil termination are not applicableto either winding.The PEM Shop Engineering Standard R6103, issued on January 28,1992, documents procedure for soldering field connections ofthe rotor winding.The compression jointing within both the stator and rotorwindings is covered by R4100 (Design Selection) and R6081(Shop Operation). Per input from PEP (Reference 32),Procedure R6081 was written as a corrective action to PEP/PG&Efinding 9003-5. It was issued in November 1990, and was inforce for the manufacture of PG&E's generator. Based onfurther PG&E input, the procedure was revised in April 1991 toclarify the method of evaluating trial joints. See RPE E-7505Attachment 2 for Source Inspection Activities conducted byPG&E to verify the crimped connections on the Sixth Generator.

Based on the above discussion; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers all Connections

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and Termination in the Sixth Generator acceptable for use in asafety related system.

Lead Wire

Issue: Adequacy of wire used for DC brush to terminalbox lead (amperage) (1065).

Resolution: Per PEP input (Reference 32), the use of the 16 mm 2

cable was authorized by PEP for the DC field leads.

Per input from PEM:

There are three different cables used in the generatorconstruction — stator leads, field leads (coil to coil andcoil to slip ring) and dc leads from brush to terminal box.

2. Material Substitutions 11397 and 11415, both approved by PEP,give PEM authority to use the stator leads and field leads,respectively (copy of the two documents are attached to thePEM letter). PEM has no authority for use of the dc leadwire.

3. PEM has assumed that the lead wire of Critical Items inRevision 1 of PG&E's PO to PEP referred to stator leads. PEMhas attached to their letter a copy of the C of C and testreport covering critical characteristics as required by PG&E.

PG&E concurs with PEM that the lead wire identified by PG&E as acritical item is the stator lead for which PEM has documented andverified the critical characteristics. The suitability of theother two leads (field leads and dc leads) has been demonstrated infunctional testing performed by GE Locomotives in Toronto.Additional 200-hour endurance test to be performed by PG&E willprovide further demonstration.

Per discussion with PEP, a request for approval of the DC brush toterminal box leads was requested and approved by telecopy dated May1990. This has not, however, been documented in an equivalencyreview. An equivalency review will be performed in conjunctionwith the further PEP reviews of all equivalency evaluations forPG&E's Sixth Generator (E-7505 sheet 25 Limitation 2).

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the satisfactory completion of the equivalencyreview; the extensive factory testing performed by PEM; and thesatisfactory completion of the Pre-Operational Endurance testingand post test inspections, PG&E considers the Lead Wire installedin the Sixth Generator acceptable for use in a safety relatedsystem.

Roller Bearin

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Issue: Use of a bearing with a steel verses a forgedcage (1065).

4.Resolution: Per PEP input (Reference 32), the bearing cage is nota load bearing member and many different materials can and are usedas cage materials in bearings. Per PEM, the equivalency of thebearing cage was determined based upon dimensional and load bearingcriteria. This equivalency will be documented during theadditional reviews to be performed by PEP (E-7505 sheet 25Limitation 2) .

Based on the discussion above; PGaE Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PGsE considers the RollerBearing installed in the Sixth Generator acceptable for use in asafety related system.

Rotor Shaft

Issues:

3.

Basis or rationale for ordering the generator's rotorshaft to a material specification intended for turbinerotors and shafts (ASTM A-470) as opposed to the materialspecification for generator rotors (ASTM A-469);

Necessity to determine the rotor shafts permeability;

PG&E identified integrity as a critical characteristic ofthe rotor shaft, PEM did not perform a magnetic particle(MT) examination, which would detect thesediscontinuities, even though certain conditions peculiarto forgings require the use of more than one NDE methodto provide reasonable assurance of the integrity of therotor shaft forging (1065).

Resolution: Per input from PEM:(

1. The shaft was ordered to comply with the PO to PEM from PEPwith Material Specification MS-70.42 complying with ASTM A-470, Class 1. PEM Drawing B-67405-1 included this informationtogether with BS 970-080-M40. A-470 Class 1 is regarded byPEM as equivalent to this British Standard. PEM did notobtain approval from PEP on this equivalency determination.

2 ~ Permeability testing would only be relevant for a rotorforging which is required to carry significant magnetic flux.This is not the case with a multipole generator having aseparate laminated pole mounting hub.

Per input from PEP (Reference 32), MS 70.42 specification called

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 58

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for steel to ASTM A470 for shaft material. There are two generaltypes of field construction, salient pole and non-salient pole.Large high speed machines, like those of the turbine-generators arenon-salient pole, with the pole slots milled into a solid shaft forthe field windings. For non-salient poles the machine designorganization would be interested in magnetic permeability cited bythe NRC report. The PG&E emergency generators are salient poledesign and the magnetic permeability of the shaft is not ofinterest.

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NON SALIENT POLE

Based on the discussion above; PG6E Compensatory Actions outlinedin RPE E-7505: satisfactory completion of the documentation of PEPequivalency reviews (see RPE E-7505 sheet 25 Limitation 2); theextensive factory testing performed by PEM; and the satisfactorycompletion of the Pre-Operational Endurance testing and post testinspections, PG&E considers the Rotor Shaft installed in the SixthGenerator acceptable for use in a safety related system.

Stam in s, Stator

Issue: Stator Core losses; certification of chemicalcomposition and insulation resistivity (1065).

Resolution: Per input from PEP (Reference 32), the maximumallowable Stator core losses are 3.05 w/kg = 1.38 w/lb. The PEPmaterial specification MS 70.77 for electrical sheet steel allowedfor losses as high as 1.97 w/lb (Losses of 1.85 to 1.97 w/lb weresubject to engineering review).

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Stator CoreStampings installed in the Sixth Generator acceptable for use in asafety related system.

Stam in s, Rotor

Issue: Certification of chemical composition (1065).

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 59

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Resolution: Per input from PEP (Reference 32), the inspectionsheet for the rotor pole indicated that the material was accepted.The pole steel is not subject to the same loss consideration as thestator steel. This was reflected in PEP MS 70.38 specification,where, besides mechanical properties, the DC permeability isspecified. The tensiloy 250 was selected based on its greatermechanical properties and greater DC permeability. The test dataexceeds the guaranteed minimum requirements'or this material.

~ Per PEM the supplier certificate did not include chemicalcomposition. However, the real properties which requireverification are mechanical properties and dc permeability, both ofwhich a certificate was provided.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PGSE considers the Rotor PoleStampings installed in the Sixth Generator acceptable for use in asafety related system.

Stator Coils

Issue: Adequacy of critical characteristics of thestator coils as configuration, chemicalcomposition, without specifying particularsfor the latter two; certification of the wirechemical composition or the insulationresistivity (1065).

Resolution: Per input from PEM, although there was no documentedbasxs for acceptance of the certificates of conformance, thegenerator was successfully tested to demonstrate adequacy of thegenerator construction. ISM supplied a shipping notice indicatingthat the stator coils are per specification of NEMA Standard MW

1000. This standard covers magnet wires. This, in conjunction withthe hi-pot testing performed during the factory test at PEMprovides assurance that the stator coil composition meets designrequirements.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Stator Coilsinstalled in the Sixth Generator acceptable for use in a safetyrelated system.

Bearin Bracket

Issue: Certification of material or the fabricationof the insulation ring; documentation ofreceipt inspection; NDE of the continuous

~ NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 60

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fillet welds that form critical load-bearingmembers of the support assembly of thebearing-end of the rotor shaft; engineeringbasis for the design of the insulation ring incombination with the mounting ring of thebearing bracket hub, which used the insulationring as a load-bearing component part of thesupport assembly of the bearing end of therotor shaft (1065).

Resolution: PG&E will perform visual inspections of the bracketafter completion of the 200-hour endurance test to confirm adequacyof its structural integrity.Based on PG&E Compensatory Actions outlined in RPE E-7505; theextensive factory testing performed by PEM; and the satisfactorycompletion of the Pre-Operational Endurance testing and post testinspections, PG&E considers the Bearing Bracket installed in theSixth Generator acceptable for use in a safety related system.

Brush-Ri in Mountin Tube Insulator

Issue: The tube insulator was a critical item, eventhough no critical characteristics wereidentified'by either PG&E or PEP and PEM didnot perform any dedication activities toensure that the tube insulator met expectedquality and technical requirements (1065).

Resolution: This insulator is considered to be critical to theextent that it supports the voltage difference of the DC fieldcircuit, rated for 103.5 volts. Its functionality is verified by

'unctional testing of the machine to IEEE 115. The stresses ofoperation under a design base event are essentially the same asthose under normal operations. The insulation integrity of theBakelite material will be verified by insulation resistancemeasurement using 500 volts DC after the endurance testing.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Brush-RiggingMounting Tube Insulator installed in the Sixth Generator acceptablefor use in a safety related system.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 61

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Threaded Rod for S ider Assembl

Issue: Certification of iy eld or tensile strengthvalues for the material; technical basis tosupport material equivalency; specification ofmaterial for nuts; objective evidence of itsinspection or verification of (1) the torquepressure applied to the nut to compress thespider stamping assembly and (2) the tackwelds that joined the nuts to the threadedstuds (1065).

Resolution: See Section III and Attachment B of this Evaluationfor PG&E's evaluation of the Threaded Rod and nut material.

Regarding documented evidence of verification of the torquepressure applied to the nuts to compress the spider stampingassembly and the tack welds that joined the nuts to the threadedstuds, PEP stated that the threaded rod studs serve as an assemblyaid in aligning the rotor steel stampings. Once the rotor spiderassemblies are installed in the rotor shaft, the rods are notconsidered to be a critical item.

Based on the above discussion; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Threaded Rodinstalled in the Sixth Generator acceptable for use in a safetyrelated system.

S ider End Rin s

Issue: NDE or visual inspection of the mounting-lugattachment welds, which form the criticalload-bearing members of the support assemblyfor the generator's fan assembly (1065).

Resolution: The stresses induced in the spider end rings duringthe manufacturer's functional testing exceed those seen duringnormal operation, and therefore provide the basis for acceptance ofthe subject welds.

Based on the discussion above; PG&E Compensatory Actions outlinedin RPE E-7505; the extensive factory testing performed by PEM; andthe satisfactory completion of the Pre-Operational Endurancetesting and post test inspections, PG&E considers the Spider EndRings installed in the Sixth Generator acceptable for use in asafety related system.

Rivets

Issue: NDE examination of the groove welds that

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attach the rivets to the head ring of thespider end ring assemblies, which form load-bearing members of the support assembly forthe generator's fan assembly (1065).

Resolution: The stresses induced in the rivets during themanufacturer's functional testing exceed those seen during normaloperation, and therefore provide the basis for acceptance of thesubject welds.

Based on discussion above; PG&E Compensatory Actions outlined inRPE E-7505; the extensive factory testing performed by PEM; and thesatisfactory completion of the Pre-Operational Endurance testingand post test inspections, PG&E considers the Rivets installed inthe Sixth Generator acceptable for use in a safety related system.

Stator Frame

Issue: Verification of length and pitch of theincrements of intermittent fillet welds thatjoin structural members; design changes fromthe original drawing (1065).

Resolution: A detailed comparison of the design and equivalency ofthe original and new stator frame will be performed.

Based on PG&E Compensatory Actions outlined in RPE E-7505:satisfactory completion of the documentation of PEP design changesand equivalency reviews (see RPE E-7505 sheet 25 Limitations 1 and2); and the satisfactory completion of the Pre-OperationalEndurance testing and post test inspections, PG&E considers theStator Frame installed in the Sixth Generator acceptable for use ina safety related system.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 63

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VIII.SUMMARYOF ENGINEERING AND QUALITY ASSURANCE DOCUMENTS FORTHE QUALIFICATION OF THE SIXTH GENERATOR

A. EMM DC2-3322-BRH-E Revision 0 issued 1/5/90 invoked SP-D-Peebles Revision 3 and did not include an Attachment Ffor critical items.

B. EMM DC2-3322-BRH-E Revision 1 issued 1/16/90 invoked SP-D-Peebles Revision 3 and added Attachment F, whichidentified the following critical items:

1.2.3.4 ~

5.6.7.

Lead Wire 8.Insulators 9.Insulating Bushings 10.Magnet Wire 11.Insulating Material 12.Bearing Seals 13.Brushes and Brush Holders 14.

Stator RTD'sCT's and Test SwitchCopper Bus, terminal BoxLead to coil TerminationBearingsShaft/CastingStator and Rotor Core

C. EMM DC2-3322-BRH-E Revision 2 issued 2/12/90 invoked SP-D-Peebles Revision 3 and the same Attachment F criticalitems as EMM Revision 1. Note that EMM Revision 2 wasissued to request additional information for PGSE'sseismic analysis.

D. EMM DC2-3322-BRH-E Revision 3 issued 1/28/91 invoked SP-D-Peebles Revision 5 and a new Attachment F, whichidentified the following critical items:

1. Rotor shaft2. Stampings3. Magnet Wire4. Bearing Bracket5. Stud/Threaded Rod6. Roller Bearing7. Spider End Rings8. Pole End Rings9. Short Circuit Bars

10. Pole Head11. Tapered Keys12. Rotor Wedge13. Rivets14. Insulating Washers

15.16.17.18.19.20.'1.

22'3

'4.

25.26.27

'tatorCoils

Lead WiresSlip RingsStator FrameBrush HolderBrushCurrent TransformerInsulatorBearing SealBushing InsulatorCT Test SwitchInsulationAdhesives

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 64

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E. PG&E Audit 89180S was conducted 7/11-12/89 of PEP toqualify them to provide spare emergency generators forDCPP in accordance with specification SP-D-PeeblesRevision 3. The results of the audit indicated twodeficiencies in their QA program:

1. PEP's audit of PEM lacked objectiveevidence.

2. Lead auditor qualification recordincorrect.

F.

PEP was not placed on PG&E's QSL.

