HIGH VOLTAGE SWITCHGEAR & AUTOMATION …...CAT. NO: 040930G May, 2008 INERTIA Engineering & Machine...

CAT. NO: 040930GMay, 2008

INERTIA Engineering & Machine Works, INC. Fax: (209) 931-81866665 Hardaway Road, Stockton, CA 95215 e-mail: [email protected] (800) 791-9997

HIGH VOLTAGE SWITCHGEAR & AUTOMATION EQUIPMENT

Section 1. GENERAL INFORMATIONAbout INERTIATerms & Conditions of Sale, Warranties

Section 2. OVERHEAD DISTRIBUTION SWITCHESLineBOSS™ 15 kV - 35 kV Sidebreak GOAB SwitchLineBOSS™ Fax-back Design FormLineBOSS™ Attachment (Loadbreak) Information

Section 3. OVERHEAD TRANSMISSIONLineBOSS™ 46 kV - 69 kV Sidebreak GOAB SwitchLineBOSS™ Fax-back Design Form

Section 4. SPECIALTY SWITCHESLineBOSS™NBS 5 kV - 25 kV Non-interruptingRegulator By-Pass Switch

LineBOSS™GBS 5 kV - 25 kV 900 Amp, LoadbreakGrounding Switch

Section 5. SWITCH AUTOMATION EQUIPMENTMSO Motorized Switch OperatorsDistribution and Transmission

Section 6. BRACKETS, MOUNTS & MISC. HARDWAREInsulator Brackets for Overhead LinesVault Brackets and Junction CabinetsEquipment Mounting Brackets & Flexible JumpersMisc. Hardware and Switch Parts

CONTENTSCatalog No: 040930G

Section 1 GENERAL INFORMATION• About INERTIA Engineering & Machine Works, Inc.• Terms & Conditions of Sale and Warranties

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INERTIA Engineering & Machine Works, Inc. Tel: 800-791-9997 E-mail: [email protected] Hardaway Road • Stockton, CA 95215 Fax: 209-931-8186

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WHY INERTIA?

Aristotle postulated the connection between force and motion in 350 B.C. Galileo furthered theseviews some 2000 years later. Sir Isaac Newton formalized the concept in 1687. The first of thethree laws of motion is the Law of Inertia. The law of inertia states that a body, or mass in motionwill continue in that motion until an outside force acts upon it to cause a reaction. Likewise, anobject at rest will remain at rest without an external influential force.

Perspective is the key to inertia. Which force is being acted upon, and which is causing thereaction, the inertia of both bodies is changed by their contact with one another. Inertia Engineeringand Machine Works strives to be the force of change while reacting to industry needs. We trustthat our products will change and improve technology that will make positive impacts on theelectrical power distribution industry.

BACKGROUND

Established in 1995, Inertia Engineering and Machine Works, Inc. is a manufacturer of mediumand high voltage switchgear, automation products and specialized equipment and componentsfor the electrical power distribution industry. The Inertia team has over 150 years of experience ofengineering and manufacturing switchgear and automation equipment.

MISSION

INERTIA Engineering & Machine Works, Inc. is a manufacturing company dedicated todeveloping better product solutions for the electrical power industry. We are committed to producethe highest quality and deliver those products with superior service and support, providingexceptional value to our customers.

This catalog is a living document that represents some of the products offered by INERTIAEngineering & Machine Works, Inc. The information herein is not intended to be all encompassingand fully comprehensive representation of all of the products and services offered by INERTIAEngineering & Machine Works, Inc.

GENERAL INFORMATION

1.1


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1. ACCEPTANCE OF ORDERS. All orders are subject to acceptance by Inertia Engineering Inc., Stockton,California (Seller). Seller agrees to sell, and Buyer agrees to buy, products (the “Goods”) in accordance with theterms and conditions of this Contract. Acceptance of the goods shipped shall constitute assent to sellers condi-tions of sale. This document may be superseded by any inconsistencies involving formal bid and award contractssigned by an officer of the Company.

2. PAYMENT. Payment shall be made to Inertia Engineering, 4690 E. Waterloo Rd., Stockton, California 95215.Payment terms are net 30 days or one-quarter of one percent (0.25%) cash discount if paid within10 days from the date of invoice. The seller retains a security interest in the goods until full payment has beenreceived. Seller reserves the right to modify the payment terms at its sole discretion, and is entitled to cancel ordefer shipment on outstanding orders without obligation by either purchaser or seller. If any invoice is not paid whendue, interest will be added to and payable on all overdue amounts at 18.00 percent per annum, or the maximumpercentage allowed under applicable laws, whichever is greater. Buyer shall pay all costs of collection, includingwithout limitation, reasonable attorney fees.

3. DELIVERY. United States except Alaska and Hawaii (contiguous states). Seller will arrange for delivery bycarrier chosen by Seller. Prices are F.O.B. common carrier shipment point, with transportation prepaid and allowedunless otherwise specified in writing in buyer’s purchase order, or seller’s acceptance.

4. TITLE/RISK OF LOSS UNDER F.O.B. The Goods shall be delivered F.O.B. shipping point. Risk of loss shallpass to the purchaser upon delivery to the common carrier at point of shipment. Seller will assist purchaser inresolving any claims for loss or damage.

5. PAYMENT OF TAXES. Buyer agrees to pay all taxes of every description, federal, state, and municipal, thatarise as a result of this sale, excluding income taxes. It is the buyers’ responsibility to provide seller with valid salestax exemption certification for purchases exempt from sales taxes. All applicable taxes will be added to the invoiceas a separate item.

6. WARRANTIES. Seller warrants to Buyer that the Goods will conform substantially to the applicable drawingsor design standards. The seller warrants that Goods shall comply with industry standards, and will be fit for theordinary purpose for which the goods are used: will be free of material and workmanship defects under proper usefor a period of two years from the date of shipment. Upon confirmation that the equipment has been stored,operated and maintained in accordance to sellers recommendations and industry standard practice the selleragrees to correct any nonconformity that may arise during the 2 year period either by repairing or (at seller’s option)by replacement of the nonconforming equipment. The foregoing shall constitute purchasers exclusive remedy anda fulfillment of seller’s liability with respect to this equipment. NO OTHER WARRANTY, WHETHER EXPRESS ORARISING BY OPERATION BY LAW, COURSE OF DEALING USE OF TRADE OR OTHERWISE IMPLIED, SHALLEXIST IN CONNECTION WITH THE COMPANY’S PRODUCTS OR ANY SALE OR USE THEREOF. Seller’s liabil-ity, if any, for defective Goods, is limited to replacement, repair or refund of the defective Goods, at Seller’s option.The Seller’s warranty does not apply to major components not of Inertia Engineering’s manufacture. Seller willassign to purchaser all warranties of other manufacturers’ major components. In addition, any “non-INERTIAbranded” components or non-INERTIA authorized components affixed to an INERTIA switch expresslyvoids the switch warranty.

7. INSPECTION. The Buyer, upon receiving possession of the Goods, shall have a reasonable opportunity toinspect the Goods to determine if the Goods conform to the requirements of this Contract. If the Buyer, in goodfaith, determines that all or a portion of the Goods are nonconforming, the Buyer may return the Goods to the Sellerat the Seller’s sole discretion. The Buyer must provide written notice to the Seller of the reason for rejecting theGoods within 15 days of receipt of the Goods. The Seller will have 60 days from the return of the Goods to remedysuch defects under the terms of this Contract.

Terms & Conditionsof Sale and Warranties

Effective: January 01, 2008

1.2

8. REMEDIES ON DEFAULT. In addition to any and all other rights available according to law, if either partydefaults by failing to substantially perform any material provision, term or condition of this Agreement (includ-ing without limitation the failure to make a monetary payment when due), the other party may elect to termi-nate this Agreement if the default is not cured within 30 days after providing written notice to the defaultingparty. The notice shall describe with sufficient detail the nature of the default.

9. FORCE MAJEURE. Seller will not be liable for any delay in shipment or performance or any obligationwhich is prevented, restricted, or interfered with by causes beyond either party’s reasonable control (“ForceMajeure”), and if the party unable to carry out its obligations gives the other party prompt written notice ofsuch event, then the obligations of the party invoking this provision shall be suspended to the extent neces-sary by such event. The term Force Majeure shall include, without limitation, acts of God, fire, explosion,vandalism, storm or other similar occurrence, orders or acts of military or civil authority, or by national emer-gencies, insurrections, riots, wars, strikes, lockouts, work stoppages, other labor disputes, or supplier failures.

The excused party shall use reasonable efforts under the circumstances to avoid or remove such causes ofnonperformance and shall proceed to perform with reasonable dispatch whenever such causes are removedor ceased. An act or omission shall be deemed within the reasonable control of a party if committed, omitted,or caused by such party, or its employees, officers, agents, or affiliates.

10. CONFIDENTIALITY. Both parties acknowledge that each may obtain confidential information regardingthe other party’s business. Both parties agree to treat all such information and the terms as confidential andto take all reasonable precautions against disclosure of such information to unauthorized third parties. Uponrequest by an owner, all documents relating to the confidential information will be returned to such owner.

11. NOTICES. Any notice or communication required or permitted under this Agreement shall be sufficientlygiven if delivered in person or by certified mail, return receipt requested, to the addresses listed above or tosuch other address as one party may have furnished to the other in writing. The notice shall be deemedreceived when delivered or signed for, or on the third day after mailing if not signed for.

12. ASSIGNMENT. Neither party may assign or transfer the rights of the first purchaser the Goods withoutprior written consent of the other party, which consent shall not be unreasonably withheld.

13. ENTIRE AGREEMENT. This Agreement contains the entire agreement of the parties regarding thesubject matter of this Agreement, and there are no other promises or conditions in any other agreementwhether oral or written.

14. SEVERABILITY. If any provision of this Agreement shall be held to be invalid or unenforceable for anyreason, the remaining provisions shall continue to be valid and enforceable. If a court finds that any provisionof this Agreement is invalid or unenforceable, but that by limiting such provision it would become valid andenforceable, then such provision shall be deemed to be written, construed, and enforced as so limited.

15. APPLICABLE LAW. The laws of the State of California shall govern this Agreement.

1.21

OVERHEAD DISTRIBUTION SWITCHES

• LineBOSS™ 15 kV - 35 kV Sidebreak GOAB Switch 2.11

• LineBOSS™ Request for Quote Fax-back Form 2.12

• Air-BreakSwitch Attachment (Loadbreak) Information 2.13

• LBS 15 kV - 35 kV Feature/Benefit Overview 2.15

• LBS 15 kV - 35 kV Specification Elements 2.16

• LBS 15 kV - 35 kV Configuration Drawings9225M LBS, 15 kV - 35 kV SINGLE-PHASE dimensions 2.179226M LBS, 15 kV - 35 kV HORIZONTAL dimensions 2.189241M LBS, 15 kV - 35 kV HORIZONTAL, Underarm dimensions 2.199185M LBS, 15 kV - 35 kV RISER dimensions 2.209184M LBS, 15 kV - 35 kV, VERTICAL (phase-over-phase) dimensions 2.219239M LBS, 15-35 kV, TAP SWITCH (1, 2 & 3-way) dimensions 2.229227M LBS, 15-35 kV DELTA (pole top), dimensions 2.239298M Hook-stick Operating Mechanism, Crossarm mounted 2.249374M LBS, 15 kV - 35 kV, VERTICAL (tiered outboard) dimensions 2.259382M LBS, 25 kV, TWIN TAP RISER, Pole Mounted dimensions 2.269228M LBS, 25 kV, TWIN TAP RISER, Substation Mounted dimensions 2.27

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LineBOSS™

15 kV-35 kV Sidebreak Type,Unitized GOAB Switch

The LineBOSS™ Sidebreak switch is the most robust,yet elegant sidebreak switch in the market today. Ev-ery LineBOSS™ component brings meaningful opera-tor benefits for years to come. Features such as 1/4inch steel phase base, stainless steel to brass bear-ings, silver plated copper reverse loop contacts andbusbar blades mean efficient and smooth operationover a very long life; even in hostile environmentswhere dust, humidity, corrosives and other industrialor natural contaminants play havoc with most. You’llbe amazed with how much switch you can buy for themoney. The LBS distribution switch is RUS accepted.

Inertia- moving power with passion and innovation!

SPECIFICATIONS

Switch Ratings:Voltage Class: 15.5 kV, 25.8 kV & 38 kVContinuous Current Class: 600, 900, 1200 AmpsFault Close: 15 kA rms-asym: 5 X manual operation

20 kA rms-asym: 3 X manual operation30 kA rms-asym: 2 X manual operation

Momentary current: 600 A: 40,000 A rms 10 cycles25,000 A rms 3 seconds

900 A: 51,000 A rms 10 cycles32,000 A rms 3 seconds

1200 A: 70,000 A rms 10 cycles44,000 A rms 3 seconds

Ice breaking: 3/4” (manual operation)Mechanical: 5000 cycles (open/close)

Tested in accordance with IEEE Std. C37.34-1994ANSI/IEEE Std. 37.71-1984 and IEC Std. 265-1,1983.

Loadbreak Devices:

Arc HornsQuickbreak Whip AttachmentsArc Chute Load BreakAmpRupter Load BreakAmpVac Load Break*See data sheet “AIR-BREAK DISCONNECT SWITCH

ATTACHMENT SELECTION INFORMATION” for loadbreakdescriptions and specifications

STANDARD FEATURES

• Resilient, higher BIL silicone rubber insulators• Reverse loop silver plated copper jaw contacts• Maintenance free stainless steel/brass bearings• Unitized construction: aluminum, steel or fiberglass• Factory adjusted, ready to mount• Meets all applicable NEMA and ANSI standards• All ferrous components are hot dip galvanized• Tinned copper terminal pads

15 kV horizontalwith reciprocatingcontrol with fiber-glass crossarm

STANDARD CONFIGURATIONS

• Horizontal (upright) • Horizontal (underarm)• Horizontal (center mount) • Riser• Vertical (tiered outboard) • Delta (pole top)• Vertical (phase over phase)

See opposite side of this page for illustrations and selection.

Crossarm Ratings:Crossarm Material Dead End LoadingGalvanized Steel (standard duty) 2000 lbs/phaseGalvanized Steel (heavy duty) 6000 lbs/phaseAluminum (standard duty) 1500 lbs/phaseAluminum (heavy duty) 3000 lbs/phaseFiberglass (standard duty) 1000 lbs/phaseFiberglass (heavy duty) 2500 lbs/phase

All materials: equal loading, each side of switch is12000 lbs. max. Ratings shown are for 25 kV switch

ACCC Designation DO6Loadability factor 1.22 at 25 Deg. C.

2.11

LineBOSS™ Selection Guide (15 kV-38 kV)

LineBOSS™ Standard Configurations

2.11.1

Note: Consult the factory for any options not listed, including; arrestors, sensors, support brackets etc.A Fax-back form can be found on the next page. Copy, fill-out and fax it back with your requirements.

VERTICAL (phase over phase) VERTICAL (tiered outboard)

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Unitized SidebreakLine Switch


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LineBOSS switches are ANSI rated switches. The LineBOSS Lx6xxxxx is rated 600 Amps continuous current per the ANSI C37.30 temperaturerise test requirements, and for 900 Amp continuous current per the IEEE 1247 temperature rise test requirements. The LineBOSS Lx9xxxxx is rated900 Amps continuous current per the ANSI C37.30 temperature rise test requirements. The LineBOSS Lx1xxxxx is rated 1200 Amps continuouscurrent per the ANSI C37.30 temperature rise test requirements. Momentary current ratings (10 cycle) are: Lx6xxxx 600 A (ANSI C37.30) = 40 kA

Lx9xxxx 900 A (ANSI C37.30) = 51 kALx1xxxx 1200 A (ANSI C37.30) = 70 kA

Make copies of this form to transmit your switch requirements. If you have your own standard’s drawing,please fill out the customer information and send it with this fax form.