PG&E Audit 89214S was conducted 8/28-30/90 of PEM torequalify them to provide spare emergency generators forDCPP in accordance with specification SP-D-PeeblesRevision 2, and BS 5750 parts 1, 2, and 3. The resultsof the audit indicated three deficiencies in the QAprogram:

1. No proceduralized interface to procurematerial from PEP.

2. No quality record list specifyingretention times.

3. Retrievability of records.

PEM remained on PG&E's QSL, however theirscope was changed to commercial grade.

G. PG&E Audit 89295S was conducted 12/ll/89 of PEP toqualify them to provide spare emergency generators forDCPP in accordance with specification SP-D Peebles,Revision 4. The results of the audit indicated threedeficiencies in their QA program:

1. Drawing card file not up to date.2. Some QA procedures not reviewed and

approved.3. Internal audits not performed as required.

PEP placed on PG&E's QSL.

H. PG&E Audit 90197S was conducted 8/15-17/90 to verifyimplementation of their QA program for PG&E purchases forDCPP in accordance with specification SP-D-Peebles,Revision 4. The results of the audit indicated sixdeficiencies in their QA program:

1. Procurement/commercial grade dedication.2. Test control.3. Audits.4. Measuring and test equipment.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 65

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5. Design control.6. Quality Assurance records.

PEP removed from PG&E's QSL.

PG&E auditing, technical specialists and managementpersonnel participated in PEP's Audit 9003 of PEM

conducted 10/8-12/90 to verify implementation of PEM'squality program in accordance with BS 5750 part 2 forPG&E P.O. ZS-1539-AB-9 (6th emergency generator). Theresults of the audit indicated six deficiencies in theirquality program:

1. Procurement control.2. Inspection, measuring and test equipment.3. Receiving inspection documentation.4. No procedure describing the PEP/PEM design

interface; drawing document control.5. Inadequate crimping procedure.6. No documentation of equivalency evaluation

of PEM verses PEP procedures andspecifications.

Follow up visits were made to PEP by PG&E QA andengineering personnel on 3/12-13 and 7/30-31/91 and allfindings from audits 90197S and 9003 were consideredsatisfactorily resolved for the one time purchase of the6th generator.

NEI PEEBLES NEMP 12.4 EVALUATION REVISION 2 66

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ATTACHMENT A

PRODUCT PERFORMANCE DOCUMENTATION

1. NPRDS REPORT

2. 10 CFR 21 NOTIFICATION FROM PEEBLESDATED NOVEMBER 24, 1986 — ARIZONAPOWERS PALO VERDE UNIT 3

3. ARIZONA POWERS PALO VERDE LETTER TONRC DATED FEBRUARY 5r 1987DEFICIENCY EVALUATION FOR 10 CFR 21

4. GULF STATES UTILITIES LETTER TO NRCDATED NOVEMBER 16, 1987 — 10 CFR 21REPORT ON GENERATOR DEFECT

PG 2

PG 33

PG 63

PG 69

5. ARIZONA POWERS PALO VERDE LETTER TONRC DATED JULY 8g 1988 — FINAL REPORTADDRESSING FOUR GENERATOR DEFICIENCIES PG 72

6. IMO DELAVAL LETTER TO NRC DATEDDECEMBER 3, 1988 — NOTIFICATION OFPOTENTIAL SAFETY HAZARDS RELATED TOGENERATOR(Not attached, not reproducible)

7. 10 CFR NOTIFICATION FROM PEEBLES DATEDJANUARY 4, 1991 — GEORGIA POWERS VOGTLEPLANT (Not Attached, PG&E CHRON 172309)

8. SUMMARY OF INDUSTRY DOCUMENTS REVIEWED PG 83

9. PG&E SAFETY REVIEW EVENT FOLLOWER 80-028(Not Attached)

10. PG&E SAFETY REVIEW EVENT FOLLOWER 85-136(Not Attached)

ll. PG&E SAFETY REVIEW EVENT FOLLOWER 86-054(Not Attached)

12. LICENSEE EVENT REPORT 90-012-01

13. GIDEP SEARCH

PG 90

PG 103

PEEBLES NEMP 12.4 REVISION 2(

103 PAGES

ATTACHMENT A PAGE 1

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Is«ls 1890..I%I ICauses TS«: CAUSE OF fHE FAILIXIKNAS OLR TO A IRHCT19% RKICITK SATK ~

FIRIHO SSDDIX.E . THIS SKIDIX.K 18 4 PIECK PSIRT OF YlK EXCITKR CIRCU'IT ~

fsw. Cnl«T. UF TIE REIIOTE FIRII«I IKIDII.KFAILI«IE tS t«e(NONN ~

hrtsuns REPLACED TI% DEFECTIVE REHOTK FIRIHO ISODI«.E NITH LIKE HIIKI FRISINARFIIOIP~X STOCY ~ PERFORIKD SIÃIVEILLAIKXSATISFACftÃIILY ~ SNRI RETlÃttKDII IO SERVICE ~

OPCANV2 08%Rh 22«0504001001

Appl I KPOEDesc s Eeergency Oeneretor

DOs 02/nl/90FSs 02/01/90

~ ID s 06/ I?/90

Systees KEB <eergency Posser-NUtl Syss i05

Nlrs Pnfb —Parsons Peebles Elect Prnd lncNod IasaS L-tllt7

ssod lds

Descs THE Et%ROEHCY DIESEL IKIBOtATOIt NREM I«IT PICK~ LOAD N% Tttl LISIEXCIT4f'ION DURINO THE PERFRONASSCK OF THE ISDHTSB.Y SIÃIVEILLANCE ~ THISChtt,lÃll N/dl rnUND BY PLANT RPERATISIS AND HAD HO SIGNIFICANT EFFECT TOPl.nNI U!AS!rl . I HNI!e rn.a7n?Ri I

Causes II«: CAUSE OF II«', rhlLURC NAS Ola TO 4 OEFKCTlVE RKHOTK FtRlHOS«IDIILE NSIICH 18 h I'IECC PARf (K TIK EXI,ITER CIRCUIT ~ THE CNPM OF THEhf.sslfl' IIIII«1 NODIX E F4ILURE 10 Ieef«lses ~

hrl semess RCCLACCD CIK DEFECTIVE REIKITK FIRIIKI IKIDILE NITH LIKE KIND FROSI

NnntHOUSE STOCK ~ PERFORt%D SURVEILLANCE ~ AND RETl%5%0 IT TO SERVICE

Page 138: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

0

Page 139: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

sessone AaI

)Asc)eer Plant hei teblt ity Date Systee Fel lure Brief Iteport Ru Detes 12/In<coJob Nuebers 5018

I

o Unit Coep Utillty Coeponent ld Dates Nerf'e Iives

, DPCCNS I SCION EPCOE4

hopis EPCKDescs Eeergency Seneretor

Dos oe/ll/Ahrss 0S/nv/ff6IDs ne/22/BB

Hfrs pn7IS - persons peeblee Elect Prod IncHnd Nues

Hod Id s

Systees EEB <eers)ency Posser-HUtl Syss KPC

Descs 4 t.OSS OC OENER4TOR F')EI.D HAB EXPII%lCEO DPI)lb) SCS%0)REDOrrRARILIIV fESf INO Of'IESEL ENQ)HE IA ~ LOSS OF BVBTESS RKDINOAHCV ~Nsf r.frrcf ON rLANI

Cense s flsssKE OIL)I:ON COHTROLLKD RECTIC)KRS ANO ISC b)ODE HAD Fa)LKD IHOKNKAATOA CONTROL I assEL . ACTUAL CAUSE Or ra)LURES ssaS NOT DETEAHtmo

Act lnns AKFLACFD RKCTIF)'EAS AND DIODE ~ PKRFON%D FINCTIONAL TEST AHDRKIURNKO DIESEL OKtKAAIOR TO SERVtCE ~ BR 5 / 11 / 86 I EOL

OPCASSVI )CHTAL )2i05oi002801R

Appl s

Oese s

DOS 07/ IO/sfnFS ~ 07/IV/WPIDI 07/24/90

Systesss EEb -Keeroency PosserWUtl Gyss 2405

ttfrs P076 - Persons Peeb)ee Elect Prod IncHnd Nues 12-1'2500-100

Hnd lds

Desr. ~ EHKAOENCY DIFSEL 4%l%8ATtbt T)IAIN ebe IIVARS SH)HS CRIB)arPADX)HA)FLY ~~ TO 6s~ CVARS 4T FILL LDAD AHO THE AHFS SHINS Clt)%)abOUI eon 'IO 12nn ASKS ~ THIS FAILIIIENAS FOIPSO Dt&fSAI TIK PEAFOAHANCEUs 4 RjAVr)LLANLK'IEST AN) HAD IR) 8)OH)F)CANT EFFECT TO PLAHT ST4TUS ~

Ceusrs INVf5f)OAflONRt VEAI.'ED THAT Yl% CAUSE OF Tl% Fa)LURE HAS DLK TO ADFFFCTIVK VOLTAAK AEON ATDA ~ THE C4UBE OF THK VIX.TAOE AKOIA.ATORFAILICSK IS IINS'SSS)ISN I PARS%I PEESLKS ELECTRIC PRODUCTS PAAT ~7"-) .nnn ~ lnts

as t In s ArfLACKD DKCECTIVE VOLTAOK SESLLATO)t il)TH L)l!K It)HD C)ttbtNAAESSOIISK IISS:V ~ RAH IIIESEL 4ND VEIllFIKO CORRECT IIVSbt ANO AtestNolca) IDN AND AKTURtKD IT To BEI)vlcE ~ I tesoe is)005550 )

le%tee 2 )cNTIIL 2ESB IEBI-vR

ApplsDeK I

DDI 09/)n/VnrSs nn/50/WnIDI tt/te/Vn

Hfrs P07b - Persons Peeb)ee Elect Prod IncHnd Nsses 72 12500 )nts

Hud Id I

Systees EE4 Weeroency Posser-OEUtl Cyst EOS

DrSrS NITH 'fib Iel)T SNIT Do)et FOR 4 REFlkl)IB) $)TASK ~ T% D)VIS)II ISTANDBY EHEROFNCY DIKSEL OEI+RATIN OUTPUT VIS.TASK ~ CIKLD CINE)ITFaA ExcKKoio CxPKCTEO OPEAAY)NB vALUKB~ THE o)EBKL NAS SfaatKOAr ISA HA)OR HA)NIENANCF. Hao SEEN PEAFOAHKp . THIS DKORADED na(srKAAAILIIYUr THE DIESEL, HHKVKR THE PLANT NAS HOT SISNICICAHTLVAS f Ccfto ~

Cesrsrs tt l,t:TRICAL HA)HTKNANCE PKRSISAKl. COWD Df)tTY CNBIKCTIOHb OH TfKUlao SIDF. Or Tsfb POTENTIAL TRAHSFOAssEItb I 4SSOC14TKD DEVICE I AND HAYSSAVF. lAIPKD tsao SENSINSS Or VOLTAOC RK4OINBS ~ THE AUTO VOLTA%ArfsN.ATDA NAS I OUND OFI ECTIVE Dt's)NO IHE PROCESS OF TAOUSLESHOOTIHO ~

11IIC IIAC Nslf THE CAUM'F THE I 4)LURE ~

Act IIess rI.FCIR)t.at. HAINIFNAHCE PKRSOSOKL REPI ACED T$% VOLTAOE RKQIAATIÃtNf fst nN IlstNfII:At. Cs AAE e fHE LtlAD II!DE POINTS OF 'fHE FOTKNTIALIs AN.4ssnse I< Ie'At.. CLCAIA:0 tHE DIKSEL NAS SUCCESSFIALY TESTED AHD HASIst ISXste'0 lo SLAVICE I NA et70$ 05 ) ~

Page 140: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson
Page 141: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

I

f lese00aaa Iaeclear Plant Rellabl Illy Data Syslee - Failure Srt ~ I Report Run Dates 12/10/eoJob Huebere 5018

Unit Coep UtlI lty Coeponent ldIeesee'2 IcNTRL 2KossEDI -vR

appl e

Dasc e

Dates

DDe 03/12/ReFBe OX/ne/89IDe 11/ID/sn

Htrs P07b Parsons Peebles Klect Prod IncNnd Huae 72 12500 100

seed lde

Harratlvee

Dese,e NITH THE UNIT IN CN.D ISEJTONAI ~ ~TI(NH PERSNeCL NERKPKRFORHIHO A SUseVEILLANCE TEST tW Tl% DIVISIlts 1 DIESEL ~RATISI I+OHfIIVY Keer(llleeftnfD AN OVKRVN.TMK CIW)ITINI4T TIP OUTPUT TERIIINALS ~

Causre fleK rntFK Or tltK FAILURE HAS DETKRHIHKD TO SE ERRATIC SEHAVIORTIIK VOI.TASK RFOUL4TOR ~

ACt teens eeet. AUftWATIC VOLTAGE IIURLATIXtNM,REJILACEO AND DIESELnKHKRattlR NJff'Uf VOLTAGE HA8 VERIFIED TO SE APPROPRI4TE o I ISI 14W2bI I

Systees EE4 -EeerOency Poeeer-OEUtl Syse KOS

Arspav I IcNTIIL 1 JDD4802%7vRS

4ppl IDesc I

DDs 11/25/87FS ~ II/ IV/87IOe Ob/ID/90

Ntrs P07b - Parsons Peebles Elect Prod lncNod Nues 7212201100

leod Id s

Desce NXIINO LOAD TESTIIEI OF EI%ltSEIKY ~TOR ~ 8EIKNITISI 1K'OFULL LOAtl IRlf fJF COHTRN.