Step1. Voltage Class ______kV Continuous current rating : _______A Momentary current_______kA

Step 2. Insulator type (circle one): Silicone Porcelain One BIL class higher?______

Step 3. Interrupter type (circle one): None ArcHorn ArcWhip ArcChute AmpRupter AmpVac

Step 4. Crossarm type (circle one): Galvanized steel Fiberglass Aluminum

Step 5. Select the configuration (circle one) and specify spacing dimensions, if necessary:

“A” ________ “B” ________ “C” ________ “D” ________ “E”________

Step 6. Select the control mechanism : Reciprocating ( ) Torsional ( ) Clockwise or Counterclockwise Hookstick to open; viewed looking down on the handle

Step 7. Select control location: Specified location; quadrant ________

________________________________________________Company Name

________________________________________________________________________________________________Address 1

________________________________________________Address 2

________________________________________________City StateZip code

___________________________________Contact Name

________________________Telephone Number

________________________Facsimile Number

_____________________________E-mail address

LineBOSS™

2.12

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Distribution Switch Fax-BackForm for Price Quotations

(209) 931-8186

circle one

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Step 8. Select control rod (circle one): Galvanized pipe: ¾” 1” 1½” other________

Fiberglass: 1” round 1¾” square other________

Step 9. Select control rod length (circle one): 30 ft. 40 ft. other___________

Step 10. Select additional accessories and modifications (check off and write in)

“Interrupter Latched” indicator reflective flags (as viewed from directly under the crossarm; Yellow flagsindicate CAUTION, an open or improperly closed switchi.e. interrupter not latched)

Provision for Neutral (4-wire)

Pole mounting bands; Specify _____________________________________

Substation mounting: Specify base mounting dimensions or furnish drawing.

Surge Arrestor brackets set of 3 arrestor brackets set of 6 arrestor brackets

Extension links: set of 6; each 6” long set of 6; each 14” long

Terminals: Terminal paddle for fired wedge connectors ______________________(specify size)Terminals, 2-hole copper NEMA pad #2-500 kcmil ( 600 & 900 A switch) Specify:_______Terminals, 4-hole copper NEMA pad 500-750 kcmil (1200 A switch) Specify: _________Terminals, other; ______________________(specify size)

Sensor Brackets; 1 set of 3 brackets

Current/Voltage Sensors: 3 each of . . . . Current Voltage Current/Voltage

Fiberglass section in pipe control rod: 1” round fiberglass 1¾” square fiberglass

Station post insulator in control rod section

Intermediate control rod guides Oval-eye Nuts Swing-arm type

Bonded handle Grounding connector on crossarm __________ AWG range

Key Interlock - single key for circuit switching safety (“locked open”)

Crossarm Braces Galvanized Steel Fiberglass

Lifting Points Single Double

Notes/Sketches

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LineBOSS™

AIR-BREAK DISCONNECT SWITCHATTACHMENT SELECTION INFORMATION

The Inertia AmpRupter utilizes expulsion tube interrupter technologyto break current loads up to 900 amps at 27 kV. It is used for load-break, loop break, line charging and cable charging switchingoperations. The AmpRupter was tested to IEEE 1247-1998 IEEEStandard for Interrupting Switches for Alternating Current Rated Above1000 Volts. The mechanical life of the AmpRupter is 2,500operations. The electrical life of the AmpRupter is dependant on theamount of load interrupted.

AmpRupter load interruption occurs as the switch blade leaves the contact clip; making contact with the catcharm. At this point, current is shunted through the actuator arm, through the contacts to the load side. As theblade continues towards its open position, the internal spring powered mechanism trips; breaking the internalcontacts. This action evolves a pressurized non-conductive gas that extinguishes the arc. This process occurswithin one half cycle (first zero crossing), and will not “chop” the current upon circuit interruption. The speed ofthe AmpRupter mechanism is not dependent on the switch operating speed, insuring that the load breakingcapabilities are consistent regardless of switch opening speed. The AmpRupter automatically resets for thenext operation. The AmpRupter is not in the current path during the switch closing operation, and has no faultclosing capabilities. The AmpRupter is in the current path during the switch opening operation only.

LineBOSS™ Selection Guide suffix “L”

AmpRupter™

LineBOSS™ Selection Guide suffix “V”

V2 (2-gap vacuum Interrupter)V3 (3-gap vacuum Interrupter)

The V2 and V3 vacuum Interrupters are two-gap and three-gap load-breaking devices, that utilize vacuum bottle technology. V2 vacuuminterrupters, with two vacuum bottles in series, can break loads upto 2000 Amps at 48 kV. V3 vacuum interrupters, with three vacuumbottles in series, can break loads up to 2000 Amps at 69 kV. Vacuumbottle interrupters are not in the current path during the switch closingoperation, and have no fault closing capabilities. The mechanicaland electrical life of the V3, 3-Gap vacuum interrupter is 5000operations at full load.

LineBOSS™ 46 kV - 69 kV Selection Guide suffix “V2”& “V3”

2.13

The AmpVac is an enclosed vacuum bottle interrupter where nogases are vented to the atmosphere. The AmpVac interrupter hasmuch higher interruption capabilities than other load break devices.Single contact AmpVac interrupters break loads up to 1500 amps at35 kV. Single vacuum bottle interrupters may be used at increasedvoltages for parallel or loop switching applications as long as thepeak recovery voltage does not exceed 38 kV. The mechanical andelectrical life of the AmpVac is 5000 operations at full load. TheAmpRupter was tested to IEEE 1247-1998 .AmpVac™

ArcWhip

LineBOSS™ Selection Guide suffix “Q”

ArcHorn (not an interrupter)

LineBOSS™ Selection Guide suffix “A”

Vacuum Bottle Interrupter Applications:Type of Switching AmpVac, 1-Gap Vacuum Interrupter V2, 2-Gap V3, 3-Gap

15.5 kV 25.8 kV 38.0 kV* 48.3 kV* 72.5 kV * 38.0 kV 48.3 kV 48.3 kV 72.5 kVLoadbreak, 70% PF 1500 A 1500 A 1500 A 1500 A 1500 A 2000 A 2000 A 2000 A 2000 AParallel Break < 30% PF 1500 A 1500 A 1500 A 1500 A 1500 A 2000 A 2000 A 2000 A 2000 ACable Charging 1500 A 950 A 100 A 7 A** 3 A** 600 A 450 A 600 A 70 AMagnetizing 1500 A 1000 A 300 A 7 A** 3 A** 700 A 700 A 800 A 600 ACapacitor Bank,(grnd. neut.) 1500 A 950 A 100 A 7 A** 3 A** 600 A 700 A 800 A 600 A

2.14

ArcChute (Delrin “Clapper”)

The ArcChute Interrupter is a minimal load-breaking device thatutilizes air break technology. The arc is quenched as the two Delrinarc chute plates close and the arc whip breaks away establishingthe required metal-to-metal open gap. Arc Chute interrupters arewidely used for line charging and magnetizing current interrupting.Full loadbreak and parallel breaking currents up to 150 amps at21kV or 20 amps at 34.5kV are common applications. Arc Chuteinterrupters are only in the current path during the opening processand have an average life of 150 operations.

LineBOSS™ Selection Guide suffix “H”

The ArcWhip has a small interrupting rating of between 10 and 20amps. ArcWhips can clear arcs from residual energy stored incapacitor banks, transformers or conductors. ArcWhips are only inthe current path during switch opening operations, and have anaverage life of 150 open operations.

The Arc Horn is not an interrupter and has no ratings. It is used asan arc deflecting mechanism to save the life of switch blades andcontact clips. The ArcHorn, also known as “sacrificial arcing horn”,is the first point of contact during switch closing operations. Theinitial making current during a closing operation creates small arcs;pitting the arc horns. This “sacrificial” mechanism helps preventdegradation of the main contacts. The Arc Horn is used to redirectthe arc resulting from residual or stored charge left after a down-linecircuit is opened. Arc Horns will not prevent damage from theinadvertent opening of a loaded switch.

* Recovery voltage between source and load must be less than 38 kV, immediately.** Higher current rating available with use of a voltage limiter; Consult the factory for details.

Interrupter Attachment Device Applications:Type of Switching ArcHorn ArcWhip ArcChute AmpRupter™

Loadbreak, >70% PF NA NA 15kV : 150 A 15 kV : 900 A21 kV :100 A 23 kV : 900 A35 kV : 20 A 34 kV : 600 A

Parallel Break (Loop) NA NA` 15kV : 150 A 5 kV : 900 A< 30% Power Factor 21 kV : 100 A

35 kV : 20 ACable Charging NA up to 72.5 kV : 15 A up to 72.5 kV : 15 A 27 kV : 26 ALine Charging NA up to 72.5 kV : 3500 kVA up to 72.5 kV : 3500 kVA 23 kV : 6.2 AMagnetizing NA NA NA 27 kV : 2.7 A

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Busbar gradecopper contactcomponents.

Busbar grade copper contact components are structurally superiorwith greater conductivity than cast contact material. Cast alumi-num and copper bronze contact castings are 34-36% conductiveand often contain unseen surface irregularities and voids that cre-ate ‘hot spots’. Busbar grade C110 copper is 99% conductive andis many times smoother to provide better terminal connection sur-faces and is not subject to unseen porosity. With this contact sys-tem, the LineBOSS has achieved the highest momentary and faultclose ratings in the industry. Momentary: to 70 kA for 10 cycles and44 kA for 3 seconds. Fault close: 30 kA (2X)

FEAFEAFEAFEAFEATURETURETURETURETURE BENEFITSBENEFITSBENEFITSBENEFITSBENEFITSMany manufacturers use 7 gauge (3/16”) steel bases that can flexduring normal operation, causing blade-to-clip misalignment.Some rotating insulator spindles and bearings are supported solelyon the 3/16” thick phase base surface. The spindle and its bearingshould be supported at both the phase base surface and the end ofthe spindle opposite the blade. A 1/4” thick base supporting therotating stack at two points assures a robust construction that main-tains the blade to contact alignment throughout the life of the switch.Some rotating insulator spindles are made of zinc chromate platedsteel which can rust. Others use cast aluminum which is inexpen-sive, but has poor wear characteristics and does not have thestrength of steel. Switches can come out of contact adjustment if aspindle bearing fails. The added benefit of stainless steel and brassensures a long reliable switch life.Bearings in the bellcrank reduce the force required to operate theswitch and eliminate corrosion due to plated metal-to-metal wear.

1/4” hot-rolledsteel phase base

ANSI TR2xx series,3” bolt circle stationpost insulators areprovided in siliconeor porcelain.

Insulator Type Load Ratings: B.I.L. Rating(25 kV example) Cantilever Torsion Peak3” BC silicone 1,200 lbs. 6,000 lbs. 165 kV3” BC porcelain 2,000 lbs. 7,000 lbs. 150 kV2¼” BC porcelain 1,000 lbs. 3,000 lbs. 150 kV2¼” BC epoxy 1,200 lbs. 5,000 lbs. 150 kV

These insulators have superior mechanical characteristics over 2¼”BC insulators. Silicone insulators have additional BIL, leakage andweatherabilty ratings over either porcelain or epoxy insulators.

Often, switch manufacturers use cast clamps to connect the inter-phase rod to the rotating stacks. This clamping method has onefixed side and only one open side to pinch the interphase rod. Theinterphase rod clamp is the device that assures uniform operationof the three switch phases. Any slippage results in an improperlyadjusted switch, with not all phases fully closed into the contacts.The LineBOSS uses formed two-piece clamps to compress the in-terphase rod surface with significantly more distributed pressure.This helps to maintain uniform operation of all three phases through-out the life of the switch.

Formed inter-phase rod clampswith two-boltclamping.

Stainless steel/brass bearings inthe bellcrank

Stainless steel-brass bearings onrotating stacks

Rotating insulatorshaft support

LineBOSS™

15 kV - 35 kV, 600 - 1200 AmpSidebreak Style SwitchFeatures and Benefits

Specify these Inertia LBS features for longer service-life switches.

2.15


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Switch RatingsVoltage Class:15.5 kV, 25.8 kV and 38.0 kV

Current Class: 600, 900 and 1200 A continuous

Fault Close: 15 kA rms-asym: 5 X Manual Operation20 kA rms-asym: 3 X Manual Operation30 kA rms-asym: 2 X Manual Operation

Momentary current: 600 A: 40,000 A-rms 10 cycles25,000 A-rms 3 seconds

900 A: 51,000 A-rms 10 cycles32,000 A-rms 3 seconds

1200 A: 70,000 A-rms 10 cycles44,000 A-rms 3 seconds

Ice breaking: ¾” (manual operation)

Mechanical: 5000 Open/Close cycles

ACCC Designation DO6Loadability factor 1.22 at 25 Deg. C.(not applicable to loadbreak devices)

Loadbreak Device RatingsAmpVac Loadbreak: 12 kV through 35 kV Load Current: 1500 A-rms Parallel Current: 1500 A-rms Cable Charging: 600 A-rms Magnetizing Current: 600 A-rms

AmpRupter Loadbreak: Load Current: 900 A-rms @ 23 kV Parallel Current: 900 A-rms @ 5 kV Cable Charging: 26 A-rms @ 27 kV Magnetizing Current: 2.7 A-rms @ 27 kV

Arc Chute Loadbreak: @ 15 kV 21 kV 35 kV Load Current: 150 A 100 A 20 A

Parallel Current: 150 A 100 A 20 A Cable charging: 15 A 15 A 15 A Magnetizing Current: NA NA NA

Quick Break Whip Ratings:Voltage (nominal) Cable Charging Line Charging 15 kV - 35 kV 15 A-rms 3500 kVA

LineBOSS™LineBOSS™LineBOSS™LineBOSS™LineBOSS™

SPECIFICATION ELEMENTS15 kV, 25 kV & 35 kV,600, 900 & 1200 A switches

SPECIFICATION ELEMENTS

Part Description:GANG OPERATED LOADBREAK OVERHEAD SWITCHES (vertical, horizontal, riser, delta (pole top), twincircuit or horizontal underarm)..

1. Nominal voltage: (15 kV, 25 kV or 35 kV)2. Insulators: Silicone rubber station post; BIL rating

(15 kV: 130 kV, 25 kV: 175 kV, 35 kV: 240 kV)3. Switch bearings: Stainless steel to brass on all

rotating insulators and switch operating shafts.4. Loadbreak shall be capable of: 900 A load break-

ing, 25 A cable charging, 900 A parallel switching.5. Contacts: Copper busbar blade and reverse loop

contacts are to be silver-plated, N.E.M.A. terminalpads shall be tin-plated copper busbar with a surface finish of 32 minimum.

6. The switch shall provide means to attach linecurrent/voltage sensors.

7. All ferrous components shall be hot dip galvanized.8. Loadbreak shall be self-resetting; where the trip

ping speed of the loadbreak shall be independentof switch operating speed. No component of theloadbreak shall make contact with the closing switch

blade prior to main switch contact engagement. Allactuating mechanism components of the loadbreakdevice must be stainless steel or non-corrosive parts.9. Switch base (crossarm) is to be: (hot dip galva-nized steel, fiberglass or aluminum) see LineBOSS™switch selection guide for dead-end loading specifica-tions. Specify pole clearance spacing i.e. 24”, GO95.10. Operating rod: specify type and length of controlrod, and if an insulated section is required (seeLineBOSS selection guide).11. The gang operated sidebreak style switch shall becapable of seamless automation with a torsional orreciprocating motor operator as dictated by the switchtype. It shall be available with the motorized switchoperator replacing the manual handle.12. Testing performed in accordance with standards:IEEE C37.32-1996, ANSI/IEEE C37.71-1984 and IEC265-1,1983 as applicable for 12 kV, 21 kV or 34.5 kV(system voltage).

2.16

Material:FinishScale:

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Description:

Drawing No: Revision:

This drawing is for illustrative purposes only and therefore; may, or may not reflect the currentrevision of this drawing. Please request the current revision from the factory.

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09/28/01 9225M 0

LBS, 15 kV - 35 kV SINGLE PHASE, Dim.

2.17

8" DEAD END 4" 4"

LINKSOR 14" EXTENSIONREQUIRES 6"

EXTENSION LINKSUSED WITHOUT18" DEAD END

CLEVIS HOLES (4)DEAD ENDØ 11/16"

B

D

C

A

8" 8"

3"

Ø9/16(4) 1200ANEMA PADS

NEMA PADS(2) 600A, 900AØ 9/16"

NOMINAL VOLTAGE RATINGDIM 15 kV 25 kV 35 kV

A 13 1/2" 17 1/2" 21 1/2"

B 14 1/4" 18 1/4" 22 1/4"

C 13 3/16" 16 3/16" 22 3/16"D 13" 16" 22"

1 3/4"

1 3/4"

1 3/4"

5/8"

5/8"

2"

5 7/8"

5 5/8"

5 1/4"

4 9/16"

SWITCH RATINGSVoltage Class: 15 kV nom. (15.5 kV max.) 110 kV BIL

25 kV nom. (25.8 kV max.) 150 kV BIL 35 kV nom. (38.0 kV max.) 200 kV BIL

1200 A Continuous: 70,000 Amps, 10 cycles44,000 Amps, 3 seconds



Momentary Current Rating:Current Class: 600, 900 and 1200 Amps, continuous


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09/28/01 9226M 1

LBS, 15 - 35 kV HORIZONTAL, Dimensions

2.18

CONTROL ROD LOCATIONS

14"

2

1


A 76" 87" 120"B 26" 30" 50 1/2"

C 18" 18" 21"

D 26" 33" 45"

A

B C D








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09/28/01 9241M 0

LBS, 15 - 35 kV HORIZONTAL, UnderarmDimensions.

2.19

14"

B C D

A

NOMINAL KV RATING 15 25 35

A 90"

D

B C

39"

27"18"

DIM

48"126"96"

39"

33"18"

54"18"

UNDERARM SWITCH CONSTRUCTION APPLICATIONS:

TANGENT RISERDEADEND RISERALLEY ARM

FOUR WIRE TANGENTFOUR WIRE ANGLEFOUR WIRE TANGENT RISERFOUR WIRE DEADEND RISERFOUR WIRE ALLEY ARM

UNDERARM CONSTRUCTION REDUCES WILDLIFE CAUSED OUTAGES

THREE WIRE SWITCH DIMENSIONS.

CONTACT THE FACTORY FOR CONTROL TYPES AND SWITCH DIMENSIONAL INFORMATION

ANGLETANGENT

AND PROVIDES A CLEAR VIEW OF SWITCH CONTACTS TO WORKMEN.








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07/06/06 9185M 2

LBS, 15 kV - 35 kV RISER, Dimensions

2.20

CB

D

A

NOMINAL VOLTAGE RATING

DIM 15 kV 25 kV 35 kV

A 76" 87" 102"

B 33 1/2" 48" 48"

C 35" 33" 48"

D 8" 8" 8"

20 1/2"

14"








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03/06/01 9184M 01

LBS, 15 kV - 35 kV, VERTICAL, (Phase-over-phase) Dimensions

2.21

10"


A 81" 92" 125"B 26 1/4" 32" 48 1/2"

C 28 1/2" 34 1/4" 50 3/4"

A

B

BC

C








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11/29/01 9239M 0

LBS 15-35 kV, LineBOSS™ Tap SwitchesDimensions

2.22

CONTROL HANDLE

SHOWN IN OPEN POSITION.

11"

THREE WAY

CONTROL ROD GUIDE

TAP TERMINAL

INCOMING CONDUCTOR DEAD-END INSULATOR

DEAD-END INSULATOR

EXTENSION LINK

STRAIN CLAMP

NEMA SWIVEL PAD

CONTROLROD

LineBOSS™ TAP SWITCHConfigurations

ONE WAY 90°

Switch dead-end conductorcan dead-end to the pole atup to 45°on this side.


90°

IN-LINEONE WAY

45°

DEAD-ENDCONDUCTOR

BLADE ROTATION(RIGHT HAND)

OPTIONALARC-WHIPS

CONDUCTOR

TWO WAY THREE WAY

THE VERTICALLY MOUNTED TAP SWITCH IS A GANGOPERATED POLE MOUNTED SWITCH WHICH CAN BEUSED IN VARIOUS CONSTRUCTION APPLICATIONS.RIGHT HAND (SHOWN) AND LEFT HAND OPERATINGMODELS ARE ADAPTABLE TO EXTREME HORIZONTALAND VERTICAL LINE ANGLES. TIN PLATED COPPERBUSS "TEES" AND BOLTED CONDUCTOR CLAMPSARE AVAILABLE FOR CONNECTING TWO AND THREE-WAY SWITCH CONFIGURATIONS.

MaximumDownwardLine Angle

25°

±10°








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09/28/01 9227M 0

LBS, 15kV-35 kV Delta (pole top) Dimensions

2.23

B B

14"

C

D E

A

NOMINAL VOLTAGE RATING

DIM 15 kV 25 kV 35 kV

A 60" 60" 76"

B 30" 32" 36"

C 24" 24" 24"

D 35" 35" 41"

E 49" 53" 57"








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10/02/06 9298M 0

Hook-stick Operated Switches, Crossarmmounted

2.24

MOUNT IT! WIRE IT! OPERATE IT!

(TOGGLE-LOCK POSITION)

1 Switch Closed & Toggle Locked Switch Closed & Un-toggled Switch Open Toggle-locked & Un-toggled2

PULL DOWNTO OPEN

CLOSED

3

PULL DOWNTO CLOSE

OPENUN-TOGGLED

UN-LOCKLEVERPADLOCK HOLE

UN-TOGGLED

PADLOCK HOLE

The Inertia hookstick operated switch eliminates the need for a control rod, sothere is no need for any field adjustment of the switch. Compression of theblades into the clips and interrupter timing are factory set. Without lower con-trols; pole clutter is reduced.

Hookstick operating mechanisms are available on Horizontal, Underarm hori-zontal, Riser, Vertical (phase over phase) and Delta (triangular) configurations.

The Inertia Hookstick safety features include:1.) Hookstick mechanism is located below the xarm, away from hot parts.2.) No springs that could be effected by ice.3.) The switch bellcrank has built-in toggle-over in both the open and closedpositions, which in conjunction to the lock-out bar feature, prevents inadvertent operation of the switch from either position by perching wildlife.4.) For night and inclement weather operation, the “hook” positions are high-lighted with a high visibility, yellow reflective surface.

The Inertia Hookstick bellcrank and rotating stacks have stainless steel-to-brassshaft bearings. Consider the savings in restrictive losses when the controlrods, guides and handle are no longer a factor! This makes the Inertia Hookstickoperated switch the easiest switch to operate. High leverage cam actionensures properly closed switch and reduced operating force.

• Fast, Easy Installation

• Versatile

• Safe Operation

• Easy Operation

H

HOOKSTICKOPERATINGLEVER


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05/21/04 9374M 0

25 kV Tiered Outboard, Armless UnitizedLineBoss Sidebreak GOAB Switch

2.25

TOP VIEWBOTTOM PHASE

NOTE:

SPACING SHOWN.MINIMUM PHASE

IS AVAILABLE.ALTERNATE SPACIN

3/4" Bolt(3X)

Blade openposition

Dead EndingBracket

CONTROL ROD

Unitized Arm

114.0"

Ø14.0"nominal

25.375"

25.0"

48.0"

17.625"

48.0"

48.0"

SWITCH RATINGSVoltage Class:25 kV nom.(25.8 kV max.)150 kV BIL






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04/13/04 9382M 0

25 kV Twin Loadbreak, Tap Riser Switch

2.26

3/4" MOUNTING10'-6"

POLYMER STATIONPOST INSULATORS

DEAD-ENDINGBRACKETS (3X)

4"X4" STEEL ARM

4'-6"

4'-6"

2'-1"

SOURCE ONE

LOADBREAK INTERRUPTERS

CONTROL RODCONTROL RODSWITCH ONE SWITCH TWOCONDUCTOR

RISER

SOURCE TWO


25 kV nom. (25.8 kV max.) 150 kV BIL35 kV nom. (38.0 kV max.) 200 kV BIL






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10/10/01 9228M 1

25 kV, H-Frame, Twin Riser Tap Switch, Substation Mounted

2.27

TOP VIEW

CONTRTOL ROD ROTATED90° FOR CLARITY

SWITCH RATINGSVoltage Class:15 kV nom.(15.5 kV max.) 110 kV BIL

25 kV nom.(25.8 kV max.) 150 kV BIL35 kV nom.(38.0 kV max.) 200 kV BIL





3/4" PIPE (20 FT.)

CONTROL ROD(SWITCH-B-)

CONTROL ROD(SWITCH-A-)

ROD GUIDE

ROD SPLICE

4"X4"X1/4"STEEL CROSSARM

20'±6"

11'-6"±6"

3'-6"±6"

36"

1212

20"

912

120"

36" 28"

103 1/2"±1"

OVERHEAD TRANSMISSION SWITCHES

• LineBOSS™ 46 kV & 69 kV Sidebreak GOAB Switch 3.28

• LBS 46 kV - 69 kV Faxback Form 3.29

• Air-BreakSwitch Attachment (Loadbreak) Information 3.30

• LBS 46 kV - 69 kV Feature/Benefit Overview 3.31

• LBS 46 kV - 69 kV Specification Elements 3.32

• LBS 46 kV - 69 kV Configuration Drawings9223M LBS4 (48 kV) SINGLE PHASE, dimensions. 3.339232M LBS 48 kV HORIZONTAL, Upright dimensions. 3.349222M LBS 48 kV HORIZONTAL (Center Mount) dimensions. 3.359224M LBS 48 kV VERTICAL (Phase-over-Phase) dimensions. 3.369237M LBS 48 kV TAP (1, 2 & 3-way) dimensions. 3.379403M LBS 48 kV DELTA Configuration, dimensions. 3.387000M LBS6 (72.5 kV) SINGLE PHASE, dimensions. 3.399215M LBS6 (72.5 kV) HORIZONTAL, (Center Mount) dimensions 3.409210M LBS6 (72.5 kV) VERTICAL (Phase over Phase), dimensions 3.419212M LBS6 (72.5 kV) VERTICAL, Twin Circuit, dimensions 3.429221M LBS6 (72.5 kV) DELTA Configuration, dimensions 3.439370M LBS6 (72.5 kV) VERTICAL Outboard with reciprocating control 3.449390M LBS6 (72.5 kV) RISER dimensions 3.459515M LBS6 (72.5 kV) TIERED OUTBOARD dimensions 3.46

3.0

OVER

HEA

D TR

AN

SMISSIO

N SW

ITCH

ESC

AT04

0930

G

© 2

008

Iner

tia E

ngin

eerin

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Mac

hine

Wor

ks, I

nc.

Prin

ted

05/0

8 A

ll rig

hts

rese

rved


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46 kV & 69 kV Sidebreak Type,Gang Operated Air-break Switch

INERTIA Engineering and Machine Works, Inc.adapted the industry leading design features of its dis-tribution class G.O.A.B. switches, to produce an ex-tremely high quality and cost effective, unitized side-break style transmission switch.

The ease of installation that unitized distribution classswitches provide is now available for transmissionclass switches. The phase units are shipped as com-pletely factory assembled and adjusted units. Theactual configuration is delivered fully unitized or modu-larized for fast, simple and easy field installation.

The LineBOSS 46 kV-69 kV sidebreak switches are thelowest “cost to own” switches available today. Fullyunitized or modular switches are hung on the pole inhours, not days. These switches also provide loweroperating costs. Unbalanced conductor load or sea-sonal temperature changes can create line sag lead-ing to contact misalignment on other style switches.This maintenance headache is eliminated by theLineBOSS sidebreak switch. Custom phase bases areavailable for installation on a wide variety of structures.

STANDARD FEATURES

• Unitized or modular construction on aluminum or steelcrossarms for fast and easy installations

• Factory adjusted, ready to mount with minimal, if any,field assembly required

• Available with silicone (std.) or porcelain insulators• Reverse loop, silver plated copper jaw contacts• Maintenance-free, sealed, stainless steel ball bearings• Meets all applicable NEMA and ANSI standards• All ferrous components are hot dip galvanized• Tinned copper two-hole and four-hole terminal pads

SPECIFICATIONS

Voltage Class: 46 kV (48 kV max.) & 69 kV (72.5 kV max.)Current Class: 600, 900 and 1200 A, continuousMomentary current: 600 A: 40,000 A-rms,10 cycles

25,000 A-rms, 3 seconds900 A: 51,000 A-rms,10 cycles

32,000 A-rms, 3 seconds1200 A: 70,000 A-rms,10 cycles

44,000 A-rms, 3 secondsContinuous current ratings tested to IEEE C37.32-1996

INTERRUPTER/LOADBREAK RATINGS (maximum)High Speed Whip Ratings: Voltage Line Charging Magnetizing 46 kV 18 A-rms (70 miles) 15 A-rms (70 MVA xfmr) 69 kV 18 A-rms (70 miles) 10 A-rms (70 MVA xfmr)AmpVac Interrupters: V V2 V3All currents are in Amps 46 kV* 69 kV* 46 kV 46 kV 69 kVInterrupting Current 1500 1500 2000 2000 2000Parallel Break Current 1500 1500 2000 2000 2000Line Charging Current 7 ** 3 ** 450 600 70Magnetizing Current 7 ** 3 ** 700 800 600* Recovery voltage below 38 kV. ** For higher rating check with factory.

STANDARD CONFIGURATIONS

• Horizontal, center mount• Vertical, phase over phase• Delta, triangular/pole top• Twin Circuit• Tap Switch: one-way, two-way and three-way

LineBOSS™

69 kV Delta constructionwith reciprocating control

3.28

3.28.1

Note: Consult the factory for any options not listed, including; arrestors, sensors, support brackets etc.A Fax-back form can be found on the next page. Copy, fill-out and fax it back with your requirements.

LineBOSS™ Selection Guide (46 kV-72.5 kV)

TWIN CIRCUIT

TAP SWITCH

HORIZONTAL(center mount)

1W (one-way) 2W (two-way) 3W (three-way)

DELTA(pole top)

VERTICAL(tiered outboard)

VERTICAL(phase over phase)

RISER

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Unitized SidebreakLine Switch


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Transmission Switch Fax-BackForm for Price Quotations

Make copies of this form to transmit your switch requirements. If you have your own standard’s drawing,please fill out the customer information and send it with this fax form.