CauSre CAIJSC Or FAILIJRK DETERNI~ Tb SE 4 DEFECTIVE DIWL ~TtSI ''OLTAGE RKOQ.ATNt 'MIDGE SELECTDR SIIITCH I IESSIKPORTASLE COPO%HKNTSNIT(:It "Sl" OH VFHDOR PRINT 8018-1$ 7 ) ~ 8U8PECT HORHAL / CYCLIC

eeEnet ~

Act tease SKI.KCTOR SNITCH NAS REPLACED IN) TEST IIISI OF OEIKRATQt HASPKRFORIeCD . I 002btbb7 I

Systeee EED EMrffency Poeeer CEUtl Syss DO

APSP4VI ICNTIIL 1JOOS80290VR

appl sDe scs

DDI 12/03/OOFSI ll/18/09IDs Ob/2 /S0

Nfr ~ P07b - Parsons Peebln Elect Prod Incleod Nues 7212201100

Nod t de

Systeee EED <sergeancy Poller-CEIIII Syse DO

Descs NXIIHO SIXIVIELL4NXTESTIISI ~ DID'TOR s8 VN.TNKRKNX.ATDA NNJLD OM.Y CRK4TE d 50OVAC NAXIIKN I DESISN 18 TO INCIIEASE TOahnnVAC I ~ THK UNIT ISAS IH AaREFLKLIHO NJ~ ~

Cause e 'fllE VOLTAIS.'EOIJLATOR PRE~ITIDH SOARD RKLAY AIO INTKSRATKDCIRCUIT I IC I CHIP IIKRE FOtpeD TO SE DEFECTIVE ~ SUSPECT CAU9E OF DOTHI nt«enLO NAO HOnfeat. COI«mHT NEAR / AOIHS . CAISJE UIANONN .

Actlnnl TIIE DEFECTIVE POf TKR-Sat%%'IKLD RELAY AND IC CHIP IKRKRfeeOVKD AHD RKI1.ACED ~ %%VIELLAtCX TESTS HERE SUCCESSFULLY UTILIZED45 RETFST IHO, I 0e!L'JSXDSPCN I

Page 142: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson
Page 143: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NFRFiO h AAs

Huctesr Pfent Rei thfst i ity D«th Syetre - Fet lure Srief Report Run Dates 12/10/s)0Job Nussber s 5018

Un I t~ AfM'AVI

appl ~

De pcs

Coco Utill ty Coeponent ld

IcNTRI. IJ Dofsfsn2oovR

Datei

DDs 12/li/n/FS ~ I I/77/f11fnS 06/SD/OSs

Ssfrs P07b per«one Peebtes Elect Prod IncSfucl fase S 72122011<W

Isod Id s

Ilyiteos EED Eeers)ency Poaser-CEtfll Syis DO

Nhrrht lve iDs ic s I S%:RS1EHCy DIFSFL OENFR4TOR HAD 4 FLUCTUATIH8 LEADIN8 POSSER FACTOR

sssls os:ct«>ED IN«sff«I sf.sf FDLLossIHo TfsE PARRALLELI&)0F THE DENER4TDRfff ISSL h . Ia VS«.f DRIP .

Came S I:AlffÃ.Of'anllfIC I:OMDITION NAS 4 OIRTV POTENTIOMETER OHINSTANscwrfss)S mrrff".,IT If)sf DOARD OF ~ VOL)ROE RESIR.AIOR . SUSPECT

S«WSSAL SSCAR / DOING I SEE VENDOR PRINT H018-80 )Art ssess Ffff)NIIOssEILR WAS SIIFED I CLEAKD ) I FLUCTUATIONS 8TDPPED 0 I

sws,"ghfbsl )

PLI»SCS I )«)TOR 18+-157

Appl s CIIDO)%IIODrsC ~ COnd DOO«ter Pu«sp IIOtar

DDs 02/15/87 Drirs S«IILF IN St:RVII:E f5'ECONDARY CISIDE)ATE ~ TRIPPED tFF LINE ~

FSS 02/)5/n7 C,nii»S If«cf)UIISS AN IHVCSIIOaTION IT N48 FOND THAT TNE PUS%" S HOTOR H48IDs ll/0 /00 ~ AN Ifpt.H I:IRCUIT IN TfsE STatOR FIELD ~

Art snns Hl)IOR HAS REPLACED ssffICN IKCESSITATED REDUCED PQKIt EÃ%RATIIRI ~

Nfrs P07b Person« Peeblee Elect Prod lncHnd Nsses C5000J

Nod lds

Syetres f«SD ~den«etc-OEUtl Syrus 4D

FFGssCSI ROTOR LCM-t57

Appl s CNSI~)Dries t:ond Isooeter Puep Ilotor

DD s 07/ 15/80FBs 07/I'5/ffOIDs lt/v"/vn

Mfr s F076 - persons Peeb)ee Elect Prod Inr.~f f«<es C5000JSftwt Id s

Syif rsss I«ID -Condensete-OEutf Dyes AD

Deics Sfn 88n7thtt5 - IR«SINO HORHRL PLIWT tÃsERATII&S lW CbsERATIÃI OSSERVEDOIL LCAs tNO FRON flit. L ifsE COsesECTIIÃs8 TO ~ SECONDARY CONDENSATE

PUI%'C-V-IS«

) HOIOR Ulf I:OOLCRCheeks I«S.J I.TS SSAD Ih:TN REtrfTD ~ tsECNK HORN AHD DETERIIÃIATED ~

As. S„sl«l s I OS«8 C Iif WS SfrRF T Ir~ffEHED AND t AIER OASFETS HERE REPLACED ~

LIISLS TISILO Sar frFACIORIALLVAND rm tarte RETur»aD TO SERVICE .

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Page 145: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

1 02/2212Command=-==>

NPRDS — Nfr Search Condi tion Table Row 000i of 1609

To findand pre

CodeA5 bA5164048402145b740Zi04028Ar014597A0 8

'404240514569

a specific Nfr. enter all or part af name:ss <ENTER> . Press <F5) to repeat find.. Type S or X by selection(s) ~

Manufacturer NameAbbeone Cal IncAbbott Heat Exchanger CorpAbbott Power CorpAbbott Transformer Div / Abbott Transis LabsAbernathy , Thomas and BauggelAccurate Air Engineering IncAce Controls IncAcme Elec CorpAcme Structural Inc4copianAcro-Nag IncAction Instrument Co Inc/ Action-Pak TNAcurex Corp

4t TRIC F DUCTS NOT FOUND. PRESS <Fl> FOR HELPSelect Mfr(s) by typing S next to the t1fr(s) to bo included. GRExclude Nfr(s) by typing X next to the Nfr(s) to be excluded.Press <F2> to end selection. (F1=Table Usage Help,FS=Prev Nenu,F4=Primary Menu~F6=Query Summary,F?=Up.F8=Down,F12=-Report, . =Field Help)

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1.02/2212 NPRDS — Nfr Search Condi tion TableCommand==-=>

Row 1016 of ih09

To findand pres

CodeN005N007N010N015NoN024N040N051N05 s

N060N023N070@010

a specific htfr, enter al 1 or part of name:s <ENTER> . Press .F5> to repeat find. Type S or X by selection(s).Manufacturer NameNalco Chem CorpNamco ControlsNash Engg Co TheNational Acme Div / Acme ClevelandNational Annealing Roi CoNational RrdNational Forge CoNational Sonics Corp / Sensall TNNational Tank 4 Manufacturing CoNational Valve 5 Nfg CoNatkin 8. CoNeci-Nuclear Engg ~! Components IncNeles-Jamesbury/formerly Ja'tnesbury

NAhtCO FOUNDSelect htfr(s) by typing S newt to the t1fr(s) to be included, OR

E:.elude Nfr(s) by typing X ne::t to the Nfr(s) to be excluded.Press <F2> to end selection. (F1=-Table Usage Help,F i=Prev Menu,F4~Primary Menu~F6=Query Summary, F7=Up, F8=Down ~ F 12=Re por t,: =F ie 1 d Help)

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If

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Nuclear Plant Rellablllty Data System

General Report

For: Sr lan Steen-tarsenPacl flc Gas and Electric Ccayany

Report-Id: IIPRG00AA

Job Ihs4er: 8275

Run Dat e: Ol/12/9 IRun

Tlute:

13:20

lntroduc t Ion:

The attached report was generated by your query of the KPRDS data base.A sugary of your query Is listed below.

gVERY:

You selected the following search condl tlon(s):

Selected Manufacturer Is Portec Inc

There were 62 records aeetlng the search condltfon(s).

OISPI.AY ARD SDRT:

You selected to run general report lComponent Fa I lure 8r le f Report

You chose to sort the report by:

SortSequence Field llaae

Manufacturer Model NakerManufacturer Model ID

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4

J

'A'

P

t

4

+[

f

p

Page 151: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRGOahh Nuclear Plant NellabIIIty Data Systee - Failure Brief ReportBy: Nanufacturer Nodel Nuaber, Hanufacturer Nodel ID

Nun Date> olney/91Job lhwbert 8215

Unl t Cavy Ut I I Ity Casement

PPLSE5 I GENERA OG-501 C

Appl: KPGE

Desc: Emergency Generator

Nfr: P292 - Portec IncNod Nue: tl70

Nod Id:

Systea: EEA -Eau.'rgency Pouer-GE

Utl Sys:

02'm:FS:

10:

05/Ol/90Ol/IO/9009/10/90.

ld Dates Narra t Ivms

Desc: MITH THE UNIT AT 100 PERCENT POMER, A NAINTENANCE NECHANIC

NOTICED OIL LEAKING FROI THE AIR VENT PART OF THE GENERATOR BEARING

HIGH TENPERATURE TRIP SKNSOR . THE HIGH TENPERATURE TRIP SENSOR IS A

PIECE PART OF THE GENERATOR . THIS OKGIVOED THE TRAIN ~ THE DIESEL

MOULD HAVE STARIKD ANO RUN UNKR AN EMERGENCY START BUT NOT UNDER TEST

CONDITIONS . PLANT OPERATION MAS UNAFFECTED

Cause: INVESTIGATION RfVEALEO THAT THE TRIP SENSOR i%7 NOT %BI PROPERLY

REINSTALLKO IN ITS IXWNTING HOLE AFTER AN 18 INNTH DIESEL OVERHAUL .NAINTENANCE HAO ANTICIPATED INSTALLING A REPLACENENT BUT HAO NOT DONE

SO ~

Action: THE TRIP SENSOR MAS PROPERLY NOUNTEO, THE FITTINGS MERE

RECONNECTED AND THE lOCK NUT TIGHTENED ~ THE TRIP SENSOR MAS

RECALIBRAIEO ANO PUT BACK INTO SERVICE .

Peuebgf-VMIr9 ~~4L.I4H>, SuSqge~nt~

PPLSESI GENERA OG-5010

Appl: KPGE

Oesc: Emergency Generator

Ilfr: P292 - Portec IncNod Nua: lll0

Nod Id:

System: EEA -Emergency Pee -GE

Utl Sys: 02l

~itlP1/ f ~t 8 <Mp8

Im: 01/25/89FS: Oa/25/88

IO 06/29/89

Desc: MITH THE UNIT AT ISA POMER NAINTENANCE MAS PERFORNING THE

EMERGENCY DIESEL GKNERATOR ( D / G ) MINDING INSUtATlON RESISTANCE

CHECK ( NEGGER ) AS PART OF TECHNICAL SPECIFICATION 18 NIITH 0 / G

D'NSPECTION( SURVEILLANCE NUNBKR SN-024-DOI ) . THE %GGER TEST DONE

AS PART OF THIS HAS ACCEPTAIICE CRITERIA AROUIO 10000 HEQNIS AT 500VOC

. THE GENERATOR FAILEO THIS TEST BY GIVING ONLY 10000

Cause: OHHS AT 500VDC . THE CAUSE OF THIS IS THE INSULATION BREAXDOMN

OUE TO MEARING OUT . THE INSULATION BRKAXOOMN THEN CAUSES h SHORTEO

CONDITION BEIMEEN MINOINGS ~ THE ROOT CAUSK OF THIS EVENT COULD NOT BE

FOUND BECAUSE THE HEGGER TKST FINALLY INCREASSED MITHOUT HAINTENANCE

FIISING THE SHORIED MIRE . THE GROUND COIL MAS ISOULTED AND ALL THE

SOLOERKO CONNECTIONS OF THE MINOINGS MERE CLEANED MITH A

Action: NAGNET . THE COILS MERE BLOMN OUf MITH AIR AND 10 TO 13 ANP OF

CURRENT MAS RUN THROUGH THK COIL GROUPS TO MAIN THKII UP FOR 22 HOURS

'HIS

HELPS TD SOFTEN THE INSULATION SO THAT THIN SPOTS MILL THICXEN ~

NAIIIIENANCE OBSERVED POOR RESISTANCE TESTS THROUGHOUT THE REPAIR

EFFORTS ( A TEHPORARY FIX ) SO THE MINDING IS SCHEDULED TO BE REPLACED

IF IHK FINAL HKGGER TRENDS DOMN DURING THE NEXT TEST .

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Page 153: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRGOIAA Nuclear Plant kellablllty Data Systee - Failure Brief ReportBy: Nanufacturer Nodel Number, Nanufacturer Nodel ID

Nun Dates Ol/11/91Job Noben 8275

Unl t Camp VtlI Ity Ccsyonent Id

PPLSKSI GEIIERA OG-501D

Appl: KPGE

Oesc: KaergencyGeneratof'0f

05/21/86F5: 08/19/85IO: 09/IB/86

Nfr: P292 - Portec IncNod Nm: >110

Nod Id:

Systeaf: EEA -Eaergency Peer-%Utl Sys: 02'

<<< y~ 8 uc h < 5'~S I

Narrat Ives

Oesc: MITH THE PLANT NEAR IVORY POMKR . NAINTENANCE PERSONNEL llEIIE

PERFORNING THE DILSKL GENERATOR ( D / G ) IB NOIITH INSPECTION (SN-024-001 ) . THE SVRVEILUUICE FAILKD THE NEGGER TEST'5 ACCEPTANCE

CRITKRIA ON THE EXCITER PORTION OF THE GENERATOR . AFTER SERVICING TNE

0 / G FOR THIS PROBLKN IT MAS RVN ~ UPON DOING 50 THE GENERATOR IQD AN

ARC-OVER MHICH STARTED A FIRE IN THE NAIN PLANT PROCESS CONPUTER .Cause: THE ROOT CAUSE OF THE NEGGKR FAILURE A% POSSIBLY THE FIRE MERE

OUE FRIN GRONOING OF THE GElfERATOR . THIS GRONOING MAS PROBABLY

CAUSED BY DIRT ANO NOISTURE ACCINlLATION IN THE GENERATOR ~ THIS INTURN MAS PROBABLY DUE FRON THE NAINTENANCE Ale CONSTRUCTION ACTIVITY

FOR THE NEM ( 5TH ) 0 / G ADDITION . THE ARC-OVER MAS CAUSED BY HVNAN

ERROR BECAUSE THE SLIP RING MIRING LUGS ItERE NOT TIGHTENED

Action: SUCH THAT THEY ltKRK PULLED OFF OF THE SLIP RINGS THUS CAVSING

THE ARC-OVER . BECAUSK OF THE ARC-OVER, CURRENT MAS ALLOMED TO REACH

THK INPUT CARDS OF PLANT COIPUTKR THAT INNITORS THE D / G ( THE

COIN'UTER IS SONE OISTANCK FRON THE D / G ) . THE 0 / G MAS CLKAIIED AND

TERNINAL LUGS MERE REPAIRKO AlfO RKPLACED .

PPLSESl GKIIERA OG-50IA

Appl: EPGK

Desc: Emergency Generator

Nff". P292 - Portec IncNod Nm: fll0

Nod Id:

System: EKA. -Emergency Pouer-GE

Utl Sys: 02l

00'5/21/86FS: 05/21/86ID: 02/19/81

Oesc: DN NAY 21, 1986 DURING THE PERFORIIANCE OF THE DIESEL GENERATOR

START SURVEILLANCE THE 'A'IESEL GKNKRATOR OG-50lh 010 NOT ACHIKVE

THE RKqUIRKO VOLTAGE OF al60 PLUS OR NIIIVS 400 VOLTS ~ AFTKR STARTING

, DIKSEL FREQUENCY MAS APPROXINATELY 59 . 2 Hl A% VOLTAGE ltAS

APPROXINATELY 2100 VOLTS . ATTENPTS BY THE CONTROL RON OPERATOR TO

INCRKASE VOLTAGE.ItERK UNSUCCKSSFUL ~

Cause: UNIT I AT 100%, UNIT 2 AT 93% . INVESTIGATION OETERNINED THE

HOST LIKELY CAUSK OF THE KVENT MAS NISOPERATION OF THE 'VR'ELAY IN

THE VOLTAGE RKGULATOR . THK RKLAY NISOPERATION CAUSED THE FIELD

FLASHING CIRCUIT TO RKNAIN ON ~ PREVENTING VOLTAGE FRIN INCREASING ~

OPERATIONS'TTENPT TO INCREASE VOLTAGE INCRKASEO THE VOLTAGE SETTING

ON THE NOTOR OPKRATEO POTENTIONETER ( NOP ) . AFTER

Action: AN UlfEXPECTKO TINE DELAY THE 'VR'ELAY ACIUATKO . THE GENERATOR

VOLTAGE INCREASED TO THE VALUE SET ON THE NP CAUSING THE OVERVOLTAGE

RKI.AYS 10 ACTUATE . THK 'A'IESKL GFNKRATOR HAS BKKN RUN SIX TINES

SUCCESSFULLY SINCE 5./ 21 / 86 MITH NO DUPLICATION OF THE EVENT ~ THE

RELAY MAS IKSTEO ND OPERATIONS HAVE BEEN TRAINED TO PREVENT THE

VOLTAGE REGULATOR SETTING FRN BEING SET ABOVE RATED VOLTAGE

Page 154: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 155: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Rellabl I Ity Data Systee - Failure Brief Report

By: Nanufacturer Nodel Nu4er, Nanufacturer Nodel ID

Run Oaten'l/11/giJob liber! 8215

Unl t Coup Ut I I Ity Caayoncnt ld

PPLSE5 I GENERA OG-501 A

Appl: KPGE

Desc: Emergency Generator

Nfr: P292 - Portec lncNod Nun: II10

llod

Id'ystear.

EEA -Eaergency Pouer-GE

Utl Sys:

02'm:08/22/86

F5: 08/22/86IO: 03/06/81

Narrat Ives

Desc: ON 8 / 22 / 86, HITH UNIT ONE AT ION POHER AIO UNIT 2 IN- REFUELING OUTAGE . THE 'A'IESEL GENERATOR HAS REHOVEO FRON SERVICE

TO TKST FOR VOLTAGE REGULATOR PROBLKHS ( REFERENCE FAILURE REPORT

DATED 860521 ) IN THE GENERATOR OG-50IA . ON THE FIRST ATTENPT TO

START, THE GENKRATOR OID NOT ACHIEVE REOUIREO VOLTAGE ~ AIO TRIPPKD ~

Cause: THK TRIP SYHPTOHS INDICATED VOLTAGK REGULATOR PROBLKNS .CHATTERING OF THE 'VR'KLAYCONTACTS, HHICH TRANSFKRS THE GENERATOR

FRON FIELD FLASH TO SELF EXCITATION, HAD CAUSED THE FIELD TO COLLASPE

HHILE THE GENERATOR TERNINAL VOLTAGE'EHAINED CONSTANT . THIS HAS

ATTRIBUTEO TO A OE5IGN PROBLKII ARITH THE 120 / 2l VOL'f STEP DOHN

TRANSFORHER AND RET IF IER ASSEHBLY ~

Action: AN 'URGENT'ESIGN

NOTIFICATION

HAS INITIATEO TO INSTALL A

CAPACITOR IN THE BRIDGE THAT SUPPLIES THE 'VR'ELAY COIL . BENCH TEST

SHOIIED THIS TO GREATLY REDUCE CHATTER, ALLOHING THE RELAY TO ACTUATE

CLKANLY ~ AFTER INSTALLATIOll, TESTING SHOVED CHATTER ~ THNN REDUCED

, STILL KXISTED . INVESTIGATION TO RESOLVE THE PR08LEII PERHANENTLY

CONTINUES .

PGCTNPI GENERA R-106A

Appl: KPGE

Oesc: Eau.rgency Generator

Nfr: P292 - Portec IncNod Noa: L-10921

Nod Id:

OO: 01/10/83 Desc: DURING NORHAL OPERATIONS AlO SURVEILLANCE TESTING, THE VOLTAGE

FS Ol/10/83 CUTOUT FAILEO 10 HORX HHEN THE EDG RPII DROPPED TO + 690 RPN ~

10: 04/25/90 Cause: STICKY ANO OAHAGEO AUXILIARYCONTACTS . NO KFFECT ON AUTO OR

HANUAL DIKSEL START IIIG OR LOADING FUNCTIONS ~

Action: REPAIRED, CLEANED, ANO AMUSTED AUXILIARYCONTACTS e TESTED

SYSTKN FOR PROPKR OPERATION . HR-83-0156 .

System: EEB -Eaergtncy Peer-HUtl Sys: KOG

PGCTRP I GENERA K-I06A

Appl: EPGK

Desc: Emergency Generator

Nfr: P292 - Portec lnc

Im: 06/10/83 Desc: DURING NORHAL SHUTOOVN OPERATIONS, THE OVER-EXCITATION ALARII HAS

FS: 06/10/83 ACTUATED ON THE HEST ( A ) EOG UNIT HHILE TKSTIIIG . NO EFFECT ON PLANT

IO: 04/25/90 OPERATIONS .Cause! THE OVER-EXCITATION ALARN RELAY ACTUATED PREHATURELY; PROBABLE

CAUSE OUE TO DEFECTIVE RELAY CIRCUITRY ~

Action: REPLACED OVER-EXCITATION RELAY AIO TESTED FOR PROPER OPEltATION o

Page 156: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 157: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRG04hh Nuclear Plant Reliability Data Systce - Failure Brief Report

By: Nanufacturer Nodel Nu4er, Hanufacturer Hodel 10

Run Dates OI/11/91Job Ihaaber: 8215

Unl t Coup Util I ty Casponent Id

PGCTNPI GENERA X-106h

hppl: EPGE

Desc: Kmrgency Generator

llfr: P292 - Portec lncNod Nm: L-10921

Nod Id:

Dates, Narratives

N: 03/28/85 Desc: DURING INSPECTION AT FUI.L PLANT POMER, THE FIELD FLASHING

FS: 03/28/85 RESISTORS FOR THE KNERGENCY OIKSEL GK%RATOR MERE FOUND TO SHOM SIGNS

ID: 04/25/90 OF HAVING OVERHEATED . BUT CIRCUIT RENAINEO FUNCTIONAL ~

Cause: OVERHEATING OF THE RESISTORS, PROBABLY DUE TO ELKCTRICAL

OVERLOAD .Action: REPLACED TMO FIELD FLASHING RESISTORS .

System: EEB -Esergency Pouer-M

Utl Sys: KDG

PGCTNP1 GENERA K-106h

hppl: EPGK

Desc: Emergency Generator

ilfr: P292 - Portec IncHod Nua: L-10927

Hod ld:

Im: Ol/20/83 Desc: ONING NORHAL POMER OPERATIONS, THE 'A'RAIN E%RGENCY DIESEL

FS: 01/20/83 GENERATOR ( EDG ) DIO NOT OPERATE CORRECTLY . NO EFFKCT ON PLANT

IO: 04/25/90 OPKRAT IONS .Cause: THE EDG SPEED SNITCH MAS FOUIO OUT OF NLNST%NT ANO DEFECTIVE,

CAUSING A FALSE SPKKO SIGNAL MHEN THK OIESKL MAS SECURED .Action: REPLACED SPEED SMITCH; AOJUSTEO SPEED SMITCH FOR PROPER OUTPUT

: AND TKSTED THE KDG UNIT FOR PROPER OPERATION ~ %-83-2147 ~

System: KEB -Emergency Pouer-M

Uti Sys: EDG

PGCTNP I GENERA R-106A

hppl: KPGE

Desc: Emergency Generator

Nfr: PZ92 - Portec lncNod Nut: L-10921

Hod Id:

OO! 09/16/83 Oesc: DURING NORHAL POMKR OPERATIONS, THE FIKLD FLASH RELAY ON THE'A'S:

09/16/83 IRA'IN EOG MAS OBSKRVED TO FAlL DURING SURVEILLANCE TESTING ~

ID: 04/25/90 Cause: A COlL IN THE FIELD FLASH RELAY UNLATCHING %CHANISH FAILEO

PREVENTING THK FIELD FLASH FRON OE-ENERGIZING ANO CAUSING OVERHEATING

IN THE CIRCUIT .Action: REPAIREO EOG F IELD FLASH CIRCUIT ANO NJUSTEO SPKKD SMITCH,

TKSTKD EOG FOR PROPER OPERATION . %-83-3144 .

System: EEB -K agency Pouer-M

Utl Sys: EOG

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Page 159: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRC04AA Nuclear Plant Nallablllty Data Systee - Failure Brief ReportBy: Hanufacturer Nodel liber, Nanufacturer Hode1 ID

Run Dates 01/I)/91Job liber! 8275

Unl t Ceap Ut l I Ity Caaponent Id Dates Narrat Ives

1%'LCC5 I GENERA qlE225001

hppl 'PGEDesc: HPCS Eaerg Par Generator

00: 01/I3/85FS: Ol/05/8510: 08/05/85

Hfr: P292 - Portec IncNod Itua: L-11022

Hod Id:

gI ~~ e'wietc Y/<s~<'~d

6tfE-F )

System: EEE -High Pressure Core Spray Pouer-GE

Utl Sys: E22

Desc: DURING A DIVISION 111 STNOBY DIESEL GENERATOR FUNCTIONAL TEST,OPERATORS SHUT DORK THK DIESEL GENKRATOR HHEN SPNWS IIERE OBSERVED

COHIKG FRtNI THE GENERATOR BEARING EIO CAP ~ THE PLANT HAS AT

APPROXIHATELY 65% POVER .Cause: HAIKTEKAKCE INSPKCTION REVEALEO A LDH SPOT IN T% INSUIATION

UIOER THE GKHERATOR BEARING INNER RACE ~ THIS COIOITION ALLOHED

EXCKSSIVE RADIAL HOVEKENT OF THE GENERATOR SHAFT HHICH CHEATED

CIRCULATING CURRENTS . THESE CURRENTS RKSULTEO IN THE SPARKS NOOVERHEATING OF THE GENERATOR ~ ACTUAL CAUSE OF THE INSUlATION LOH SPOT

IS UNXKUWI .Action: THE SWAGED GENERATOR HAS REPLACED ARITH THE DIVISION 111

CKNERATOR FROK UNIT 2 . THK DANGED GKKERATOR HAS SHIPPED TO THE

VENDOR FOR INSPECTION NO REPAIR . IIAIKTENANCE RETEST HAS SATISFACTORY

. ( E54336 )

HPI.GGSI GKNERA qlE225001

hppl: HPGE

Oesc: HPCS Gnerg Pur Generator

Ilfr: P292 - Portec lncHod Kta: L-11022

Hod Id:

EEE -High Pressure Core Spay Pouer-GE

E22

System:Utl Sys:

OO: 04/03/89 Desc: DIVISION III DIKSKL GENERATOR 5001 EXCITER VOLTS, N%5, NO VARS

FS: 03/20/89 DROPPED 10 - 15 0 HHEN THE KHCIHE HAS LOADED DURING A SURVEILUVICE

IO: 12/04/89 TKST . THERK HAS KO SIGNIFICNIT EFFECT ON THE PLANT, HHICH HAS SHUT

DORK FOR REFUELING OUTAGK 3 .Cause: THE FAILURK IIAS ATTRIBUTEO TO THREE FAILEO SILICONE RECTIFIERS IN

THE GKNERAIOR, NIO TO A HIGH RESISTNICE.ACROSS THE CONTACTS OF THE

RELAYS HHICH PROVIDE FEEDBACK TO THE VOLTAGE REGULATOR ON DIVISION IIIOIESKL CEKERATOR 5001 .