Step1. Voltage Class _______kV Continuous Current rating (ANSI): ___________Amps

Step 2. Insulator type (circle one): Silicone Porcelain

Step 3. Interrupter type: None ArcHorn ArcWhip Hi-speed Whip AmpVac V2 V3

Step 4. Select the configuration (circle one) and specify spacing dimensions, if necessary:

“A” ________ “B” ________ “C” ________ “D” ________ “E”________

Step 5. Select Crossarm type: Galvanized Steel Aluminum

Step 6. Select the control mechanism (circle): Reciprocating ( ) Torsional ( ) Clockwise or Counterclockwiseto open; viewed looking down on the handle

________________________________________________Company Name

________________________________________________________________________________________________Address 1

________________________________________________Address 2

________________________________________________City StateZip code

___________________________________Contact Name

________________________Telephone Number

________________________Facsimile Number

_____________________________E-mail address

LineBOSS™

(209) 931-8186

3.29

B C

AB C D

A

A

BB

A

BB

C

C

B BA

BA

B

D

E

C

LINE ANGLEMAXIMUM DOWNWARD25° djk

25.000

17.625

LineBOSS switches are ANSI rated switches. The LineBOSS Lx6xxxxx is rated 600 Amps continuous current per the ANSI C37.30 temperaturerise test requirements, and for 900 Amp continuous current per the IEEE 1247 temperature rise test requirements. The LineBOSS Lx9xxxxx is rated900 Amps continuous current per the ANSI C37.30 temperature rise test requirements. The LineBOSS Lx1xxxxx is rated 1200 Amps continuouscurrent per the ANSI C37.30 temperature rise test requirements. Momentary current ratings (10 cycle) are: Lx6xxxx 600 A (ANSI C37.30) = 40 kA

Lx9xxxx 900 A (ANSI C37.30) = 51 kALx1xxxx 1200 A (ANSI C37.30) = 70 kA

3.29.1

Step 7. Select control rod (circle one): Galvanized pipe: 1” 1½” other________Fiberglass: 1¾” square other________

Step 8. Select control rod length (circle one): 30 ft. 40 ft. other___________

Step 9. Select additional accessories and modifications (check off and write in)

Provision for Neutral (4-wire)

Pole mounting bands

Substation mounting: Specify base mounting dimensions or furnish drawing.

Surge Arrestor brackets: set of 3 arrestor brackets set of 6 arrestor brackets

Extension links: set of 6; each 6” long set of 6; each 14” long “Y” Ball Clevis

Terminals: Terminal paddle for fired wedge connectors ______________________(specify size)Terminals, 2-hole copper NEMA pad #2-500 kcmil ( 600 & 900 A switch) Specify:_______Terminals, 4-hole copper NEMA pad 500-750 kcmil (1200 A switch) Specify: _________Terminals, other; ______________________(specify size)

Sensor Brackets; 1 set of 3 brackets

Current/Voltage Sensors, 3 each of . . . . Current Voltage Current/Voltage

Fiberglass section in pipe control rod: 1¾” square fiberglass

Station post insulator in control rod section

Intermediate control rod guides Swing-arm type

Bonded handle Grounding connector on crossarm __________ AWG range

Key Interlock - single key for circuit switching safety (“locked open”)

Crossarm Braces Galvanized Steel

Lifting points Single Double

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Notes/Sketches

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LineBOSS™

AIR-BREAK DISCONNECT SWITCHATTACHMENT SELECTION INFORMATION

LineBOSS™ Selection Guide suffix “V”

3.30

The AmpVac is an enclosed vacuum bottle interrupter where no gasesare vented to the atmosphere. The AmpVac interrupter has muchhigher interruption capabilities than other load break devices. Singlecontact AmpVac interrupters break loads up to 1500 amps at 35 kV.Single vacuum bottle interrupters may be used at reduced voltagesfor parallel or loop switching applications as long as the peak recoveryvoltage does not exceed 38 kV. The mechanical and electrical life ofthe AmpVac is 5000 operations at full load. The AmpRupter wastested to IEEE 1247-1998 .AmpVac™

ArcWhip

LineBOSS™ Selection Guide suffix “Q”

ArcHorn (not an interrupter)

ArcChute (Delrin “Clapper”)

LineBOSS™ Selection Guide suffix “A”

The Arc Horn is not an interrupter and has no ratings. It is used asan arc deflecting mechanism to save the life of switch blades andcontact clips. The ArcHorn, also known as “sacrificial arcing horn”,is the first point of contact during switch closing operations. Theinitial making current during a closing operation creates small arcs;pitting the arc horns. This “sacrificial” mechanism preventsdegradation of the main contacts. The Arc Horn is used to redirectthe arc resulting from residual or stored charge left in a line after adown-line circuit is opened. Arc Horns will not prevent damage fromthe inadvertent opening of a loaded switch.

The ArcWhip is similar to an Arc Horn, but unlike Arc Horns, theArcWhip has a small interrupting rating between 10 and 20 amps.ArcWhips can clear arcs from residual energy stored in capacitorbanks, transformers or conductors. ArcWhips are only in the currentpath during switch opening operations. They have an average life of150 open operations.

The ArcChute Interrupter is a minimal load-breaking device thatutilizes air break technology. The arc is quenched as the two Delrinarc chute plates close and the arc whip breaks away establishingthe required metal-to-metal open gap. Arc Chute interrupters arewidely used for line charging and magnetizing current interrupting.Full loadbreak and parallel breaking currents up to 150 amps at21 kV or 20 amps at 34.5kV are common applications. Arc Chuteinterrupters are only in the current path during the opening processand have an average life of 150 operations.

LineBOSS™ Selection Guide suffix “H”

Vacuum Bottle Interrupter Applications:Type of Switching AmpVac, 1-Gap Vacuum Interrupter V2, 2-Gap V3, 3-Gap

15.5 kV 25.8 kV 38.0 kV* 48.3 kV* 72.5 kV * 38.0 kV 48.3 kV 48.3 kV 72.5 kVLoadbreak, 70% PF 1500 A 1500 A 1500 A 1500 A 1500 A 2000 A 2000 A 2000 A 2000 AParallel Break < 30% PF 1500 A 1500 A 1500 A 1500 A 1500 A 2000 A 2000 A 2000 A 2000 ACable Charging 1500 A 950 A 100 A 7 A** 3 A** 600 A 450 A 600 A 70 AMagnetizing 1500 A 1000 A 300 A 7 A** 3 A** 700 A 700 A 800 A 600 ACapacitor Bank,(grnd. neut.) 1500 A 950 A 100 A 7 A** 3 A** 600 A 700 A 800 A 600 A

3.30.1


Interrupter Attachment Device Applications:Switching Type ArcHorn ArcWhip ArcChute Hi-speed whip

Line Charging NA <72.5 kV : 2.5 A (10 miles) <72.5 kV : 2.5 A (10 miles) 72.5 kV : 18 A (70 miles)Magnetizing NA <72.5 kV : 3500 kVA xfmr <72.5 kV : 3500 kVA xfmr 46 kV-72.5 kV : 70 MVA xfmr

V2 (2-gap vacuum Interrupter)V3 (3-gap vacuum Interrupter)

The V2 and V3 vacuum Interrupters are a two-gap and three-gapload-breaking devices, respectively that utilize vacuum bottletechnology. V2 vacuum interrupters with two vacuum bottles inseries can break loads up to 2000 Amps at 48 kV. V3 vacuuminterrupters with three vacuum bottles in series can break loadsup to 2000 Amps at 72.5 kV. Vacuum bottle interrupters are not inthe current path during the switch closing operation, and have nofault closing capabilities. The mechanical and electrical life of theV3, 3-Gap vacuum interrupter is 5000 operations at full load.

LineBOSS™ 46 kV - 69 kV Selection Guide suffix “V2”& “V3”

The HSW, high speed whip Interrupters are used to interrupt linecharging current at system voltages up to 72.5 kV. They can alsointerrupt transformer magnetizing current at system voltages up to72.5 kV. These interrupters are designed for 5000 open operations.

LineBOSS™ 46 kV - 69 kV Selection Guide suffix “S”High Speed Whip

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Busbar gradecopper contactcomponents.

Inertia uses busbar grade copper contact components as they arestructurally and electrically superior to cast contact materials. Castaluminum and copper bronze contact castings are 34-36% con-ductive and often contain unseen surface irregularities and voidsthat create ‘hot spots’. Busbar grade C110 copper is 99% conduc-tive and is many times smoother to provide better connection sur-faces and is not subject to porosity.Benefit: Reduced operating cost due to a cooler running switch.Longer service life with reduced energy loss.

FEAFEAFEAFEAFEATURES BENEFITSTURES BENEFITSTURES BENEFITSTURES BENEFITSTURES BENEFITS

ANSI TR2xx series,3” (46kV) & 5”(69kV)bolt circle stationpost insulators areprovided in siliconeor porcelain.

The LBS switches are offered with silicone or porcelain, three inch(3”) and five inch (5”) bolt circle station post insulators. Siliconeinsulators are standard, with porcelain available as a lower costalternate.Benefit: Silicone insulated switches are lighter and easier to installwith minimal chance of damage when uncrating and erecting.Porcelain insulators provide a lower cost option.

The rotating insulators pivot on double sealed stainless steel ballbearings at both the top and bottom of the phase base providingsmooth maintenance-free operation of the switch throughout its life.Benefit: Total operating cost of the switch is reduced as less sitevisits are required for maintenance.

Interlocking phasebase design withthrough-holemounting bolts.

46 kV & 69 kV 600-1200 AmpSidebreak Style Switch

Unitized/ModularSwitches

The LineBOSS™ 46 kV and 69 kV switches come from the factorywith each phase unit completely unitized and adjusted. When theswitch configuration calls for partial assembly, the LBS switch isbroken down into easily assembled modules. The locations of themodules are fixed, requiring very little, if any, adjustment.Benefit: Greatly reduced installed cost with minimal field assemblyand adjustment of the switch.

Sealed stainlesssteel ball bearingson rotating stacks

The LBS 46 kV and 69 kV phase units have an interlocking designthat securely clamps and locates each phase unit on the crossarm.Secure phase bases result in minimal movement over the life of theswitch. Adjustments to the switch are virtually eliminated. Thethrough-bolt fastening assures that user specified phase spacing ismet without additional field measurements or adjustments.Benefit: Reduced installed cost due to minimal assembly

Reduced maintenance cost through secure clamping

Stainless steel/brass bearings inthe bellcrank

Bearings in the bellcrank mechanism reduce the force required tooperate the switch and eliminate corrosion caused by plated metal-to-metal abrasion and wear.Benefit: The ease of operation reduces risk of injury to personneloperating the switch and also translates into greater switch life.

Unitized transmission switches install with the speed and ease of distributionswitches and provide years of maintenance-free operation.

Specify these features for the lowest installed, lowest operating cost switch.

Features and Benefits

LineBOSS™

3.31


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Loadbreak Device RatingsArcWhip: Voltage Cable Charging Line Charging

48.3 kV 15 A-rms 3500 kVA72.5 kV 15 A-rms 3500 kVA

ArcChute: Voltage Cable Charging Line Charging48.3 kV 15 A-rms 3500 kVA72.5 kV 15 A-rms 3500 kVA

HS Whip: Voltage Cable Charging Line Charging48.3 kV 25 A-rms 70 MVA72.5 kV 20 A-rms 70 MVA

LineBOSS™LineBOSS™LineBOSS™LineBOSS™LineBOSS™SPECIFICATION ELEMENTS

46 kV & 72.5 kV RATED SWITCHES

Catalog Description: 46 kV (48.5 kV maximum) or 69 kV (72.5 kV maximum) GANG OPERATED LOAD-BREAK OVERHEAD SWITCH (Vertical, Horizontal, Delta (pole top), Riser, Twin circuit, Tiered outboard and Tap)

1. Nominal voltage: (46 kV or 69 kV), continuouscurrent rating: (600, 900 or 1200 A)

2. Insulators: Silicone rubber station post, BIL rating46 kV: 250 kV BIL, 69 kV: 350 kV BIL

3. Switch bearings: Sealed stainless steel ball bear-ings on all rotating insulators.

4. Contacts: Silver-plated copper busbar blades withreverse loop contacts. N.E.M.A. terminal padsshall be tin-plated copper busbar. Cast alloys arenot acceptable for current path components.

5. The switch shall provide means to attach linecurrent/voltage sensors.

6. All ferrous components shall be hot dip galvanized.

7. Loadbreak shall be self-resetting; where the trip-ping speed of the loadbreak is independent of theswitch operating speed.

8. Switch base (crossarm) is to be hot dippped gal-vanized steel or aluminum. Pole clearance spac-

ing can be specified by the customer.

9. Operating rod: specify type and length of controlrod,and insulated section, if required (see selection guide).

10. The gang operated sidebreak style switch shall becapable of seamless automation with a reciprocating motor operator. It shall be available with the motorized switch operator replacing the manual handle.

11. Switch phases shall be completely factory as-sembled. The switch configuration shall be eitherfully factory unitized and adjusted, or be modular-ized including factory assembled phase units foreasy field assembly.

12. Crossarms shall have predrilled galvanizedlocating/mounting holes as prescribed by customerspecified phase spacings.

13. Testing performed in accordance with standards:ANSI/IEEE C37.32-1996, ANSI/IEEE C37.71-1984 and IEC 265-1,1983.

3.32

Switch RatingsVoltage Class: 46 kV (48 kV max.) & 69 kV (72.5 kV max.)

Momentary current: 600 Amp: 40 kA-rms, 10 cycles 25 kA-rms, 3 sec. 900 Amp: 51 kA-rms, 10 cycles 32 kA-rms, 3 sec.1200 Amp: 70 kA-rms, 10 cycles 44 kA-rms, 3 sec.

Current Class: 600, 900 and 1200 A, continuouscurrent per IEEE C37.32-1996

Vacuum Bottle Interrupter Applications:

Type of Switching AmpVac, 1-Gap Vacuum Interrupter V2, 2-Gap V3, 3-Gap 15.5 kV 25.8 kV 38.0 kV* 48.3 kV* 72.5 kV * 38.0 kV 48.3 kV 48.3 kV 72.5 kV

Loadbreak, 70% PF 1500 A 1500 A 1500 A 1500 A 1500 A 2000 A 2000 A 2000A 2000 AParallel Break < 30% PF 1500 A 1500 A 1500 A 1500 A 1500 A 2000 A 2000 A 2000 A 2000 ACable Charging 1500 A 950 A 100 A 7 A** 3 A** 600 A 450 A 600 A 70 AMagnetizing 1500 A 1000 A 300 A 7 A** 3 A** 700 A 700 A 800 A 600 ACapacitor Bank, (grnd. neut.) 1500 A 950 A 100 A 7 A** 3 A** 600 A 700 A 800 A 600 A



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LBS4 (48 kV) SINGLE PHASE Dimensions.None

09/22/01 9223M 03.33

29"

TINNED COPPERBUSS SENSOR ADAPTER

ALL LBS4 SERIES SWITCHES USE SEALED,STAINLESS STEEL BALL BEARINGS.ALL CURRENT CARRYING COMPONENTS &CONTACTS SILVER PLATED C110 COPPERALL FERROUS COMPONENTS ARE HOT DIPGALVANIZED.NO ALUMINUM OR COPPER CAST COMPONENTS USED.

BOLT ON SENSORMOUNTING BRACKET

33.5"

16.5"

SENSOR ATTACHEDWITH ANALOG48 kV SWITCH

N.E.M.A. PAD

25.5" WITHOUT INTERRUPTERS

TINNED COPPER N.E.M.A. PADS2-HOLE ON 600, 900 AMP SWITCHES4-HOLE ON 1200 AMP SWITCHES

ARC WHIPINTERRUPTER SHOWN

5/8" BOLTS

21.0" OPEN GAP

6.00"

90.0°







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10/16/01 9232M 0

LBS, 48 kV, Horizontal, Upright Dimensions

3.34

CONTROLS ARE AVAILABLE.TORSIONAL "SWING HANDLE

NOTE: RECIPROCATING CONTROLMECHANISM SHOWN.

QUADRANTS ONE OR TWO (QUAD. TWO SHOWN)

168.0"

42.0"

58.5"

24.0"

14.0"

BELL CRANK AVAILABLE IN

(6 X 14" EXTENSION LINKS PROVIDED)

1/2" X 2 -1/2" X 2 -1/2" DEAD-ENDBRACKETS (3X)

(2) 3/4" BOLTS

76.5" 24.0"

1/4" X 5" X 5" A50 GALVANIZEDSTEEL CROSSARM

30.75"

ADJUSTING SCREW

CLOSED LOCK HOLE

OPEN LOCK HOLE

45°

HANDLE DETAIL

11"SWITCH RATINGSVoltage Class: 48 kV nom. (48.5 kV max.) 250 kV BIL






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LBS 48 kV Horizontal (centermount) DimensionsNone

09/22/01 9222M 03.35

BELL CRANK AND CONTROLROD AT 90° POLE QUADRANT

1/4" X 5" X 5" A50 GALVANIZEDSTEEL CROSSARM

1/2" X 2-1/2" X 2-1/2"DEAD-END BACKETS (3X)

3/4" BOLTS (3X)

12.0"

CONTROLS ARE AVAILABLE.TORSIONAL "SWING HANDLEMECHANISM SHOWN.NOTE: RECIPROCATING CONTROL

ADJUSTING SCREW

CLOSED LOCK HOLE

OPEN LOCK HOLE

45°

HANDLE DETAIL

11"

58.5"

30.75"

126.0"

63.0"

28.5"

58.5"

53.5"

12.0"

30.75"







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09/22/01 9224M 0

LBS, 48 kV, Vertical (Phase-over-Phase)Dimensions

3.36

30.75"

133.5"

57.0"

137.5"

58.5"

PHASE OVER PHASE (VERTICAL) SWITCHESARE AVAILABLE WITH RECIPROCATING (UPAND DOWN) CONTROL MECHANISMS, ONLY.

3/4" BOLT HOLES (3X)

HANDLE DETAIL

11"

45°

OPEN LOCK HOLE

CLOSED LOCK HOLE

ADJUSTING SCREW

1/2" X 2-1/2" X 2-1/2"DEAD-END BRACKETS (3X)

48.5"

30.75"







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11/14/01 9237M 0

LBS 48-69 kV, LineBOSS™ Tap SwitchDimensions

3.37

CONTROL HANDLE


11" THREE WAY

CONTROL ROD GUIDE

45° MAX

±10°

TAP TERMINALINCOMING CONDUCTOR DEAD-END INSULATOR

DEAD-END INSULATOR

EXTENSION LINK

STRAIN CLAMP

NEMA SWIVEL PAD

CONTROLROD

3"

LineBOSS™ TAP SWITCHConfigurations

ONE WAY 90°



90°

IN-LINEONE WAY

45°

DEAD-ENDCONDUCTOR

BLADE ROTATION(RIGHT HAND)

OPTIONALARC-WHIPS

CONDUCTOR

TWO WAY THREE WAY

THE VERTICALLY MOUNTED TAP SWITCH IS A GANGOPERATED POLE MOUNTED SWITCH WHICH CAN BEUSED IN VARIOUS CONSTRUCTION APPLICATIONS.RIGHT HAND (SHOWN) AND LEFT HAND OPERATINGMODELS ARE ADAPTABLE TO EXTREME HORIZONTALAND VERTICAL LINE ANGLES. TIN PLATED COPPERBUSS "TEES" AND BOLTED CONDUCTOR CLAMPSARE AVAILABLE FOR CONNECTING TWO, THREE ANDFOUR-WAY SWITCH CONFIGURATIONS.


69 kV nom. (75.5 kV max.) 350 kV BIL






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11/14/01 9403M 0

LBS 48 kV, LineBOSS™ DELTA configurationDimensions

3.38

3/4" MOUNTINGBOLTS (3X)

TYPICAL DEAD END OR THROUGHLINE CONNECTION

5"X5" STEEL ARMS

EXTENSION LINK

LINE INSULATOR

DEAD-ENDINGANGLE

SWITCH OPENBLADE POSITION

POLE

CONTROL ROD

±34"

36"

83"

14"

91"

43" 43"

6"

18" 49"







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06/07/01 7000M 0

LBS6 (72.5 kV) Single Phase Unit, Dimensions

3.39

90° ROTATION

REVERSE LOOP JAWS

C110 SILVER PLATEDCOPPER BUS CONTACTS

INSULATORS:PORCELAIN OR SILICONE RUBBER: 350 KV B.I.L.ARC WHIP QUICK BREAKS ARE AVAILABLE UPON REQUEST.

TINNED COPPER N.E.M.A. TERMINAL PADS600 AMP, 2, 9/16" HOLES900 AMP, 2, 9/16" HOLES1200 AMP, 4, 9/16" HOLES (SHOWN)

39"

HOT DIP GALVANIZEDOR NON-FERROUSCOMPONENTS.

(SUBSTATION STRUCTURE BASE)

45.4"

51"

STAINLESS STEEL BALL BEARINGS

32"

36"

3.5"

STATION POSTSILICONE (SHOWN)OR PORCELAININSULATORS

Ø 5/8"

MOUNTING BOLTS)(TYPICAL ALL

3.0"

1.0" (POLE BRACKET BASE)

5.0"

1.0"







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06/27/01 9215M 3

LBS6 (72.5 kV) Horizontal, Pole TopConfiguration Dimensions

3.40

10 FT. 1-3/4" SQUAREFIBERGLASS CONTROL

CONTROL

11.00"

2.96"�


CONTROL ROD SHOWN IN QUADRANT 4 (90°)CROSSOVER)OTHER QUADRANTS AVAILABLE.CONSULT FACTORY FOR ALTERNATELOCATIONS AND CONTROL TYPE

34.50"

14'-10"

84.00"

12.00"12.00"

84.00"

41.88"

35.83"

CLOSED LOCK HOLE

ADJUSTING SCREW

OPEN LOCK HOLE

HANDLE DETAIL

5/8" BOLT HOLES3.0"

INTERMEDIATE GUIDE DETAIL45°






3/4" PIPE


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04/09/01 9210M 0

LBS6 (72.5 kV) Vertical (phase-over-phase)with Square Fiberglass Control Rod

3.41

NEMA PADSTINNED COPPER

BLADE ROTATION

15'-3"

POSITION OF HANDLE

PADLOCK OPENPADLOCK CLOSED

IN FULLY CLOSED POSITION.

DEAD-END CONDUCTORS TO

ROTATED 90°.CONTROL ROD ARESTRAPS ON TOP

WHEN SWITCH IS CLOSED

BOTTOM SECTION (3/4" NUT)

POSITION OF GUIDES

POLE, OR TO OPTIONAL BRACKETS.

PIPE

3/4" MOUNTING BOLT

3/4" MOUNTING BOLT

CONTROL ROD COMPRESSION.

45°

HANDLE DETAIL

11"ADJUSTING SCREW

CLOSED LOCK HOLE

OPEN LOCK HOLE

POSITION OF HANDLE FOR

WIDE STRAPS UPNARROW STRAPS DOWNINTERMEDIATE SECTIONS

BASESTEEL SWITCH

84"

41"

84"

3/4" MOUNTING BOLT







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06/27/01 9212M 01

LBS6 (72.5 kV) Vertical (phase-over-phase),Twin Circuit Dimensions

3.42

THIS SECTION OFCONTROL MECHANISMIS ROTATED 90°

ADJUSTING SCREW

CLOSED LOCK HOLE

OPEN LOCK HOLE

HANDLE DETAIL

45 °

3/4"BOLTS

14"

INTERMEDIATE GUIDE DETAIL

5/8" BOLT HOLES3.0"

11.0"

CONTROL HANDLESHOWN IN OPEN POSITION.

INSULATORSNOTSUPPLIED

3/4" STEELINTERPHASE RODS

5"X5"X1/4" STEELTUBING

1-3/4" SQUAREFIBERGLASSCONTROL

ARC WHIPINTERRUPTERSNOT SHOWN.

DEAD END ANGLE

58-1/2" 58-1/2"

30.0"

48.0"

35.72 "







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08/22/01 9221M 01

LBS6 (72.5 kV) Delta (triangular) Configura-tion with Reciprocating Control

3.43

48"

82" 3/4" BOLT HOLES (3X)

92"

126"58"

32"14"

45"

KING PHASESUPPORT BOLTS

Front View (switch open)

Side View (switch closed)

Top View

INSULATORS:PORCELAIN OR SILICONERUBBER: 350 KV B.I.L. ARC WHIP QUICK BREAKS ARE AVAILABLE UPON REQUEST.







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03/03/04 9370M 0

LBS6 (72.5 kV) Vertical Outboard withReciprocating Control

3.44

CONTROL ROD

1/4X5X5 A50GALVANIZEDSTEEL TUBING

14 "X 3" GUSSET

PHASE OPERATINGROD

CONTROL ROD

POLE MOUNTING BRACKET

DEAD-ENDINGANGLE

1'Ø POLE MOUNTINGBOLTS (6 EACH)

INTERPHASEROD

POLE

2461"4

30"

49

108"

30"

323"4

30"

353"4

108"

643"4







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None

09/15/04 9390M 0

LBS6 (72.5 kV) RISER SWITCH

3.45

84"

178"

84" VACUUM �INTERRUPTER

V3

43"

BLADE COUNTERWEIGHT

51"







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None

03/10/06 9515M 2

LBS6 (72.5 kV) TIERED OUTBOARD2 RIGHT, 1 LEFT

3.46

DEAD-ENDINGANGLE

BOLTS (6 EACH) POLE MOUNTING

CONTROL RODLOCATION

1" PIPEINTERPHASE (148")

1512

1"

60

60

3734

9212

9212

158

36

5234 523

4

5034

6014

4314

3512 351

2






SPECIALTY SWITCHES• LineBOSS™ NBS 5 kV-35 kV Regulator/By-Pass 4.10

NBS 5 kV-35 kV Operating Sequence 4.11

NBS 5 kV-35 kV Application/Selection Guidelines 4.12

NBS 5 kV-35 kV Configuration Drawings9216M NBS (5 kV-35 kV) Regulator/By-pass Construction Methods 4.139216M-8 NBS (5 kV-35 kV) Regulator/By-pass, Single-phase Installation 4.14040927M NBS (5 kV-35 kV) Regulator/By-pass, Wiring Diagrams 4.15

• LineBOSS™ GBS 5 kV-35 kV Loadbreak Grounding Switch 4.20

GBS 5 kV-35 kV Configuration Drawings9366M GBS, 35 kV Loadbreak, Sidebreak Grounding Switch, Type G2 4.216400GM 15 kV- 35 kV Sidebreak Style, Fused Grounding Switch 4.22

SPEC

IALTY S

WITC

HES

4.0


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LineBOSS™NBSNBS, 5 kV - 38 kV Non-InterruptingRegulator/Bypass, Overhead Switch

NBS, Single-pole unitized; shown in the Cut-in position.

re-wiring the buswork. The NBS-2D is not requiredon multi-step regulators.

The LineBOSS™ NBS, Nielsen Bypass Switch, wasoriginally designed in 1972 by Carl Nielsen, P.E. toallow non-interrupting bypassing and energizing (cut-in or cut-out) fixed booster transformers. The NBSswitch now provides continuous power to load-sidecustomers when energizing or de-energizing one, two,or three phase fixed booster, auto-booster andregulator transformers as required by voltageconditions or for routine maintenance or replacement.

The conventional combination bypass-disconnectswitch used for de-energizing multi-step regulators; firstrequires the regulator be placed in the neutral position.As the switch opens, a shorting bar is inserted acrossthe main line leads and the regulator series winding.If the regulator tap changing mechanism or the positionindicator has malfunctioned and the regulator is not inthe neutral position, attempting a by-pass operationcan result in excessively high circulating current in theseries winding which can damage or destroy the seriestap changer mechanism, the switchgear, bus work andendanger personnel.

The NBS bypass switch eliminates this safety hazardby controlling the series winding circulating current byuse of a current limiting resistor, while providinguninterrupted service to load side customers. Thetransfer series resistor assembly permits bypassingmulti-step regulators in the buck or boost position (referto application calculations).

TYPICAL APPLICATION:

Cut in a 762 kVA (7620 V, 100 A), single-phase regulatorto boost the voltage. The regulator indicates that it is inneutral, but it is actually at step one. The circulatingcurrent could be as high as 31 kA during the switchingoperation using a standard combination bypassdisconnect switch. The NBS switch, with its currentlimiting series resistor assembly, limits the circulatingcurrent to less than 24 A without interruption of service.

THE TWIN FEED NBS:

The NBS-2D is designed for use on fixed boosters andauto-boosters that are on circuits that have preferredand alternate source directions. The NBS-2D allowsthe booster or auto-booster to boost in the direction ofthe load when the alternate source is being utilized.The NBS-2D provides a switching method for re-routingthe source feed to the booster transformer without

4.10

STANDARD FEATURESThe NBS shares all of the features of the LBSconventional sidebreak switch. See LineBOSS™

Features & Benefits for additional information.

SWITCH RATINGS:Voltage Class: 5 kV, 15.5 kV, 25.8 kV & 38 kVContinuous Current Class: 600 A Transfer & Continuous

STANDARD CONFIGURATIONS• Single-pole units, unitized, reciprocating handle• Double-pole unit, unitized, reciprocating handle• Double-pole unit, two-way feed, unitized• Three-pole unit, unitized, reciprocating handle• Single-pole, pole mounted (direct to pole), hookstick• Single-pole, substation (double crossarm) mounted,• Twist-Assist™ hookstick operated, direct to pole

4.11

igu

Resistor

LoadSource

Trolley

Trolley

DisconnectSwitch

DisconnectSwitch

ReversingSwitch

SeriesWinding

Resistor

Resistor

LoadSource

Trolley

DisconnectSwitch

DisconnectSwitch

ReversingSwitch

SeriesWinding

Bridging Position

Resistor

LoadSource

Trolley

DisconnectSwitch

DisconnectSwitch

ReversingSwitch

SeriesWinding

Transfer Position

Resistor

LoadSource

Trolley

DisconnectSwitch

DisconnectSwitch

ReversingSwitch

SeriesWinding

Cut-in Position

CUT-out (Bypass)

Source

Bypass

CUT-IN

LOAD

Source

Bypass

CUT-IN

LOAD

Source

Bypass

CUT-IN

LOAD

Source

Bypass

CUT-IN

LOAD

LineBOSS™ NBS Operating Sequence

BYPASS POSITION

1. The NBS bypass switch is shownhere in the Cut-out or bypassposition. The current path is indicatedby the dotted line. The regulator isout of the circuit. The actual switchposition is shown to the immediateleft, while the schematic shows theNBS in the top left of the schematic.

BRIDGING POSITION

2. The NBS bypass switch is shownhere in the bridging position. Noticethat the blade is in contact with thebridging contact before breakingcontact with the female clip. Theimpedance of the series winding andthe NBS current limiting resistorseliminate the high circulating currentin the series winding. The bridgedconnnection between bridgingcontact and the female clip insuresuninterrupted service.

INTERMEDIATE POSITION

3. The NBS bypass switch is shownhere in the intermediate position.Notice that the blade is in contactwith the bridging contact, only. Theimpedance of the NBS currentlimiting resistors solely eliminates thehigh circulating current in the serieswinding. These resistors are lab andfield proven to withstand 600 Ampsduring the transfer operation.

CUT-IN POSITION

4. The NBS bypass switch is shownhere with the regulator now inservice. The blade contacts thefemale clip while still on the bridgingcontact. This provides uninterruptedservice to the customer. Interruptionof voltage can cause magnecticcontactors in large motors to dropout, thus requiring restarts.