Action: RKPLACEO THE THREE FAILEO RECTIFIERS NO CLEANED THE R2 NO R3

RELAY CONTACTS IN THE VOLTAGE REGULATOR CIRCUIT'N DIVISION Ill DIESEL

GKKERATOR 5001 . A FUNCTIONAL RKTEST HAS COHPLETEO KITH SATISFACTOR'Y

RESULTS . ( E92165 )

HPLGGSI GENERA qlP15EOOIA

Appl: KPCK

Desc: EaergencyGenerate'D:

12/19/89FS: 12/IB/89ID: 10/21/90

Ilfr: P292 - Portec IncHod Nm: L-11033

Hod Id:~~g ~d g MfF (

Oesc: DURING NORHAL HAINTENANCK ACTIVITIES, IT HAS OBSERVED THAT BOLTS

IK 'IHE GKNERATOR TERKINATIOK 80X COVER FOR THE DIVISION I DIESEL

GENERATOR HERE STRIPPED OUT NO NEEOEO TO BE REPLACED ~ THERE HAS NO

SIGNIFICANT KFFEC'I ON THE PLAKI ~ HHICH HAS OPERAllNC AT 100 PERCENT

POVER . THE DIVISION I DIES'EL GKNERATOR HAS HOT KFFKCTEO BY THIS

FAILURK ~

Cause: THE BOLTS IN T% CE%NATN TENINATINM FN T% OIVISIINI 1

DIES'. GENERATOR HERE STRIPPED DUE TD IIISALIQOOfT BETHEEN THE

Page 160: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 161: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

System: E'EA -Eaergenry hatt-GEUtl Sys'15

TERNIRATION 8OX COVER 8OLT HOLES AIO THER PEIBIANENT NOTS TKK %LDNTO THE LIP OF THE TERNINATION BOX ~

Act Ion! THE DIVISION I DIESEL GENERATOR TERNINATION 8OX NAS REPAIREO 8Y

ROeVING THE EXISTINC NUTS ON THE TERNINATION BOX, STRENOTHENIIR'HELIP OF THE BOX, ARO ATTACHING NEM NUTS ~ NEH BOLTS HERE ALSO

INSTALLEO ~ A NAINIERAKE RETEST VERIF IEO PROPER OPERATION ~ ( NOO6FZ8

)

Page 162: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson
Page 163: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRC04M Nuclear Plant Rellablllty Data System - Failure Brief IIeportBy: Nanufacturer Nodel Nuaber, Nanufacturer Nodel IO

Run OateI OI/l1/91Job lambert 8215

Unit Caep Vtlllty Coaponent Id Dates Narra t fvn

IN'LGGSI GKNKRA QIP?SEOOIA

Appl: EPGK

Oesc: Emergency Cenerator

Nfr: P292 - Portec lncNod Nm: L-11033

Nod Id:

00: 12/IB/88FS: 12/04/88ID: 05/22/89

Oesc DURING SURVEILLANCE TEST INC, THE OUTPUT OF DIESEL GENERATOR EOOIA

MAS OSClllATINC . THERE MAS NO SIGNIFICANT EFFECT ON THE PLANT, MHICH

MAS OPKRATINC AT 100\ POMKR .Cause: THE OSCILLATION IN THE OUTPUT OF DIESEL GENERATOR KOOIA IIAS

CAUSED BY FAULTY DIODES IN EXCITATION RKCTIFIER BRIDGE il .Action: THE FAUI.TY DIODES IN THE EXCITATION RECTIFIER BRIDGE 'IIERE

REPLACED . DIESEL GENERATOR EOOIA MAS RUN ANO THK OUTPUT MAS NONITORKO

TO VERIFY PROPER, STEADY OUTPUT . ( E86400 )

System: EEA -Eeergency Pouer-CK

Utl Sys: P?5

IN'LGCSI GENERA QIP?5E0018

Appl: EPGE

Oesc: Eaergency Generator

Nfr: P292 - Portec lncNod Nua: L-11033

Nod Id:

System: KEA -Emergency Pouer-CE

Utl Sys: P75

IXI: 01/II/86 Oesc: THE DIVISION 11 DIESEL GENERATOR TRIPPED MHILE FULLY LOADED DURING

FS: 0?/Il/86 A NONTHLY SURVEILLANCE TKST . THERE MAS NO SIGNIFICANT EFFECT ON THE

ID: 01/29/86 PLANT . THE PLANT MAS OPERATING AT 86'C POMKR .Cause: THK EXACT CAUSK OF THE GENERATOR TRIP 15 UNNOMN ~ AN ANNUNCIATOR

FlAG INOICATEO THAT THE VOLTAGE BALANCE RELAY NIGHT HAVE CAUSED THE

TRIP BVT SUBSEQUENT INVESTIGATION BY NAINTENANCE PERSONNEL DETERNINKD

THAT THE VOLTAC'K BALANCK RElhY MOULD NOT TRIP THK GKNERATOR .Action: AFTER NAINTKNANCE PERSONNEL FINIO NO PROBLKN MITH THE VOLTAGE

BALANCE RKLAY A SECOND SURVEILLANCE TKST OF DIVISION II DIESEL

CKNKIWOR 'MAS CONPLKTKO SAISIFACTORILY ~ REVEIM OF THE INCIDENT 15

CONTINUINC . ( K64051 )

SCESOSI GENERA D/GI

Appl: EPCE

Oesc: feergency Generator

Nfr: PZ92 - Portec IncNod Nea: l-11058

Nod Id:

00: Il/23/82 Desc: 0 / Cl FIEl0 FLASH RllhY R-13 FAILEO TO PIN UP MHEN THE DIESEL

FS: 11/08/82 MAS STARTKD FOR TESTING . R-13 PREVKNTS THE DIKSEL OUTPUT BREAKER FIOI

10: 06/21/89 CLOSINC .'ause: RANOON FAILURK . 12 SUBSEOUKNT STARTS RKSULTEO IN NO FAILURES ~

Action: CLEANED ALL REI.AY CONTACTS .

System: EKB -Eeetgemy Peer-MUtl Sys: OCI

Page 164: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson
Page 165: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRC04M Nuclear Plant Rellablllty Data System - Failure brief Report

by: Hanufacturer Hodel Nsaber, Hanufacturer Hodel ID

Re atel OI/17/91Job Ihsberl 8275

Unl t Coop UtI I I ty C~xeent Id Dates Narratives

SCE5051 GENERA D/Gl

Appl: EPGE

Oesc: Emergency Generator

Hfr: P292 - Portec IncHod Nw: L-11058

Hod Id:

Systea: EEB -Eaergency Poe -IIUtl Sys: OGI

Ie: 02/06/89FS: 02/06/89ID: 06/27/89

Desc: HITH THE UNIT REFUELING, ENGINEERING WAS FOLI.OHING A

POSTHAINTENANCK TEST ON THE DIESEL ENGINK Ale THE GKNERATOR EXHIBITED

. HIDE VOLTAGE SHINGS HHILE IT HAS ON LINE ~

Cause: INVEST ICAT ION BY THERHOGRAPHY REVEALEO SEVERAL LOOSE CONNECTIONS

IN THE EXCITFR CONTROL PANEL . ALSO NOTED 50HE PHASE IHBALANCE ON THE

BRIDGE CIRCUIT . KXACT CAUSE OF FLUCTUATIONS OF VOLTAGE HAS NOT

DETERHINEO . REFERENCE: NCRI-P-7032

Action: TIGHTENED Al.L CONNECTIONS FOUIKI LOOSE OR INDICATEO HOT ON

THERHOCRAPHY lE5T . IMDE PNSK BALANCE AMUSlHENTS AIKI RETURNED

GENERATOR ANO EXCITATION CIRCUITRY TO SERVICE ~

SCESOSI GENERA D/Gl

Hfr: P292 - Portec IncHod Nm: L-11058

Hod Id:

System: EEB -Eau.rgency Peer-ltUtl Sys: DGI

OD: 01/28/89 Oesc: HITH THE UNIT RKFUELING, HAINTKNANCKFOUIO THE E%RGENCY

FS: Ol/28/89 GENERATOR LONER OUTBOARD SUPPORT ( CASTING ) BROKEN AT THE UPPER

Appl: KPCE IO: 06/27/89 OUTSIDE, HHERE THE OUST SEAL SITS .Desc: Emergency Generator Cause: THIS NAS CAUSED HHILE ATTEHPTING TO LIFT OUT T% LONER %ARING

HALF ~ THE JACK AIKI THE LIFT PLATE SLIPPED Ale CRUSHED THE LONER PART

OF THE CENERATOR BENING HOUSINC AIKI BROKE APPROXIHATELY 7 INCHES OFF

THE HOUSING NOUND THE OUST SKAL OICLOSURE . HAINTENANCE ERROR .

REFERENCE: NCRI-P-7002

Action: REPAIREO THE DANGED NEA USING OEVCON TITANIINIPUTTY DN THE

FRACTURED FACE ~ OPKRATINC EXPERIENCE HAD SHOVN THAT THIS TYPK OF

REPAIR ARITH OVER 40 STARTS / STOP CYCI.'ES HAS PROVED OURABLK AIKI CAN BE

CONSIDERED PERHANENT. R'EPAIR . RETURNED ENGINE / CENERATOR TO SERVICE ~

5eÃPf~m M4~< WNnl Co S3H'/tf~~e i

APLANOI CENERA K-4A

Appl: EPCE

Oesc: Emergency Generator

Im: 03/31/75 De'sc: SPORADIC TROUBLE ALARH .FS: 03/31/75 Cause: DEFECTIVE TINE DELAY RELAY .

ID: 07/20/85 Action: REPLACED PART%

Hfr: P292 - Portec IncHod Nea: 1.10823

Hod ld:

Syst~: EEC -Emergency Paar-BNUtl Sys: KDG

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Page 167: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

XPRC04AA Nuclear Plant kellablllty Data Systee - Failure Brief ReportBy: Nanufacturer Nodel liber, Nanufacturer Ibdel ID

Run Oatet Ol/Il/91Job lataaber 8215

Unl t Coup Ut1 I Ity Coaponent Id

APLAXOI CEIIERA K-lA

Appl: KPCE

Desc: E eryency Generator

Dates Xarrat Ives

00: 04/23/15 Oesc: BLOH PT FUSE ALARN ~

FS: 04/23/15 Cause: CFVB RELAY NALFUXCTIOII .10: 01/20/85 Action: REPAIRED SPRIXC HOLDER OX RELAY ~

Nfr: P292 - Portec Inclbd XNa: L10823

Nod Id:

System: EEC -bergency Peer-WUtl Sys: EDG

APLAIIOI CEXERA K-4A

Appl: EPGE

Desc: Emergency Generator

DO: 05/11/16 Oesc: DIESEL IIO . I FAILKO TO START OX SINULATEO E ~ 5 o ACTUATINI

FS: 05/ll/16 Cause: FAILED 0100E IX THE DIESEL AUTO-START CIRCUIT

ID: 01/20/85 Act Ion: REPLACKD DEFECTIVE DIODE

Nfrt P292 - Portec IncIbd Xmt LI0823

Nod ld:

System: KEC -Eaergency Peer-NUtl Sys: EDG

APLAXOI GKXERA K-4A

Appl: KPCE

Desc: Eeergency Generator

DD: 01/30/18 Oesc: OURIXC INSPECTION NEGGERKO GKIIERATOR MIXOIIIG CHECKED SLIP RIIICS .FS: 01/30/18 IOEIIIIFIEO BAD VOLTAGE BOND

ID: 01/20/BS Cause: UOXOMX

Act lon: REPLACED VOLTAGE BOARD

Nfr: P292 - Portec lncNod Xw: 1.10823

cA Nod Id:

System: KEC -Emergency Peer-BMUtl Sys: EDG

Page 168: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson
Page 169: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRGOlhh Nuclear Plant Reliability Data System - Failure Brief ReportBy. Nanufacturel Nodel Ittsbtl, Nanufacturer Nodel IO

Run Detet OI/l7/91Job Ihaben 8275

Unlt Case Ut I I Ity Ccapment Id

APLANOI GENERA K-lh

Appl: EPGE

Desc: Emergency Generator

Dates Narra t Ivs

00: 07/25/18 Desc: OIESEt. GENERATOR RUN TINE NETER FAILURE PIECEPART-TINE CLOCK ~

FS: 01/25/18 IIUNECHRON-TYIIETKR, GNT NOOKL

ID: 01/20/85 Cause: ELAPSED TINE %TER BAD

Action: REPLACED ELAPSED TIIIK IIETER

Nfr: P292 - Portec IncNod Nu: L10823

Nod Id

System: KEC -Emergency Pse.-BMUtl Sys: EOG

APLAIIOI GEitERA K-<h

Appl: KPGE

Desc: Emergency Generator

ltfr: P292 - Portec IncNod Nue: ll0823

Nod Id:

OOI 02/08/83 Desc: NILE PERFORNING OVER-SPEED TEST ON K-ah, THE DIESEL ENGINE

FS: 02/08/83 OVKRSPEKO HAS HIGHER THAN SET POINT BY ( 3 ) RPII THAN IIAX PKRNITTED ~

10: 01/20/85 Cause: SKT POIIIT DRIFT FOR UNNNN REASON, OR POSSIBLY IN%OPER SETTING

BY PREVIOUS GROUP .Action: AMUSTKD OVERSPEED TRIP %CHANISN TO PROPER SKT POINT PER VENDER

INSTRUCT IONS .