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LineBOSS™ NBS Selection Guide

LineBOSS™ NBS Switch Application GuidelinesUsing a standard combination bypass disconnectswitch, the voltage differential across the series windingin the regulator is shorted out during the switchingsequence. This produces an extremely high circulatingcurrent when in the lower tap positions (not in neutral).The INERTIA NBS eliminates this high current by placingresistance in series with the regulator series winding.The maximum boost or buck voltage differential is limitedto 1200 volts (600 A rating x 2 ohms).

The maximum switching position for a given regulatorcan be determined by the calculations shown:

1. Determine the voltage change per step of theregulator or booster transformer:

Voltage change/step =Number of tap positions

(Line voltage) x (Max. boost or buck %)

2. Determine maximum boost or buck tap position:

Maximum tap position =Voltage change per tap

1200 volts

Example: Line voltage is 13,800 volts, 10% max. boostor buck with 16 positions boost or 16 positions buck.

= 86.25 voltage change per tap position

= 13.9 tap positions

= 43.1 A max. circulating current

Conclusion: The NBS will safely switch this 13,800 Vregulator at tap position 13. At step one, where thecirculating could be as high as 43,125 Amps based on0.002 ohms series winding impedance, the current ismitigated to 43.1 amps while switching.

13,800 V x 0.1016 tap positions

1,200 volts86.25 Volts/tap position

4.12

NOTE: Always attempt to return the regulator toneutral before switching. This device is not intendedto change the safety or standard operating practiceof switching regulators.

The NBS switch allows an added margin of safetywhen switching regulators. When neutral position cannot be definitely confirmed, the NBS will allow safeswitching in the “off-neutral” position as long as thedifferential voltage across the transformer serieswinding does not exceed 1200 V.

INERTIA’s NBS noninterrupting bypass switch, protectspersonnel and equipment, and eliminates the downtimeand other costs associated with taking an outage toswitch regulators, fixed or auto-booster transformers.It provides additional personnel and equipment safetyin line distribution and substation applications.

3. Determine maximum current at tap position 1:

Max. Circulating Current =NBS switched series resistance

Voltage change/step x # tap positions

86.25 Volts x 1 tap position2 ohms (NBS resistance)

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11/20/01 9216M 1

LineBOSS NBS Noninterrupting booster trans-former switch construction methods

4.13

Single or Double Arm Mount

Cam-Lock Hookstick Lever

Dead-EndingAngle

ROD SPLICE

13/16 Holes

13/16 HOLE13/16 HOLE

1858

Type N26SS4R22 Single Pole (Center) 23kV, 600 Amp Unitized Booster Switch

Type N26SS2DR22 Twin 23kV, 600 Amp Unitized Booster Switch

Type N26SS3R22 Triple-pole 23kV, 600 Amp Unitized Booster Switch

Type N26SS1L22 Single-pole 23kV, 600 Amp Unitized Booster Switch

Type N26SS2R22 Double-pole 23kV, 600 Amp Unitized Booster Switch

FRONT

BYPASS

CUT IN

SIDE

Line Line

4,160 V to 27,000 V Regulator Switches

Hookstick Operated Bypass switches for One, Two and Three-phase Regulator switching

Type N26SS1R22 Single-pole 23kV, 600 Amp Unitized Booster SwitchFRONT

XTo

To Line

H 11To

FRONT

SIDE

To X1

H1To

Line Line

SIDE OF POLELEFT OR RIGHTINSTALLED ONSWITCH CAN BE


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None

07/04/01 9216-8M 0

LineBOSS NBS Noninterrupting booster trans-former switch, single-phase construction

4.14


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NTS

09/27/04 040927-1M 0

NBS Schematic Wiring DiagramsDelta Connections

4.15


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NTS

09/27/04 040927-2M 0

NBS Schematic Wiring DiagramsDelta Connections

4.16


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NTS

09/27/04 040927-3M 0

NBS Schematic Wiring DiagramsWye Connections

4.17


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LineBOSS™GBSGBS, 15 kV-69 kV Sidebreak TypeLoadbreak/Grounding Switch

SWITCH RATINGS:Voltage Class: 15 kV, 25 kV, 35 kV, 46 kV & 69 kVContinuous Current Class: 600 A, 900 A & 1200 A.

STANDARD CONFIGURATIONS• Pole mounted for distribution applications• Frame mounted for substation applications

The LineBOSS™ loadbreak grounding switch, GBS,is uniquely designed to provide loadbreak, open gapclearances and line grounding for applications insubstations or pole line switches. The GBS isavailable for two arm substation construction withswitch bases manufactured to adapt to existingstructures, or factory unitized on a single steelcrossarm. The GBS is available with fuseddisconnects for additional system safety requirements.Control mechanisms are built with safety key interlocksto prevent the isolator (loadbreak) switch and thegrounding switch from errant closure of both switches.

STANDARD FEATURES

Continuing the INERTIA LineBoss product line, theGBS is made to ANSI and Inertia standards to providethe most rugged switch available with the followingfeatures:

• Solid platform with a 1/4” thick steel base

• All ferrous components are hot dip galvanized

• Insulators are station post insulators eithersilicone or porcelain with 3” bolt circle

• All components in the current path throughthe switch are substation grade copper,silver-plated throughout

• Terminal pads are tin-plated for compatability withall types of commonly used connectors (copper,tinned copper, aluminum, bronze etc.)

• Contact clips are reverse loop design for greatercontact force during high momentary currents

• Loadbreak options from arc whips, AmpRupter™expulsion tube interrupter and the AmpVac™vacuum bottle interrupters.

The GBS shares all of the features of the LineBoss™

conventional sidebreak switch. See LineBOSSLBS Features & Benefits for additional information.

4.20

LineBOSS™ Loadbreak/Grounding SwitchSelection Guide

This drawing is for illustrative purposes only and therefore;may, or may not reflect the current revision of this drawing.Please request the current revision from the factory.

Note: Consult the factory for any options not listed, including; arrestors, sensors, support brackets etc..

4.20.1

INSTALLATION OF GBS HORIZONTAL SWITCH CONSTRUCTION.

DESCRIPTION

POSITION OF HANDLEIN FULLY CLOSED POSITION.

INSTALL CONTROL

MAXIMUM/MINIMUM

SPACING SHOWN.

ALIGN GUIDES

VERTICALLY

ROD GUIDES WITH

(DOWN=OPEN)

ISOLATOR SWITCH

(UP=GROUND)SWITCH HANDLEGROUNDING

HANDLE1 CROSSARM WAS 87" IS 102"

IN WHOLE OR IN PARTWITHOUT THE EXPRESS PERMISSIONOF iNERTIA ENGINEERING. THE DOCUMENT IS PROTECTED

THIS IS A PROPRIETARY AND CONFIDENTIAL DOCUMENTOF INERTIA ENGINEERING AND MACHINE WORKS INC,STOCKTON CALIFORNIA. THIS DOCUMENT CANNOT BE COPIED

REVISIONS

BY US FEDERAL COPYRIGHT LAW.

04-24-03 DS

9330M15KV, 600A, GO-95, 102" ARMGBS16SXSH, GROUNDING SWITCHASSEMBLY LAYOUT

04-23-03

DRAWING NO.

INCHES ±1/4"ALL DIMENSIONS:

SPLIT BOLTGROUND WIRELUG

2-HOLE NEMA PAD(LOAD SIDE)

2-HOLE NEMA PAD(SOURCE SIDE)

ISOLATOR SWITCH

GROUNDINGSWITCH

CONTROL ROD SPLICE(MUST BE 17" MIN. FROM ROD GUIDE)

5/8" ALL THREAD(NOT SUPPLIED)

102"

3"46"

5-7 ft.

17" min.

26"27"

21"

11-1/4"

34-1/2"

2 ADD CLEARANCE DISTANCE 04-24-03 DS

HANDLE GROUND

SWITCH GROUND

PHASE GROUND (3X)

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Unitized LoadbreakGrounding Switch

Mat

eria

l:Fi

nish

Scal

e:D

raw

n by

:D

ate:

Des

crip

tion:

Dra

win

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for i

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NTS

05/0

3/08

9

366M

0

35 k

V L

oadb

reak

, Sid

ebre

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Gro

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witc

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G2

4.21

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NTS TV09/10/07 6400GM 1

Fused Grounding Switch

4.22

AU

TOM

ATION

EQU

IPMEN

T

5.0

AUTOMATION EQUIPMENT• MSO Motorized Switch Operator 5.10-5.13

• MSO, Reciprocating ( ) OperatorFeatures/Benefits 5.20Purchasing Specification 5.30Engineering Specification 5.40

• MSO, Reciprocating Operator Drawings9350M 35 kV SCADA Switch Package with Line Sensors and MSOR 5.509331M 25 kV Horizontal Switch Package & Retrofit Components List 5.519408M 35 kV SCADA Riser Switch Package with MSOR 5.52

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The INERTIA MSO, motorized switchoperator, meets or exceeds ANSI cer-tification standards for substation,transmission and distribution Super-visory Control And Data Acquisition(SCADA). It works as a stand alone,locally controlled device, or it can befit with a wide variety of SCADA com-munication equipment including yourchoice of RTU, modem, radio, an-tenna, cabling, and analog insulatorswith current, voltage and fault sens-ing capabilities.

Two MSO models available:• MSOD- reciprocating output fordistribution switches 15 kV-35 kV• MSOT- reciprocating output fortransmission switches 46 kV-72.5 kV.

The INERTIA MSO is built with inter-changeable communication controlmodules for upgrading on the shopbench instead of in the field. A basicpushbutton operating device can beupgraded with a variety of SCADAsystems in the future. A new or modi-fied module, with your choice of re-mote control features, can be easilybench tested on an existing MSO se-ries and quickly apply the upgrade inthe field.

The INERTIA MSO gives the flexibil-ity needed for your changing remoteswitching requirements. Inertia’s in-terchangeable modules allow foreasy upgrades on the shop bench;not up on the pole.

Physical CharacteristicsThe INERTIA MSO is light enough tobe installed with any lifting equipmentcapable of 225 lbs. The nominal cabi-net measurements are 15 ½” W x19½” H x 23”D. Manual switch op-eration capability is provided on theback of the unit. No synchronizing isrequired after a manual operation asis the case with some equipment.

MSOMotorizedSwitchOperator

Motorized Switch OperatorMSO

RECIPROCATING

5.10

• Perpetual Position AlignmentThe patented clutch assembly inthe INERTIA MSO provides factoryadjusted output travel that neverneeds resetting in the field. Oncethe MSO has been installed andthe switch rod adjusted, the opera-tor never requires realignment.

• Modular ConstructionThe slide-in control modules areup-gradable and easily inter-changeable in the field. If the RTUor radio needs replacement, thebench work can be done in the shopand the control module exchangedin the field by the troubleman.

• Unitized ConstructionThe drive mechanism is isolatedfrom the main cabinet by a sealedbulkhead, providing isolation of themechanical drive components fromthe electronic components.

• Operating SpeedThese reciprocating units operate in0.5 to 0.7 seconds.

• Front panel/Local IntelligenceThe front panel of the MSO providesboth on-site and remote information,and prevents inadvertant contactwith the electrified components.

• Clearance Point SafetyThere are four clearance points:1.) The toggle switch is moved tothe local position to disable remotecontrol. 2.) the patented clutch sys-tem is decoupled disengaging themotor from the drive mechanism. 3.)the interlock pin is removed to breakthe circuit to the drive motor. 4.) theinterlock pin is placed through thedrive shaft and encompassed by acollar that secures the drive shaftwith the switch in either the open orclosed position. If all prior steps aredefeated, the switch position can-not change.

The inside panel isolates the user from the ener-gized components during a routine maintenancecheck and during normal local operation.

Power Supply Lamp indicates a functioningpower supply that charges the 24 VDC battery pack.

Low Battery Lockout Lamp illuminates when thevoltage monitor has detected a voltage too low toproperly operate the switch. If low voltage is de-tected, the battery successfully pass a deep drawdischarge test either locally, remotely, or automati-cally prior to operation. There is no override.

Battery Test/Reset Toggle Switch is a momen-tary switch that initiates a 5 second battery test. Thebattery voltage must be sufficient to allow a reset.

Door Sensor turns off lamps when the door isclosed and initiates an alarm status when open.

• Lamp Test Pushbutton energizes all lamps whendepressed to check for burned out lamps.

• Cycle Counter counts each closing cycle.

Interlock Pin lamp illuminates whenever theinterlock pin is removed from its control panellocation. The motor circuit cannot be energizedwhen the interlock pin lamp is illuminated (pin isremoved). This is the first clearance point step.

Decoupled Lamp illuminates whenever the motoris decoupled from the output linkage via thedecoupling handle. The second clearance pointstep.

Remote/Local Toggle Switch allows control tobe initiated from the control panel, only when in thelocal position; or remotely, only when in the remoteposition. This is a third clearance point step.

Open & Close Pushbuttons are covered toprevent inadvertent contact and are illuminated to

ENGINEERING & MACHINE WORKS, Inc.™

MSOSWITCH OPERATOR

PULL HANDLE OUT AND ROTATE AS SHOWN BEFORE CLOSING DOOR

LIFT COVER TO PRESS PUSHBUTTONS

INTERLOCK PINMUST BE ENGAGEDFOR MOTOR TO OPERATE

120 VAC

COUNTER

INTERLOCKPIN

REMOVED

OPERTORDECOUPLED

DECOUPLED

LOW BATTLOCKOUT

LAMP ISON DURINGBATTERYTEST (5 SEC.)

LAMP IS ON WHENBATTERY CHARGERIS OPERATING

ALL LAMPS SHOULD BE ONWHEN PRESSED

LAMP IS ON WHENBATTERY MONITORHAS LOCKED OUTTHE MOTOR CIRCUIT

POWERSUPPLY

LAMPS ARE ON WHEN INMANUAL OPERATION MODE

ONE COUNT PER Open/Close CYCLE

CO

UP

LED

LOW BATTRESET

LAMPTEST

BATTERYTEST

REMOTE(S.C.A.D.A. MODE)

LOCAL

CLOSE

OPEN

SWITCHOPERATION

000005

Power SupplyLamp

Low BatteryLockoutLamp

Interlock Pin Lamp

Decoupled Lamp

Battery Test/Reset Toggle Switch

Remote/LocalToggle Switch

Door Sensor

Panel Latch

Lamp TestPush-button

Cycle Counter

Open push-button

Close push-button

Interlock Pin

Decoupling Handle

Serial/Model Number

INERTIA

Model No.:Serial No.:

MSO-R31SCADA001205-0010

4690 E. Waterloo Rd, Stockton, CA 95215

The MSO is available in a choice of powder-coated mild steel or stain-less steel enclosures. All enclosures have the following features:

• Drive mechanism in a partitioned subcabinet to isolate the drivecomponents in the subcabinet from the electronic components.

• Four full inches of belt clearance between the pole and the MSO• One inch conduit hole (plugged) provided for AC power• Twelve-pin receptacle provided in the bottom of the cabinet, pre-

wired for external equipment, e.g. sensors, fault indicators etc.• Pad-lockable door and drive collar (clearance point)• Integrated manual operating mechanism• Auto-regulating heater for humidity control• Single point lifting eye for easier mounting• Easy access to operator/module without removal from crate

Closer Look On The Inside . . . . . . . . CONTROL PANEL

indicate the current switch position. The illuminatedbuttons indicate the switch position remotely andlocally, whether operated manually or by the motor.

Decoupling Handle physically disengages themotor from the output mechanism. The motor can berun in the local mode by pressing either the open orclose pushbutton without operating the switch.

Interlock Pin: The interlock pin is the “Key” to theunit. It must be fully inserted into its position on thecontrol panel for the motor to operate. It is the samepin required for using the manual handle. In aclearance, it creates a physical stop/fourth clearancepoint step, if other clearance steps are breached.