Systeet EEC -Emergency Peer-BMUtl Sys: KOG

APLANOI GENERA K-lA

Appl: KPG'E

Oesc: Kna.rgency Generator

Nfr: P292 - Portec IncNod Nea: L10823

Nod Id:

OO: Oa/13/83 Oesc: VOlTAGE REGUlhTOR lilllNOT CONTROL GENERATOR OUTPUT DURING NNTHLY

FS: Oi/13/83 SURVE ILLANCE TESTING .ID: 01/20/85 Cause: FAILEO SOURCE CIRCUIT BREAKER IN PANEL HDII, FAILURE OF 120 VOlT

AC . BREAKER COULD IIOT BK OETERNINEO .Action: REPLACED BREAKER AT PhltEL f HOII ) . NEH BRKAKER 15 30 AIN'

POLK 0 BRENER ~

System: EEC -Etaergency Poser-BM

Utl Sys: EDG

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Page 171: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPR604AA Nuclear Plant Rellablllty Data Systole - Failure Brief ReportBy: Nanufacturer Nodel Nuaber, Hanufacturer Nodel 10

Run Date! OI/IP91Job Nuabers 8275

Unl t Coup Ut I I Ity Caeponent ld

APLANOI GKNKRA R-IA

Appl: EPGE

Oesc: Eau.rgency Generator

Nfr: P292 - Portec IncNod Ihaa: L10823

Nod Id:

Da'tes Narratives

Im: 01/21/85 Desct WILE PLANT AT 0% POWER . ND ONlNG SURVEILLANCE TESTING OF THE

FS! Ol/06/85 DIESEL ENGINE ~ FOUND THE GENERATOR KXCITATION STSTEN NOTOR OPERATED

IO: 01/20/85 POTENTIOHETER ( HOP ) TO BE INOPERABLE .Cause: IIIVESTIGATION REVEALED A BLOWN FUSE AIO A FAILEO 16P ~ THE ROOT

CAUSE WAS THE INPUT DIODES PART OF IOP SHORTED . CAUSING THE FOES TO

BLOW . NSIFIED THE CIRCUIT ANO RKNOVKD THE DIRE ~

Action: REPLACED FUSKS ANO NOOIFIKD NP CIRCUIT BT RENNING THE DIODES .RAC I-85-03I .

System: KKC -Kmrgency Power-BW

Utl Sys: EDG

APLANOI GENERA R-IB

Appl: KPGE

Desc: Emergency Generator

DO: II/25/75 Desc: INLET ARO OUTLKT FLAIIGKS ON LUBE OIL SIDE OF COOLER LEAXING

FS: II/25/15 Cause: GASXKT OKTKRIORATION

10: 01/20/85 Action: REPLACED CASKETS

Nfr: P292 - Portec IncNod Nm: L10823

Nod Id:

System: KKC -Eaa.rgency Power-BW

Utl Sys: KOG

APLANOI GKNERA K-IB

Nfr:

Qllod Km:

P292 - Portec Inc1.10823

Appl: KPGE

Oesc: Keergency Generator

00: 03/20/18 Oesc: OISEL GENKRATOR $2 WAS NANUALLY TRIPPED OUE TO ABNORNAL

FS: 03/20/78 INDICATIONS . FIRE FRUN EXHAUST STACK WAS NOTED, FIRE INSIDE TURBO

10: Ol/20/85 CHARGER ~

Cause: FAILURE OF THE BEARING BETWEEN THE Q- INLET BLADING 8 EXHAUST

TURBINE BLADING OF THE OIKSEL ENGINE TURBO CHARGER . FAILURE ALLOWED

OIL INTO KXHAUST WHICH IGNITED .Action: FIRK TEAN RKSPONDKD . TURBO CHARGER REPLACED .

System: KKC -Emergency Power -BW

Utl Sys: EOG

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Page 173: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRM4AA Nuclear Plant Rellablllty Data Systce - Failure Brief Report

By) Nanufacturer Nodal Nueber, Nanufacturer Nodel ID

ae Dates olny/91Job Nueben 8215

Unl t Caap Ut I I Ity Caapanent ld

TVASNPI GENERA KKDG0004406

Appl: EPGK

Desc: Emergency Generator

Dates Narratives

DDt I2/06/83 Desc: DURING A ROUTINE SURVEILLANCE, HHILE THE SYSTEII HAS OPERATING TNE

FS: 12/06/83 INABILITYTO CONTROL SPEED OF DIESEL GENERATOR IA-A WAS DETECTEO,

IO: 03/28/84 Cause: DRIVE NOTOR FOR SPEED CONTROL POT HAD OPEN MINDING .Action: RKPLACKD HOTOR AND CHECKED FOR PROPER OPKRATIDN . N A-248014

Ilfr: P292 - Portec IncNod Nue: L10906

Nod Id:

System: EEB -Emergency Pouer-IUtl Sys: 082

TVASNPI GKHERA KKDG0004406

Appl: EPGE

Desc: Eau.rgency Generator

llfr: P292 - Portec lncNod Nua: L10906

Nod Id:

OO: 12/Il/83 Oesc: DURING ROUTINE CHECK IT HAS FOUIO THAT DIESEL GENERATOR IA-A MILL

FS: 12/II/83 NOT LON .10: 03/28/84 Cause: BRENER I-OCTA-202-CNI6-A 1912 E%R SUPPLY FOR 6 . 9 RV SON IA-A

HAD A SCRKII IIISSING ON THE LKVER THAT NNES UP THE A FINGER ~ THIS

PREVENTED RELAY 62K FNN PERFORIIING .Action: REPLACED SCRKM ANO CHECKED FOR PROPER OPERATION . INI A-103816

System: EEB -Eaergency Pouer-M

Utl Sys: 082

Appl: EPGK

Desc: Eaergency Generator

Nod Km:P292 - Portec IncL10906

IVASNP1 G'ERE RA EKOG0004406 OO: 12/29/83 Desc: DURING THE PKRFORHANCE OF A SURVEILLANCE TEST GOVERNOR I.OAD /FS: 12/29/83 SPEED PROBLEII HAS FOUN IN THE DIESEL GEN IA-A .ID: 03/28/84 Cause: PROBABLE CAUSE HAS A LOOSE CONNECTOR DN ENGINE NNNTEO HOOOHARD

GOVERNOR AND A TRACE OF GOVERNOR OIL HAS FOUND II51OE THE CONNECTOR

COULD ALSO HAVE CAUSED PROBLEII .Action: TIGHTENED ANO CLEANED PLUG . REVISED SURVEILLANCE ll5TRUCTION TO

CHECK TIGHTNKSS OF PLUG . HR A-100496

System: EEB -Eaergency Peer-HUtl Sys: 082

Page 174: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 175: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRG04M Nuclear Plant" Reliability Data System - Failure brief ReportBy: Nanufacturer flodel Neer, Nanufacturer Nodel ID

Run Dates OV17/91Job liber! 8215

Unl t Coup Utl I lty Coaponent Id

TVASNPI GK HERA EXDG0004406

Appl: EPGE

Desc: Emergency Generator

Dates Narrat lvts

00! OB/01/84 Desc: DIESEL GENERATOR IA-A FAILED TO LOAD UP TO FOUR NEGANATTS

FSt 08/01/84 ELECTRICAL IN 60 SECONDS PER SURVEILLANCE INSTRUCTION 1 ~ PROBLEII

ID: 10/30/89 CLEARKO VHEN OPERATOR ltKNT TO NANUAL NSE OF OPKRATION ~

Cause: OPEN LOAD CAIN ON POTENTIONHKTER CAUSED BY BAO LOAD SENSOR NWULE

Nfr: P292 - Portec Incllod Nua: L10906 ~

Nod Id:

Action: REPLACED LOAD SKNSOR NODULE . NR A-285909

Systew: EKB -Emergency Peer-IUtl Sys: 082

TVASNPI GENERA EKOG0004406

Appl: EPGE

Dose: Emergency Generator

Nfr: P292 - Portec lncNod Nea: L10906

Nod Id:

DO: II/23/84 Desc: DURING NORNAL UNIT OPERATION, A SURVEILLANCE TEST ON DIESE1.

FS: 08/20/Bl GENERATOR IA-A INDICATED DIKSEL WAS LOADING A% UNLOADING ERRATICALLY

ID: 10/30/89Cause: ELECTRONAGNETIC REI.AYS 62X AND G52934, IN THE CONTROL CIRCUIT,

PROBABLY HAO AN OPKN CIRCUIT ~

Action: RKPLACKD RELAYS 62X ANO G52934 . N A-121921

System: EEB -Emergency Peer-HUll Sys: 082

TVASNPI GENERA EKDG0004406

Appl: EPGE

Desc: Kau.rgency Generator

Nfr: P292 - Portec IncNod Nun: L10906

Nod ld:P

System: EEB -Esergency Pere -N

Utl Sys: 082

Im: OI/Il/86 Oesc: DURING UNIT I REFUELING OUTAGE NHILE PERFORNING A SURVEILLANCE

FS: 12/06/85 INSPECTION ON OIKSKL GENERATOR IA-A, THK VOLTAGE ANO FREOUENCY HAS

ID: 10/30/89 NOf HITHIN TECHNICAL SPECIFICATION

Cause: I-GENB-82-Ih-A EXCITATION CONTROL TINE DELAY TRIP CURRENT LEVEL

VAS OUT OF ADJUSTNKNT .Action: AlMI5TKD lHK NININUN-NAXINNIEXCITATION CONTROL TINE DELAY TRIP

CURRKNT LEVEL TO NININUll S'Kl POINl PKR VALIOATKO VENDOR INSTRUCTION

NANUAL . N 8-105470

Page 176: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 177: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRGOlhh Nuclear 'Plant Rellablllty Data Systee - Failure brief Report

by! Nanufacturer Nodal Ihsber, Nanufacturer Nodal ID

aal Datel OI/I2/91Job Nosberl 821$

Unl t Caap UtII Ity Coaponent Id

TVASRP2 GENERA 9$C0012801

hppl: EPGE

Desc Emergency Generator

Nfr: P292 - Portec IncNod lhaa: 'L I0906

Nod Id:

Dates Narratives

OD: 11/05/86 Desc: DURING PUNT OUTAGE A SURVE ILIANCE TKST INDICATED DIESEL GENERATOR

FS: Oa/15/86 2A-A HAD A VOLTACE SHING PRIOR TO LWNG ~

10: 10/30/89 Cause: POSSIBLY, THE 86LOR RELAY CONTACT ASSOCIATED MITN T% AUTO

VOLTAGE RECULATOR, OPERATION 'WAS INTERNITTENT ALLOHING ZKRO 10'O ~

THE VOLTAGE REGULATOR CAUSINC A VOLTAGE SHING ~ REF IIR 8 202109 ~

Action: INSTALLED THE AUTO VOLTAGE CONTROL NOTOR OPERATEO POTENTIOMETER

FRON DIESEL GENERATOR IA-A ONTO 2A-A ~ REPLACED THE VOLTAGE REGULATOR

Ale OFF-NANUAL-AUTO HAIIO SillTCH . ItR 8-208lOI

System: EEB -Emergency Pouer-H

Utl Sys: 082

TVASNP2 GENERA 03G001280I

Appl: EPGE

Desc: Emergency Generator

Nfr: P292 - Portec IncNod Nm: L10906

Nod Id:

Im: 05/18/86 Desc: DURING UNIT 2 OUTAGE . AN AUDIOVISUAL ALARN INDICATED A 30 VOLT

FS: 05/18/86 NEGATIVE GROUND GEIIKRATOR 2A-A ~

ID: 09/ll/86 Cause: GROUND @AS DUE TO CORROSION ON BATTERIKS ~

Action: CLEANED BATTKRIES 'HITH SODA A% HATER CLEARING GROUle ~ Ale

RETURNED TO SERVICE . HR 8-115335

System: EEB -Ewergency Pouer-H

Utl Sys: 082

TVASNP2 GENERA OSCOOI2802

Appl: KPGE

Desc: Emergency Generator

Nfr: P292 - Portec IncNod Kua: L10906

Nod Id:

DD: IO/I7/87 Desc: DURING PLANT SHUTlXNN, HHILE PERFORNING SURVEILLANCE INSTRUCTION

FS: OI/10/81 t Sl ) -26, THE ELECTRONACNETIC RELAY, FOR DIESEL GENERATOR 28-8

ID: 10/30/89 KXHAUST FAll, DID NOT ENERCIZK ~

Cause: THE RELAY BASE CONTACTS MERE LOOSE POSSIBLY DUE TO VIBRATION .THE EXHAUST FANS NUST BE ABLE TO RUN OR CAN CAUSE A DIFFERENTIAL

PRESSURE NIICH CAN TRIP THE DIESEL GKNERATORS ~

Action: REPLACED RELAY ANO PLUG-IN RELAY BASE . ( HR 8-216869 )

System: EEB -Emergency Power-H

Utl Sys: 082

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Page 179: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Nellablllty Data System - Failure Brief ReportByr Hanufacturer Itodel Ihsaber, lhnufacturer Nodel 10

Unl t Ccep Util l ty Component Id Dates Narratives

Run Date! OI/Il/91Job Numen 8215

TVASNP2 GENERA EKOG0012802

Appl: KPGE

Desc: Emergency Generator

Nfr: P292 - Portec IncNod Nm: L10906

Hod ld:

DO! 08/20/86 Desc: DURING UNIT 2 OUTAGE, MHILK PERFORNING A SURVEILLANCE TEST,FS: 01/16/86 DIKSKL GENERATOR 28-8 DIO NOT I.OAO TO ACCEPTABLE SURVEILLANCE CRITERIA