Closer Look From The Outside. . . . . . . . . . . . . . . . . . . . . . .

Indicates a remote RTU status. Indicates a remote control point.5.11

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Behind The Panel . . . . . . . . . . . . Modularity

Control Modules

The slide-in battery and control modules provide easy ac-cess for upgrades. Battery-pack changeouts are madequickly and easily by separating the power plug and remov-ing it. The INERTIA control module is custom tailored forthe customer’s requirements. No field wiring of the operator isrequired. The control modules are interchangeable, so if anupgrade is desired, a backup unit can be programmed andtested in the shop and sent out to the site for replacement.The replaced module can then be returned to the shop forbench testing. There is no need to troubleshoot the moduleon the pole. Since the modules are interchangeable, the op-erator never becomes obsolete. As your requirements change,an upgraded module with different capabilities can be insertedwith the same ease without the need to take a clearance.

5.12

MSO control modules are designed with “openarchitecture” and are adaptable to customerselected specifications for power input, SCADAstatus and control, and communication and faultsensing devices.

Substation applications:The control module can be a “hard-wired” unitwithout RTU or communicatiions device for sub-station applications.

Field applications:The control module can be supplied with factorymounted and wired RTU, communication deviceor both. When customer supplied, the factory willpredrill the control module frame to accept theform factor of the device(s) to be customer in-stalled. The RTU and/or communication device(s)can also be installed external to the MSO in fac-tory supplied weatherproof boxes or it can be sup-plied with an umbilical cord (instrumentation/con-trol cable) with customer specified connectors.

Control module input, control and status point information:

• External power requirement: 720 watts minimum• Supply voltage input: 120/240 VAC or 24-125 VDC• Control and drive power: 24 VDC• Auxiliary power: 12 VDC, 4.5 A• Control points* (24 VDC Form-A “wetted relays)• Status points** (24 VDC Form-A “wetted relays)

* Form-A “dry“ contact relays are available.** Status points can be grouped for “Condition Alarm” as requested.

The Inertia MSO’s mechanical and electro-mechanical drivecomponents are designed to last for decades. It is not likelythat any technological or material advances will improve thisdrive system. Battery, RTU and communications technolo-gies are very likely to change in the future. The removablebattery pack and control module systems allow easy up-grades without field wiring. Future upgrades of the RTU orcommunications device will be done in the shop on replace-ment modules. Pretested, pre-programmed modules canthen be hot-swapped in the field without taking a clearance.

Selection: Select the operator antenna connection and the control rod type.

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Design TestsThe following test have been conducted on the Inertia MSO switch operator in accordance to the applicableANSI/IEEE standards. Additional test are included that are not part of the ANSI/IEEE test standards.

Insulation Withstand (high potential)Input line to ground and common to ground tested at 1,500 and 2,600 volts.Dielectric withstand voltage, (input to output 1 minute): 2,500 VAC.Insulation resistance, (input to output): 10 M ohm minimum with leakage current, less than 0.83 mA.

Line Voltage VariationInput voltage-AC: 85-145 VAC Input frequency-AC: 47-63 HzBrown out protection (lowest input voltage that regulation is maintained ): 85 VACPower supply drop out voltage : 40 ± 5 VACPower supply pick up voltage: 85 ± 5 VACThe battery failure backup system maintained all control and status I/O and system operability during test

Power Failure BackupTime to ‘no-go’ (0.6 amp. load): 50 hours Recovery time (successful battery test), 25 minutes

Temperature CycleFive 24 hour cycles at -20°C to +85°C. (one cycle without the switch operator’s heater on)Five 24 hour cycles at +20°C to +91°C. The test was conducted with an additional 2.3 ohm load to simulate radio andRTU power consumption. One temperature cycle was conducted without 120 VAC input to the power supply.

Humidity cycleRelative humidity: non-condensing to 70°C at 95% relative humidity with the door open.

Surge Withstand Per ANSI C37.90.1-19893.0 kV, 100 kHz oscillatory waveshape, positive and negative polarities, injected into the AC mains and enclosure.4.0 kV, 100 kHz fast transient waveshape, positive and negative polarities, injected into the AC mains and enclosure.

Powerline Surge Voltage and Current Per ANSI C62.41-1991100 kHz Ring waveshape both positive and negative polarities injected into the AC mains and the enclosure, and1.2x50μs, 8x20μs surge waveshape, positive and negative polarities injected into the AC mains and the enclosure.4 kV amplitude, over 0-540 degrees phase, 15 degree phase increments5 kV amplitude, over 0-180 degrees phase, 15 degree phase increments6 kV amplitude, over 0-180 degrees phase, 15 degree phase increments

Electrostatic Susceptibility ESD per MIL STD. DOD-HDGK-263, Schaffner 430 ESD GunTest all surfaces, switches, buttons and safety neutral terminals or grounds that will be contacted by personnel duringoperation or installation of the device per the following:a: Test voltage at 10 kV: Discharge the test device on all the above surfaces.b: Test voltage at 15 kV: Move the probe 0.5 inches above all contact surfaces (avoiding discharge).

Power On/Off TransitionInput voltage is varied from +20 %, -10%, -15%, -20%, -50% ,-100% and nominal while the voltage is rapidly toggled onand off eight cycles. All device functions are verified to be operating correctly at all input voltage settings.Power supply ratings: Turn-on delay: 1 Sec.

Charger hold up time (110 VAC): 20 mS min.Operating frequency (switching frequency of main transformer: 22 kHz nom.

Brown-Out and Single PhaseVerify correct device operation at nominal input voltage, and after the following:a: Nominal input voltage -20% for six hours. b: Nominal input voltage - 50% for six hours.

EMI/RFI Susceptibility Per S.A.M.A. Std. PMC 33.1-1978 (Radiate frequencies from front, right and left sides)14 kHz-512 kHz, 10V/m, operator energized with 120 VAC, door closed512 kHz-10GHz, 5V/m, operator energized with 120 VAC, door open

Electromagnetic RadiationConducted per FCC part 15 Class B limits

Battery Life36 amp-hour lead acid batteries (VRL), powering the control module only, for 22 hours prior to low voltage lockout. Abattery shutdown algorithm is employed to prevent deep discharging the batteries during a sustained outage.

Mechanical OperationMechanically tested on 35 kV gang switch 3,500 operations, 300 without power supply, no maintenance was performed onthe switch or the operator during the test. No appreciable wear or damage was identified.

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MSOD/TMotorized Switch Operatorfor Transmission & Distribution

The INERTIA MSO reciprocatingswitch operator is the single answerto your changing remote switchingrequirements.The MSOT and MSODmotorized switch operators can op-erate virtually any reciprocating ,mov-ing blade transmission or distribu-tion switch with reciprocating (up/down) control. It is the safest andmost reliable of all of the MSO op-erator designs. The MSOD andMSOT have interchangeable control/communication modules that willallow upgrades and repairs to bemade on the shop bench instead ofin the field. It can operate any ninetydegree opening sidebreak or line ten-sion switch. The control module canbe supplied with either or both theRTU and communication device ofyour choice. If radios or other com-

1. Remove the interlock pin fromthe front panel and insert it into theoutput shaft and padlock in place.Decouple the operator.

2. Remove the padlock and rotatethe collar out of the way. Placehandle over the exposed shaft andinsert interlock pin. Switch is nowoperated like any manual switch.

3. For a clearance, repeat step 1,and place interlock pin throughshaft. Replace collar to capture theinterlock pin at a mechanical stop.Padlock collar for final clearancepoint .

MANUAL OPERATION & CLEARANCE POINT SEQUENCE

5.20

Operator shown inthe open position,engaged andoperational, with thecollar padlocked

munication devices are to be recycledor customer installed, the controlmodule can be predrilled at the fac-tory to accept all devices commonlyused in your system.

Installing and setting up the opera-tor is simple. Install the switch asyou would a manual handle. TheMSO weighs approximately 225 lbs.so it can be easily set in place us-ing a bucket truck. Two through-bolts are all that is required to se-cure the MSO to the pole. Operatethe switch to the closed position,install the adjustable coupling, andset the handle to provide moderatecontrol rod compression while al-lowing toggle-over.

The automated switch is now readyfor remote operation.


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Description:

Pole mounted 24 VDC reciprocating ( ) output motorized switch operator for 4 kV- 138 kV overhead gangoperated air break switches. This equipment shall meet or exceed all applicable A.N.S.I./I.E.E.E., F.C.C. ,S.A.M.A. and I.E.C. test standards.

General specifications:1. Operating stroke must be a fourteen inch (14½”) nominal and fully operate the switch open or

closed within 0.5-0.7 seconds. A sealed DC motor capable of 5,000 lb. stall torque coupled with amulti disk clutch shall provide the output to the switch control rod.

2. Stroke limits (once set) should not require re-setting after manual operation or motor runningmaintenance.

3. Operator linkage must toggle over center at both extremes of the stroke to: 1) place control rodcompression on a mechanical stop in the closed position and 2) prevent accidental movementfrom the open position.

4. Switch position status must be indicated locally on the control panel and transmitted via SCADAremotely when in either local/manual or remote/motor operating mode.

5. Single point lifting is to be provided on a powder coated welded stainless steel enclosure withstainless steel hardware and safety handle.

6. A visible air gap must be attainable between the control rod and output shaft of the motor opera-tor in the open position. No adjustments shall be required to re-engage the operator and the controlrod. The switch position must be lockable during a clearance (user safety point).

7. It shall not be necessary to disengage the control rod to perform a manual operation of theswitch.

8. The manual handle shall require the use of an interlocking device which, when removed for usewith the manual handle, shall break the electrical circuit to the motor (user safety point).

Control and SCADA Specifications:1. The operator shall have a control panel with the following controls and status indications:

• Switch Close pushbutton and LED status indication• Switch Open pushbutton and LED status indication• Battery test/reset toggle switch control• Low battery motor lockout lamp• Power supply “ON” lamp• Remote/local toggle switch• Motor disengaged (decoupled) lamp (user safety point)• Motor circuit interlock pin removed lamp (user safety point)• Operations counter• Door sensor• Motor interlock pin (user safety device)• Decoupling handle (user safety device)• 120 VAC, 6 Amp convenience receptacle• Lamp test pushbutton

MSOD/T seriesPurchasing SpecificationMotorized Switch Operator forReciprocating ( ) Switches

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INERTIA Engineering & Machine Works, Inc. Tel: 800-791-9997 E-mail: [email protected] E. Waterloo Road • Stockton, CA 95215 Fax: 209-931-8186

Control and SCADA Specifications (continued):

2. The operator electronic controls shall have the following minimum features:• 12-pin analog input plug• 120 VAC regulated heater• removable battery pack• weather-tight panel separating mechanical output linkage mechanisms.• removable control logic, RTU, and communications module with the following features:

o Battery monitoring and automatic timed testo Low voltage motor lockouto Low voltage system disconnecto All status and control outputs shall be connected to a test terminal block.o DC startup test pushbuttono Fused 120 VAC input, and 24 VDC power supplyo Minimum control points

Open switchClose switchBattery test/reset

o Minimum digital status outputsSwitch openSwitch closedLow battery lockoutPower supply failureLocal/Remote controlOperator decoupledInterlock pin removed

o Minimum analog outputs: Six analog outputs shall be provided to interface with line post, or other sensors

• Fused 24 VDC and 12 VDC outputs for the radio, RTU or other equipment .

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Scope: This material description covers the minimum acceptable requirements for 4 kV-138 kV G.O.A.B.reciprocating switch controllers and stored energy operators. The switch controller is to be mounted below theswitch assembly.The controller shall be able to accommodate the various applications, including, but not limited to:

• Encrypted, secured and codable 900 MHz handheld remote control.• External S.C.A.D.A. with, or without current or current/voltage sensors or remote faulted circuit indicators

via RTU and radio or other communication media of the customer’s choice, through a bulkhead receptacle.

Mechanical and manual operation

• The switch operator must be designed to open and close all the types of manufacturers’ reciprocatingswitches of sufficient force in 0.5 to 0.7 seconds.

• The operating mechanism and enclosure must be G.O.-95 compliant.• All linkage components are to be of nonferrous anticorrosive materials and be physically and be

environmentally isolated from the electronic components by a bulkhead.• Means shall be provided to enable the motor to be coupled or decoupled from the output linkage in any

position without realigning the motor linkage to the output shaft or repositioning the output linkage to itsoriginal position prior to manual operation.

• Switch position status is to be indicated when operated either by motor or when operated manually.• A motor de-energizing interlock, physical linkage stop in a padlockable collar are to be provided for

clearance point verification.• The operator enclosure is to be of welded NEMA 4X construction of 14 gauge, stainless steel with ANSI 71

grey powder-coated 3 mil. minimum.• A thermostatically controlled heater shall be provided to reduce condensation in the operator.• The operator enclosure shall be a maximum of 16 inches wide for traffic and pedestrian safety.• All ferrous components and hardware shall be hot-dip galvanized per ASTM A123.

Controller:

• The operator controller must be easily replaceable and upgradable, and provide a terminal block with24 and 12 VDC power outputs for RTU with status and control points and communication devices.

• The operator controller, RTU and communication equipment are to be enclosed in a modular unit, whichcan be exchanged with a comparable module. Control module exchange and replacement shall be hot-swap capable, i.e. module can be replaced or removed for upgrade or repair without taking an outage.

• Control module exchange and replacement shall not require rewiring of the controller, analog inputs orthe power supply.

• Controller shall be isolated by a separate control panel, to protect the user from inadvertent contact withenergized parts. “Open” and “Close” switches shall be covered to prevent inadvertant accidental contact.

• Controller shall have the following points:Status: 1. Switch open 6. Interlock pin removed (motor circuit disable)

2. Switch closed 7. Low battery lockout3. Local enabled 8. Power supply fail4. Remote enabled 9. Door open (optional)5. Manual mode (motor decoupled) 10. Local and/or remote operations counter (optional)

Control: 1. Open switch 3. Battery test2. Close switch 4. Fault detect reset (optional)

MSOD/T seriesEngineering SpecificationMotorized Switch Operator forReciprocating ( ) Switches

5.40

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INERTIA Engineering & Machine Works, Inc. Tel: 800-791-9997 E-mail: [email protected] E. Waterloo Road • Stockton, CA 95215 Fax: 209-931-8186

Front Panel User Interface:

• Display/operation panel shall be hinged and latchable, and have the following attributes:1. Panel displays:

a) Battery test in progress lamp e) Operator decoupled lampb) Low battery lockout lamp f ) Motor interlock pin removed lampc) Power supply lamp g) Cycle counter for switch operationsd) Open pushbutton (covered & illuminated) h) Close pushbutton (covered & illuminated)

2. Provided controls:a) Lamp test pushbutton e) Open pushbutton (covered & illuminated)b) Battery test switch f ) Close pushbutton (covered & illuminated)c) Battery reset switch g) Motor decouplerd) Local/Remote toggle switch h) Motor interlock

Power Supply:

• The power supply shall have the following minimum characteristics:Input voltage range: 110-240 VAC (50-60 Hz).Output current and voltage: 4.6/4 A, 24/28 VDC temperature compensating.Minimum switching frequency, 20 kHz, 1% peak-to-peak ripple.Inrush surge, EFT/burst, radiated susceptibility tested to: EN61000-4-2,3,4 and 5.Electromagnetic interference, conducted: FCC title 47, class B as applicable.The power supply is to be fused on both the input and output.

Motor and operation:

1. A 24 VDC sealed motor shall be powered by an easily replaceable 24 VDC/24 amp-hour maintenance-free, lead acid battery pack capable of sustaining 250 mA communication and RTU equipment for36 hours, and four motor operations during the first 24 hours upon loss of the AC supply.