10: 10/09/86Cause: FUSE HOLDER MAS NOT GRIPPING THE FUSE TIGHT ENOUGH TO NINTAIN

PROPER AHPERAGK .Action: hMUSTKO FUSE HOLDER TO GRIP FI5E TIGHTER . MR 8-126286

System: KEB -Emergency Pouer-M

Utl Sys: 082

TVASNP2 GENERA ENOG0012802

Appl: EPGE

Oesc: Eaergency Generator

llfr: P292 - Portec IncNod Nua: L10906

Hod Id:

System: EEB -Eeetgency Pouer-M

Utl Sys: 082

DO: Oa/OI/BlFS: 03/05/81ID: OI/25/88

Desc: DURING PLANT SHUTOOMN MHILK PERFORNING SURVEILIANCE INSTRUCTION (Sl ) 102K / N, DIESEL GENERATOR 28-8 OROPPEO FRON 4000 NILOMATTS TO

2000 KILOMATTS .Cause: THE FUSE CLIP TENSION ( HOLDING THE R5K IN PLACE ) HAD BROKEN

OONI PRKVENIING THE FUSES FROH SWING GOOD CONTACT, ROOT CAUSE

UNKNOMN .Action: REPLACED THE LOAD SENSOR CARD TMICE FAILING TO RESOLVE THE

PROBL'Ell . RKHOVED FUSE BLOCK IN OIKSEL GEIIERATOR 28-8 MITH FUSE BLOCK

FROH THE FIFTH DIESEL GKNERATOR ON MR 8-22195I . ( MR 8-2226l3 )

TVASllPI GENERA EKOG0004I06

Appl: EPGE

Oesc: Emergency Generator

Hfr: P292 - Portec IncHod Nm: L10906

Hod Id:

OO: 06/30/86 Desc: DURING UNIT I RKFUELING OUTAGE MHILE PERFORNING A SURVEILLANCE

FS: Ol/30/86 TEST, DIESEL GENERATOR IA-A IWKRSION HEATER CONTACTS MKRK FOUIO

ID: 10/30/89 P I TIED ~

Cause: IIVtERSION HEATER CONTACTS MERK PITTEO OUE TO NORHAL MEAN ~

Action: REPLACED CONTACTS AND TOOK AVERAGE READINGS . MR 8-I2062I

System: EEB -Eaergency Peer-MUtl Sys: 082

Page 180: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

4

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Page 181: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Rellablllty Data Systole - Failure Brief ReportBy: Nanufacturer Nodel Ihsber, Nanufacturer Nodel IO

Run Data! IMMIJob lambe'! 8275

Unl t Case UtlI Ity Component Id

TVASNPI GENERA EROG0004406

Appl: EPGK

Desc: Eaeqlency Generator

Nfr: P292 - Portec IncNod Nm: L10906

Nod Id:

Dates Narrat Ives

OD: 10/24/86 Desc: DURING PLANT SHUTOOHN ~ A SURVEILLANCE TEST INDICATED DIESEL

FS: 01/15/86 GENERATOR IA-A DIO NOT IIEET ACCKPTABLK CRITERIA .10: 10/30/89 Cause: TINE DELAY RELAY l9 POSSIBLY HAO WST IN ORIFICE .

Action: REPLACED TINK DELAY RKLAY l9 . HR 8-203821

Systea: EEB -Eaergency Pouer-M

Utl Sys: 08Z

TVASNPI GENERA EKOG0004406

Appl: EPG'E

Desc: Eaergency Generator

Nfr: P292 - Portec lncNod Itue: L10906

Nod Id:

OO: 01/06/81FS: Ol/03/8110: 10/30/89

Oesc: DURING PLANT SHUTDOltN HHILE PERFORNING SURVEILUWCE INSTRUCTIN

51-26, DIESEL GEIIERATOR IA-A TRIPPED .Cause: '8'HASE SATURABLE REACTOR TRANSFORM ( T52 ) RN A CROSS ~

ROOT CAUSE HAS URKNMI . ALSO A'HASE SATUMLE TRANSFN%R ( T53 )FAILEO THE HAINTENANCE INSTRUCTION 10 . 39 LENAGE CURRENT TEST ~ (T51 AT 13 RILOVOLTS ANO l53 AT 11 KILDVOLTS ) .

Action: REPLACED SATURABLE RKACTOR TRANSFORHKR l51, T52 AIO T53 ~

RETESTEO TRANSFDRHKRS ANO RETERHINATEO CABLKS . ( HR 8-276251 )

System: KEB -Emergency Pouer-H

Utl Sys: 082

yg(.CE/ /L(TFfegr/ 5E QQOVRE /

TVASNPI GENERA EKOG0004401

Appl: EPGE

Oesc: Emergency Generator

Nfr t P292 - Portec lncllod Nua: LI0906

Hod ld:

OO: 03/21/84 Oesc: DIESEL G'ENERATOR 18-8 AlAN LIGHTS HERE ALI. BURNING HHILE DIESEL

FS: 02/21/84 HAS IN IOLK NODE ~

ID: 10/30/89 Cause: DIODE IN GKNERATOR TROUBL'E ANNUNCIATOR CIRCUIT FAILEO WE TO AGE

Action: REPLACED DISK IN ANNUNCIATOR CIRCUIT AID CNECRED FOR PROPER

OPERATION . HR A-Z43904

System: EEB -Emergency Pouer-H

Utl Sys: 082

Page 182: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

)

0

Page 183: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

NPRGOlAA Nuclear Plant Rellablllty Data Systole - Failure brief Report

by: Nanufacturer llodeI Nunber, Nanufacturer Nodel ID

Run Oatet Ol/11/glJob lhaterI 8215

Unl t Canp UtilI ty Coeponent Id

TVASNPI GENERA EKOG000l407

Appl: EPGE

Desc: Emergency Generator

llfr: P292 - Portec IncNod Nuw: 1.10906

Nod ld:

System: KEB -Eeenfency Poe-MUtl Sys: OBZ

Dates Narratives

00: 08/28/85 Desc: DURING UNIT I REFUELING OUTAGE, MHILK PERFORNING A SURVEILLANCE

FS: 10/20/Bl TEST ON DIKSKL GKNERATOR IB-B, EXClTER CUBICLE HAO DEFECTIVE

10: 01/11/86 CONPONKNTS .Cause: DIRT ACCUNULATION CAUSED ARCING MHKN TRACKING BETMEEN PHASES,

RESUI.TING IN A PHASE A 6 8 FAULT ~

Action: LIFTED ALL BURNED A% BAD CABI,E FOR REPthCE%NT . REPLACED IMO

INNER PANEL MIRING . RKPLACKD TMO SUTURABLE REACTORS AIN3 REPLACED

PARTS OAHAGEO ON CTI 6 CT2 'MITH PARTS TAKEN FROM SPARE CT . %A-518232

TVASNPI GENERA KKOG000l401

Appl: EPGE

Desc: Emergency Generator

Nfr: P292 - Portec lncllod Nun: L10906

Nod ld

OOI Ol/11/81 Desc: ONING PUVIT SHUTDOMN, SURVEILLANCE INSTRUCTION ( Sl ) 102

FS: Ol/11/81 INOICATEO DIESEL GENERATOR 18-8 BUTTON OUTBOARD BRUSH TENSION MAS OUT

10: 01/11/81 -OF AMUSTNENT .Cause: BUTTON OUTBOARD BRUSH SPRING TENSION HAS OUT OF NQISTIIENT, ROOT

CAUSE UNKNOMN ~

- Action: AMUSTED SPRING TENSION TO READ 3 LBS . PERFN%0 STEP 6 . 2 . 1

ON Sl 102 ANO RKTURNED TO SKRVICE . ( MR 8-225501 )

System: EEB -Emergency Peer-MUtl Sys: 082

65>~ ~~V ~~@V s~wo +h I

IVASNPI GENERA EKOG000l407

Appl: KPGK

Desc: Emergency Generator

Nfr: P292 - Portec Inc

y Nod Neo: L10906

llod Id:

OO: 09/06/85 Oesc: NAMING UNIT I REFUELING OUTAGE . MHILE PKRFORNING A SSWEILUUICK

FS: 06/ll/85 TEST ~ OIESKL GKNKRATOR IB-B START UP TOOK APPROXIHATELY 11, 5

ID: 10/30/89 SECONDS TO CO% UP to 6 . 9KV . EXCEEDING tHE RKqUIREO TI% .Cause: RELAY KIA CONTACTS 'MERE PROBABLY BURNED OR CORRODED ~

Action: CHECKED FIELD FLASH FUSES A% CIRCUIT, AINI CHECKED CANNON PLUG

INSULATION ON THE GOVERNOR . REPLACKD THE BAD RELAY GENERATOR

STARTED UP AT 1 . Ol SECONDS . % A-536288

System: EEB -Eeerymy Peer-MUtl Sys'82

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h

l

Page 185: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant NeIIablllty Data Systole - Failure Brief Report

by: Nanufacturer Nodel Ihs4er, Nanufacturer Nodel IO

Unl t Caay Utl I Ity Caayonent ld Dates Narratl vs

Nun Date! OI/17/91Job Iheben 8215

TVASNPI GENERA EKDG000l401

hppl: EPGE

Desc: Emergency Generator

Nfr: P292 - Portac lncNod Nua: 1,10906

Nod ld:

N: OI/09/86FS: 11/22/85

10: 10/30/89

Descry DURING UNIT I REFUELING OUTAGE NHILE PERFORIIING A SURVEILLANCE

TKST, DIESEL GENERATOR 18-8 DIO NOT NEET TECHNICAL SPECIFICATION

CRITERIA OF REACHING 60 Hl + OR - I ~ 2 Ill TKN SECONDS ~

Cause: I-GENB-BZ-IB-B IDLE SPKEO SETTING NAS SET TOO LOU TO %ET TEST

CRITERIA .Action: AIMUSTEO PNENIATIC BOOSTER NO IDLE SPEED SETTING PER l%

VENDORS INSTRUCT IONS, ALSO AIMUSTKD NINIIRjN-HAXINUNEXCITATION

CURRENT LEVEL POINT PKR VENDORS NANUAL ~ HR 8-105193

System: EEB -Emergency Pouer-H

Utl Sys: 082

TVASNPI GENERA EXDG000l401

Appl: KPGE

Oesc: Emergency Generator

IXI: 05/06/86 Oesc: DURING UNIT I REFUELING OUTAGE, A SURVEILLANCE TEST INOICATEO

FS: 01/16/86 OIKSEL GKNKRATOR 18-8 FRKqUENCT NODULE HAS OUT OF AIMUSTlIENT ~

ID: 10/30/89 Cause: THE FREQUENCY NODULE HAS OUT OF CALIBRATION ~

Action: ADJUSIEO FRKOUKKCT NODULE TO . 120 OHHS . HR 8-12I786

Nfr: P292 - Portec IncNod Nua: L10906

Nod Id:

System: EEB -Emergency Poe -N

Utl Sys: 082

TVASNPI GENERA ElmG0004l07

App'I: EPGE

Desc: bergency Generator

Nfr: P292 - Portec IncNod Noa: LI0906

Nod Id:

Im: 06/13/86 Desc: DURING UNIT 1 REFUELING OUTAGE NILE PKRFORNING A SURVEILLANCE

FS: 05/02/86 TEST, DIKSEL GKNERATOR 18-8 LOADED TO 4000 KH AND DRIFTEO DOVN UNTIL

ID: 10/30/89 LOAD CONTROl BKCA% ERRATIC ~

Cause: BLONI FUSE IN THE LOAD SENSOR POTENTIAL TRANSFN%R CIRCUIT .Action: REPLACED FUSE ( BAF-3 ) ANO NMUSTED THE LOAD GAIN NO DE-DROOP

POINTS . HR 8-IZI3ll

System: KKB -bergency Peer-HUtl Sys: 082

Page 186: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

P,

Page 187: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Reliability Data Systole - Fa'llure Brief NeportBy: Nanufacturer Nodel Noaber, Nanufacturer Nodel ID

Ae Oetec OI/17/glJob Ikskerc 8215

Unit Coup UtilityCcjaponent Id

TVASNPI GENERA MNNOaa07

Appl: EPGE

Desc: Emergency Generator

DDc 08/27/86FS: 07/25/85ID:. 10/30/89

Narratives

Desc> DURING UNIT 1 REFUEl,lNG OUTAGE ~ A SURVEILLANCE TEST ON OIESEI.

GENKRAIOR 18-8 IISICATKO AN ERRATIC LOAD CONTROL ~

Cause: LOAD GAIN NI STABILITY POTENTIOMETER MAS OUT OF ADJIISTIUlT,Action: ADJUSTED POTENTIOHKTER FOR PROPER LOAD GAIN o MR 8-126068

Nfrc P292 - Portec IncNod Nsa: L10906

Nod ld:

System: EEB -E ergency hoer-MUtl Sys: 082

TVASNP1 GENERA EKOGOOOl407

Appl: EPGE

Desc: Eaergency Generator

Nfr: P292 - Portec lncNod Nua: L10906

Hod Id:

N: 08/27/86 Desc: DURING UNIT I REFUELING OUTAGE, A SURVEILLANCE TEST INICATKD= FS: 07/25/85 DIESEL GENERATOR 18-8 STABILIZE FREQUENCY MAS OUT OF SPECIFICATION .

IO: 10/30/89 Cause: THE FRKOUKNCY RESISTOR MAS OUT OF ADJUST%NT .Action: AMUSTKD THE FREqUKNCY RESISTOR TO OBTAIN 60 Hl AIO RKTIWIED TO

SERVICE . MR 8-202103

Systole: EEB -Emergency Pouer-M

Utl Sys: 082

TVASNPI GENERA EKOG0004l07

Appl: 'EPGK

Oesc: Eau.rgency Generator

Nfr: P292 - Portec IncNod X~: L10906

Hod Id:

DDT 01/21/Bl Desc: DURING PUNT SHUTDOMN, MHIL'E PERFORHING A SURVEILLANCE TEST

FS: Ol/10/86 OIKSEL GENERATOR 18-8 HAO A VOLTAGE SHING ~

IO: 10/30/89 Cause: hWLIFIER NNOLE MAS BAD POSSIBI.Y DUE TO NORNAL MEAN .Action: REPLACED HXEL 2301 ANPLIFIER NOULE ~ CLEANED CONNECTNS ON .

BOTH ENGINES . ADJUSTED DROOP SETTING POTENTIOMETER TO DECREASE

LOADING T1% AND RETURNED TO SERVICE . MR 8-218959

Systee: EEB -Emergency Peer-MUtl Sys: 082

Page 188: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

,I1

Page 189: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Rellablllty Data System - Failure Brief ReportByt NanufactIner Nodel Nude', Nanufacturer Nodal ID

Run Datet 01/17/91Job Numen 8275

Unl t Coa4I UtI I Ity Coaponent ld

TVASNI'I GENERA EXOG0004407

Appl: K'PGE

Oesc: Emergency Generator

Nfr: P292 - Portec lncNod lhaa: L10906

Nod Id

Systea: KKB -Emergency Pouer-M

Utl Sys: 082

Dates Narratives

NI 04/20/87 Desc: DURING PLANT SHUTDOHN HHILK PERFORNING SURVEILLANCE INSTRUCTION (FS: 03/I5/87 Sl ) 7 ~ DIESEL GKNFRAlOR 18-8 OIO NOT NEET ACCKPTANCE CRITERIA ~

10: IO/30/89 Cause: OIESEI. GENERATOR IB-B, HHEN STARTKD FNN A SAFETY INJECTION

SIGNAL FOR Sl-7, FAILEO TO ACHIEVE 58 . 8 HKRTZ ( HZ ) ~ DIESEL Ch%

UP TO 57 HZ

Action: OPERATIONS STARTED OIKSEL GENERATOR 18-8 . ELECTRIC NAINTERANCE

SET FRKOUKNCY IO 60 HZ . NEASURKO THE NOTOR OPERATEO POTENTIOMETER

RESISTANCE FOR VAI.UK ANO SET RATKO FREQUENCY RESISTOR ( FRR ) FOR 47 o

88 OHNS . ( HR 8-223548 )

TVASNP2 GENERA EKOG0012801

Appl: KPGE

Oesc: EIaergency Generator

Nfr: P292 - Portec IncNod NIaa: L10906

Nod

ld'O: 09/24/84 Desc: FUSES ON EXCITATION I AREL OF UNIT 2 DIESEL GENERATOR 2A-A IXKPS

FS: 09/24/84 BLOHING AFTER FUSES HAVE BEEN REPLACED ON FV-3 AND FV-4 ~

ID: 10/30/89 Cause: 24 VOLT DC DRIVE NOIOR HAS BURNED OUT .Action: REPIACED 24 VOLT OC DRIVE NOTOR Ali AMUSTEO CAN LINITS ~ IN

A-28480l

System: KEB -Emergency Pouer-H

Utl Sys: 082

TVASNP2 GENERA EIIDG0012801

Appl: KPGK

Desc: EIaergency Generator

DD: 08/27/86 Oesc: DURING UNIT 2 OUTAGE, A SURVEILLANCE TEST INOICATEO DIESEL

FS: 02/15/86 GENERATOR 2A-h HOUl.O NOT LOAD UP OVER 1800 N .

IO: 10/30/89 Cause: SPEED SETTING NNOB HAS BINDING ON THE FACE PLATE .Action: ADJUSTED THE FACK PLAIK TO RELIEVE BINDING . HR 8-126067

Nfr: P292 - Portec IncNod Ruat L10906

Nod ld:

System: EEB -Kaa.'rgency Peer-HUtt Sys: 082

Page 190: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 191: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Nellabl IIty Data System - Failure Brief Report

By: Hanufacturer Hodel Ihaaber, Nanufacturer Hodel ID

Unl t Caep Utl I Ity Ceponent ld Dates Narrat Ives

hs Datet OI/Il/SIJob Howbeit 8275

HLPSTNI GEllERA 3qISIIOG0134-GEN

Appl 'PGEDesc: Kaergency Generator

Nfr: P292 - Portec IncNod Nm: L11102

Hod Id:

00i 04/04/89 Desc: MITH UNIT I SHUTDOMN AIO MITH THE STANNY DIESEL tll OPERATING AT

FS: 04/04/89 FULI. LOAD, THE HIGH PRKSSURK FUEL LINE ON CYLINDER 2k PIN%'MAS

IDt 06/13/90 LEAKING "2 DROPS PKR SECOND . OG-76166

Cause: ROOT CAUSK IS UNNOMN .Action: RKPLACEO HIGH PRESSURE FUEL LINE TO INJECTOR AIO RETURNED TO

SERVICE ~

System:

EEB -Emergency Poe'-MUtl Sys: OG

APSPAVI GENERA IEPEAGOI

Appl: EPGE

Desc: Kmrgency Generator

Nfr: P292 - Portec IncNod Nua: TYPE L-11094

Hod Id:

System: KED -Emergency Pouer-CE

Utl Sys: PE

Im: 04/01/90FS: 04/01/90

10: ll/13/90

Oesc: DURING A CORRECTIVE IIAINTENANCKACTIVITYN T% TRAlll A

E%RGENCY DIESEL GENERATOR, THREE [ 3 ) OF THE TOP NNNTING bOLTS FOR

THE CAGE OF THE SHROUD ASSEISLY MERE STRIPPED OUT . THE BOLTS AIO NUTS

SERVE ONLY TO HOLD MIRK ASH SCREKN ON GENERATOR END FOR VENTILATION'F

GENERATOR . THE FASTNERS AIO SCRKKN SERVE ONLY FOR PERSONNEL SAFETY

. GENERATOR MAS OECLARKD INOPERABLE DURING SCREEN REPAIR

Cause: THE CAUSE MAS DUE TO THE BOLTS BEING OVER STRESSED OIWING

TIGHTKNING ~ THE CAUSE OF FAILURE MAS OUE TO HUHAN ERROR ~ THE SHROl8

ASSKHBLY IS A PIKE PART OF THE GKNERATOR . THE TRAIN MAS DEGRADED BUT

OIO NOT AFFKCT SYSTEN OPERATION ~

Action: THE MELO SHOP INSTALLKO NEM RETAINING NUTS . THE COVERS MERE

INSTALLKO MITH NEM BOLTING BEING OF LIKE KIND . ( 00434898 RF )

Zy+4 Cf@t tc. S~I/res cO. P~Lo I/~~APSPAV2 GENKRA 2KPKBG02

Appl: EPGE

Desc: Emergency Generator

Nfr: P292 - Portec IncHod Nm: TYPE L-11094

Hod Id:

UO: 05/28/81 Desc: UNIT MAS AT NORHAL OPERATING POMER ~ WNG NNSNL PREVENTIVE

FS: 05/28/81 HAINTENANCE ON THE DIESEL GKNERATOR A BROKEN BRUSH ON THE TOP MEST

IO: 09/I2/81 INNER RING MAS FOUND ~

Cause: UNNOMN .

Action: REPLACED THE BROKEN BRUSH MITH ONK FWN UNIT 3 ~

System: EEO -Emergency Pouer-CE

Utl Sys: PE

8/ff h e r.m ar. '7

Page 192: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 193: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Nelfabfllty Data System - Failure Brfuf ReportByi Itanufacturur Ilode1 liber, Nanufacturer Hodel ID

Run Dates Of/l7/91Job Ihsben 827$

Unlt Case Utl1 Ity Caeponent ld Dates Narrat Ives

PPLSESI ICNTRL OC519B

Desc:

Nfr: P292 - Portec IncHod Nsa: 72-10400-100

Nod Id:

System: EEA -Emergency Pouer-GE

Utl Sys: 024

DO 09/28/86FS: 09/28/8610: Ol/10/90

Oesc: MHILK UIIIT 1 MAS AT 100% POMER hM) UNIT 2 IN REFUELING, THE

SURVEILLANCE TKST " OFFSITK POMER SOURCE lUO ONSITE CLASS IEOPERABILIIY TEST 50-024-013 MAS BEING PKRFORNEO . THK OPERATOR MAS

UNABLK TO AMUST THE VOLT-AHPERKS REACTIVE THUS HAVING TO SHUT THE'B'IESEL

DOMN .Caus~: lOTUR DRIVEN POTENTI(%TER INOEL FPOP-4 VOC IOTOR COUPLING HJO

BKC0% lOOSE . THE ROOT CAUSE MAS DETERHINKD TO BE THE DESIGN OF THE

SKT SCREM AND SHAFT HATING JV1ICTION ( THE SHAFT SURFACE IS TOO ROUNDED

fOR A G000 TIGHT FIT ) .Action: THE TKHPORARY FIX MAS TO TIGHTEN THE SET SWS ON THE COUPLING

BUT THK REPLACKHENT KqUIP%NT FOR THE POP-4 MILL HAVE THE SHAFT

HOOIFIED SUCH THAT THK SHAFT MILL HAVE A FLAT NOTCH HADE FOR THE SET

SCRKM TO HATE MITH .

PPLSESI ICNTRL OC5198

Appl:Desc:

Nfr, P292 - Portec lncHod Nw: 12-10400-100

Nod Id:

System: EEA -Kua.rgency Pee -GE

Ut I Sys: 024

00: 01/18/86FS: 01/03/86ID: Ol/10/90

Desc: MHILK UNIT 1 MAS AT 100'N UNIT 2 MAS AT Ot PSSt THE

SURVEILLANCE TEST" OFFSITE POMER SOURCE AIO ONSITE CLASS 1K

OPERABILITY TEST " 50-024-013 'MAS BEING PERFORHEO ~ THE OPERATOR MAS

UIIABLE TO ADJUST THE VOLTS AHPKRES RKACTfVE THUS HAVING TO SHUT THE

"C" DIESEL DOMN .Cause: THE GENERATOR VOLTAGE RKGULATOR IOTOR DRIVEN POTENTIOMETER'5

IIODEL IPOP-4 HOTOR COUPLING HAD DISCONNECTED FROH THE POTENTIOMETER e

IT IS BELIEVED THAT tHE COUPI.ING CA% IOOSE DURING THIS TKST ~

Action: TEHPORARILY THE COUPLING SKT SCREM MAS TIGHTENED . AS SOON AS

POSSIBLK, THE PDP-4 UNIT MILL BK REPLACED o

FPLSL52 ICNTRI. 2A-VAR

Appl:~ 0 sc:

lift". P292 - Portec IncHod Nm: 12II40010

Hod Id:

OO: 12/25/89F5'2/25!89ID: 03/09/90

Desc: THE CONTROL RON REPORTED THAT THE 2A OIESKl. GENERATOR ( OG ) MAS

OUT OF SKRVICK OUE TO FLUCTUATIONS IN THE VOLTAGK RKGULATOR CONTROLLER

. NO IIMIEOIATE EFFECT ON PLANT .Cause: IT MAS DKTERHINKO THAT COMPONENT 'IR'N THE HAIN PRINTED CIRCUIT

BOARD MA5 I.OUSE . CAUSE UNXIIOMN .Action: IR MAS RKSKAIEO AIIO THK OG MAS RETURNED TO SEVICK ~ WOI7484

TI01 / 2

System EEO -Emergency Pouer-CK

Page 194: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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Page 195: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

Nuclear Plant Rellablllty Date Systee - Failure Brief Report

Sys Hanufacturer lbdel Nuaber, Hanufacturer lbdel ID

Run Octet 01/17/91Job Nuebe! 827$

ESQUnit C

GSURSSI ICRTRL

APPI T

Desc:

llfr: P292 - Portec IncIbd Nua: 7213000100

Nod Id:

System: EKA -agency Pouer-GE

Utl Sys: EHS/309

'Utl I lty Coeponent Id Dates Harrat Ives

IKCS'VRIb Imi 10/21/90 Desc! DURING RKFUKLIHC OUTAGE 3 . AFTER ~LETIN OF OUTRE INIRTKIIANCE

FS! 10/2!/90, 'B'IESEL GENERATOR HAS STARTED FN A TEST RUH . RKGUIATOR WEIO: 11/28/90 SUPPRKSSOR ( PIKCE PART ) BURRED DUE TO HIGH CURRENT FLOH ~ THIS

RESULTED IN A LOSS OF THE TRAIK BECAUSE THE RKGULATN lthS URABLE TO

PROVIDE FIElD EXCITATIOH lNICH PREVENTS THE DIKSEL GENERATOR FRN

SUPPLYING THE 'O'%RGKRCY AC ELECTRICAL %5 . RO PUNT EFFECT e

Cause: OPERATOR SHUT DIESEL GENERATOR 'B'UTPUT BRKNKR APPROXIHATKLY

90 DEGREES OUT OF PHASE HHICM. CAUSED EXCESSIVE CURRENT FLOU III THE

REGULATOR CIRCUIT, BURNING THE SURGE SUPPRESSOR ~ THIS FAILURE HAS

OUE TO OPERATOR ERRN ~

Action: THE SINGE SUPPRKSSN HAS REPLACED NITH A DIFFKRKRT INOEL ~ (SINCE A LIKE FOR LIKE COULD HOT BE FOUIO M!THIN A ACCEPTABLE TI%

FRAHE ) FROH THE ORIGIHAL VKllOOR, HHICH HAS SIHILAR OPERATING

CHARACTERISTICS . A HOOIFICATIOH ( N 90-0137 ) HAS APPROVED TO

PROCURE, IHSTALL A% TEST THE RKM SURGE SUPPRKSSN ~ THE DIESEL

GKRKRATN 'O'AS FUHCTIORALLY TESTED SATISFACTORILY e ( R056635 )

Page 196: 'Evaluation for NEI Peebles Electric Products.'Peebles (NEI Parson Peebles) of Great Britain bought EPI in 1979 and renamed it Parson Peebles EPI. The manufacturing operations of parson

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