2. The motor shall be capable of being exercised via local control without effecting the switch position.3. The motor is to be protected with thermal trip/reset breakers and overload torque limiting means to

sense and reduce damage to iced or locked switches.4. Motor contactors, relays, timers and battery management electronics shall prevent lazy or partial switch

operation.

Documentation:

1. Each operator shall be supplied with an installation and operation manual that includes:• Remote and local control and manual operation.• RTU and radio installation.

2. Factory acceptance test certificates with associated serial numbers shall also be included.3. All components shall be warranted the first year for on site repair of all parts and labor, and for an

additional two years as returned to the factory. Warranty does not apply to battery replacement.RTUs and radios shall be warranted separately by their respective manufacturer(s).

The foregoing information is provided to help ensure specifying the highest possible quality motorized switchoperator.The information provided herein is intended solely as a guideline to create a specification that best suits theend user’s application. Some portions may, or may not be applicable to your requirements and environment.

5.41

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Description:



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None

09/11/03 9350M 0

35 kV Sidebreak SCADA Switch

5.50

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5.51

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Description:



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MOTORIZEDSWITCHOPERATOR

VACUUMINTERRUPTER

OPEN BLADEPOSITION

STEEL PIPE

STEEL PIPE( 3: 10'-0" SECTIONS)

STEEL ARM

PIPE SPLICE

8.00

42"-48"

3312"

±12'-0"

±10'-0"

48"

43

102"

48"

None

07/28/04 9408M 0

35 kV Riser Sidebreak SCADASwitch

5.52

BRACKETS, MOUNTS & HARDWARE• Insulator Brackets for Overhead Lines 6.10-6.16

• Vault Brackets and Junction Cabinets 6.30-6.33

• Substation Flexible Jumpers 6.50-6.51

• Miscellaneous Hardware 6.70-6.73

• Self-Design Worksheet Last page

BR

AC

KETS, M

OU

NTS &

HA

RD

WA

RE

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Description:



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Aluminum

NTS

11/28/01 9-084A-EXM 0

TORQUE INSULATOR MOUNTING BOLTS TO 65-75 FT. LBS.

WITH 34.5 KV TINNED UNIVERSAL CLAMP TYPE SILICONE INSULATORS.3/4"X 1-3/4" GRADE 5 HEX BOLTS AND LOCK WASHERS SUPPLIED

ALUM. CHANNEL

6.0"

3/8" ALUM. END PLATES

OF POLEMAX. FROM TOP8.0"

64"64"

48"

96"

12"

14"

Triangular Framing Assembly35 kV Raptor Clearance

Tri-Frame brackets reduce installation time and crossarm replace-ment. They are available in 15 kV - 69 kV versions with eitherstandard clearances or raptor protection clearances. They areavailable either with or without insulators.

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13/16" INSULATOR PIN HOLES

9-359AMFOUR POLE INSULATOR RACK

15"18"

15"18"

95 kV BILINSULATOR

95 kV BILINSULATOR

95 kV BILINSULATOR

9-359BM

9-359C

13"

29"

TWO POLE INSULATOR RACK

5/8" BOLT SLOTS

4" CHANNEL

15"6"

20"

20"

20"

13"

29"

THREE POLE INSULATOR RACK

13"

13"

TANGENT DEAD-END HOLE

POLE OR TREE MOUNTED INSULATOR BRACKETSARE AVAILABLE IN:-A36 HOT DIP GALVANIZED STEEL-6061-T6 ANODIZED ALUMINUM

105/8"

101/8"

101/8"

105/8"

165/8"

361/4"

165/8"

71/2"

95/8"

Al or HDG Steel

NTS

11/03/00 9-359M

Pole or Tree Mounted Insulator Brackets

Special application insulator mounting brackets. Lightweight,durable; available with or without insulators.

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Ø13/16"X1.25 (2X)

Ø13/16"X1.25

6.0"

2.0"

8.0"

2.0"

Ø9/16"

15°

4.4"

Ø 13/16"(3X)

5.0"

6.0"

4.5"

6.0"

12.0"

1.25"

9-341MHorizontal Insulator Crossarm Mounting Bracket

2.5"

WOOD CROSSARM

95.0°

END VIEWTOP VIEW

SIDE VIEW6061 T-6 ANODIZED ALUMINUM

Ø 13/16"

Ø 13/16" (2X)

6.0"

4.0"

8.0"

3.4"

15°

Ø 13/16" X 1.25" SLOT

9-342-1M6" Offset, Line Post Mounting Bracketwith 9/16"Arrestor Mounting Hole5/16" Hot Rolled Steel Hot Dipped Galvanized

9-342-2M6" Offset, Line Post Mounting Bracket5/16" Hot Rolled Steel Hot Dipped Galvanized

HDG Steel

NTS

01/12/00 9-341& 9-342M 0

Miscellaneous Line Post Insulator Brackets

Order 10 or 10,000 custom standoff brackets, built to yourspecifications

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9-366-1M

8.0"

4.0"

1/4 Hot Rolled Steel,Hot Dip Galvanized.

1/4 Hot Rolled Steel,Hot Dip Galvanized.

4.25"

70°

70°

2.0"

8.0"

2.0" X 20° X 8.0" MOUNTING INSULATOR STANDOFF BRACKET5,000 LB. VERTICAL LOAD

9-366-2M

4.25" X 20° X 8.0" MOUNTING INSULATOR STANDOFF BRACKET2,000 LB. VERTICAL LOAD

Ø13/16Ø11/16 (2X)

Ø13/16Ø11/16 (2X)

1/4” HDG Steel

NTS

01/15/00 9-366M 0

Miscellaneous Line Post Insulator Brackets

Order 10 or 10,000 custom standoff brackets, built to yourspecifications

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58"

6"

3/8"X5"X5" ALUM.

6"X4.49" LB. ALUM. CHANNEL

POLE3/4" BOLTS (3X)

FRAME IS SUPPLIED WITHOR WITHOUT INSULATORS.INSULATORS ARE BOLTEDUPRIGHT ON THE HORIZONTALARMS FOR SHIPPING..58"

48"

48"

70" 19"

6061-T6 Al

NTS

01/25/00 9-394M 0

Twin Circuit, 34.5 kV Pole Top Insulator Frame

Twin circuit insulator brackets reduce installation time andcrossarm replacement. They are available in 15 kV - 69 kV versionswith either standard clearances or raptor protection clearances.They are available either with or without insulators.

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NTS

04/10/03 9-425M 0

69 kV 3-Phase Termination Bracket

6.15

9-425-4R

9-425-1

9-425-5C

9-425-3B9-425-4L

9-425-5L9-425-2

9-425-5R

9-425-2B

44.5

21.38

19.50

35.4°

19.1

125.4°

54.6°

24.877

60.0°


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6061-T6 Al

NTS

10/21/02 9-420AM 0

Termination Bracket, 69 kV Single Phase

6.16

Ø7 12

5 516

525 3

8

Ø10

18

Ø1116

25.0°

16

15 18

22 116

Ø8 34

Ø 916

30 34

5 516

Ø 916


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JUNCTION BRACKET ACCOMMIDATES :

3-4 WAY CONFIGURATIONS 3-3 WAY CONFIGURATIONS 3-2 WAY CONFIGURATIONS

54.75"

16.5"

8.25"

6.75" Ø 0.563"

S.S. STOVE BOLT

3/4X1/8 S.S. U-BRACKET

JUNCTION BARSIL. BRZ./S.S. HARDWARE

3/16X1 S.S. CLAMP BRACE

JUNCTION BAR CUT-AWAY

GROUND LUG/WIRE CONNECTION POINTS

SLIDING S.S. PARKING STANDS (6X)

S.S. MOUNTING BRACKETSS.S. CHANNEL

FRONT VIEW END VIEW

GROUNDING BAR

12"

GROUNDLUG

PULL ANGLE

72"

48"

96"

JUNCTION RAIL PROVIDES 3-2 WAY, 3-3 WAY AND 3-4 WAY, 200 AMPAND 600 AMP JUNCTIONS, MOUNTED IN AS SMALL AS A 3 FT. X 5FT. ENCLOSURES IN A MINIMAL AMOUNT OF TIME. THE STRONG,DURABLE STAINLESS STEEL JUNCTION RACKS ARE AVAILABLEWITH OR WITHOUT JUNCTION BARS. CONSULT THE FACTORY FORCONFIGURING TO YOUR SPECIFIC REQUIREMENTS.

Stainless Steel

NTS

11/28/01 9-085M 0

Vault Rack/Junction Bar Assemblies200 A & 600 A

6.30


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As described

NTS

07/11/01 9-309M 0

STAINLESS STEEL FASTENERS304 STAINLESS LOADBREAK ELBOW PARKING STANDS6061 ALUMINUM FRAMEMATERIAL:

25.5"

34.0"

20.25"1/4"X3" ALUM.

9/16"X1.0" SLOTS (3X)

Wall Mounted, 200 A Elbow Parking Stand

6.31


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NTS

05/03/04 9-086M 0

Elbow Parking Stand, 3-Position

6.32

ALL 300 SERIES STAINLESS STEELFASTENERS AND COMPONENTS

Ø 9/16"

5-1/2"

40°

19-3/4"

22-1/2"

8" 8"

8-1/4"

Ø9/16"X11/16"SLOTS (4X)


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NTS

09/04/03 9-414-OAM 0

Temporary Vault Support Kit

6.33

9-414-2B

FOR TWO ASSEMBLIES AS SHOWN

FLOOR PLATE

EACH KIT CONTAINS COMPONENTSNOTE:

9-414L 9-414R

9-414-5

VIEW-A

9-414-2T (4X)

RIGHT SIDE

AW-BEAM CLAMP9-414-3 (4X)9-414-1

JACK SCREW 3/4X2-3/4

3/4X2-3/4 (2X)FLAT WSHRS(4X) LK WSHR (2X)

WALL MOUNTS

2"SCHD.80 PIPE (48")

59-72

10

10

3" MINIMUM

1 14

Ø1316 (6X)

3

6

4 14

6

44 18

TEMPORARY VAULT SUPPORTS TO BE USEDDURING CONCRETE OR BRICK VAULT REPAIRSLOAD RATINGS ARE DEPENDANT UPON VERTICAL PIPEDIAMETER AND LENGTH.


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9-3329-331

90 DEGREE 4-HOLEADAPTER PADS ARE

IN ONE FOOTSPECIFY LENGTH

TINNED COPPER SUPER-FLEX, ROPELAY, TINNED COPPER CONDUCTOR

TINNED COPPER SUPER-FLEX, ROPELAY, TINNED COPPER CONDUCTOR

AVAILABLE

(3-10 FEET)

INCREMENTS

EXIST. PAD

EXIST. PAD

3/4"X4" Cu.@ 90°

(1X-4X) 750 MCM Cu.

1/2" S.S. BOLTS, BELLEVILEWASHERS, FLAT WASHERSAND NUTS AS REQUIRED

3" TO 8" RADIUS

9-332-2

28"

@ 90°3/4"X4" Cu.EXIST. PAD

9-332-3

(1X-4X) 750 MCM Cu.

CRIMP PAD (4X)

SHORT SPAN FLEX BRAID JUMPERS

EXIST. PAD

12"-18"Busbar

Separation

(2 PLACES)

20± 2"

(4 HOLE NEMA)

(4 HOLE NEMA)

5.0"

5.0"

2 KA AND 3 KA JUMPERSARE SUPPLIED WITHCONDUCTOR SPACERS

1 KA PADS ARE 2 HOLE NEMA2 KA,3 KA AND 4 KA ARE 4-HOLE NEMAOR 6-HOLE NEMA PADS PERCUSTOMER SPECIFICATIONS

: 1 KA, 2 KA, 3 KA AND 4 KA

Tinned Copper

NTS

03/14/00 9-331& 9-332M 0

Super-flexible Busbar Jumpers, 1 KA - 4 KA

HORIZONTAL ARMS FOR SHIPPING.

Eliminate bushing fatigue and failures caused by rigid conductors orcorroded, once flexible, conductors with custom super-flexible jump-ers. Use our stainless steel shear-nuts with the jumpers to make re-peatable and reliable electrical connections to electrical equipment.

ALL JUMPERS ARE DESIGNED TO HAVE A MAXIMUM TEMPERATURE RISE OF 33°CAT 25°C AMBIENT TEMPERATURE.

JUMPERS CAN BE SUPPLIED WITH UV STABLE, TRACK RESISTANT INSULATION FORWILDLIFE PROTECTION. CONSULT FACTORY FOR YOUR SPECIFIC REQUIREMENTS

6.50


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As described

NTS

02/08/01 9-391M 0

Flexible Tinned Copper Braid Jumper, 800 A

Swaged, tinned copper, flexible flat braids are available in cus-tomer specified lengths. Terminal pad configuration are availablein 150 to 1200 A continuous current ratings. Use Inertia stainlesssteel shear-nuts with the jumpers to make repeatable and reliableelectrical connections to electrical equipment.

SPECIFY LENGTHIN 1" INCREMENTS

2.0"

.62"

1.75"

Ø0.563"

3.0"

1.0"

2-3/8" 4/0 TINNED COPPER BRAID(2 PIECES) FOR 800 AMPCONTINUOUS

.50"

TIN PLATEDCOPPER NEMA PADS

6.51


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3/8" PLATES

(4)Ø 0.687 HOLES ON 5.00" B.C. AT 90°

4.75"

HOT DIP GALV.A36 H.R.S.

9-202M5" BC TO 3" BC INSULATOR STAND-OFF

9-348M5" BC x 4" INSULATOR STAND-OFF

Ø 11/16"Ø 9/16"(4X) (4X)

As shownH.D. Galv. NTS

10/13/99 9-202 & 9-348M 0

Station Post Insulator Adapters, 5” Bolt Circle

Standoffs- for replacing pin cap insulators with stronger station postinsulators and conversion from 5” bolt circle insulators to 3” boltcircle insulators and vice versa.

6.70


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CONDUCTOR

INSTALLATION:1. SLIDE CONDUCTOR INTO SLOT UNTIL GRIPPED BY CAPTIVATING WIRE CUTOUT.

NOTE: SMALL HOLE IS FOR NO. 6 WIRE, LARGE HOLE IS FOR NO. 2 WIRE.

2. GRIP SPRING CLAMP WITH PLIERS AND SLIDE IT UP TO THE CONDUCTOR.

PHASE SPACER FOR SMALL CROSSECTIONOVERHEAD CONDUCTOR. LIGHTWEIGHTSOLUTION TO PREVENT PHASES FROMCONTACTING EACH OTHER DURINGHIGH WIND CONDITIONS.

65 kV WET WITHSTAND VOLTAGE, MINIMUM

TENSILE STRENGTH MIN. AT 100°C: 4.8kpsiELECTRICAL WET WITHSTAND: 4,500 VOLTS/in.ULTRAVIOLET RESISTANCE: 80% MAX ELONGATION AT 600kj/m^2

STAINLESS STEELSPRING CLAMPS

9/16" DIA.

COLOR: SKY GRAY

SPECIFICATIONS:

MATERIAL: DELRIN 527SILICONE FINISH .001 IN. MIN.

WEIGHT: 5.0 OZ.

18-1/2" NO. 2 CONDUCTOR

17-1/2" NO 6 CONDUCTOR

DELRIN 527

NTS

11/27/01 9-151A M 0

PHASE SPACER, 5-25 kV,#6 & #2 AWG.

Lightweight and economical conductor spacers install in seconds andprovide long service life. The shedded design provides extended wetcreepage distance. The UV resistant, silicone finish provide years ofservice in the most severe environments.

6.71


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Grey PVC/Al

NTS

05/21/99 9-305 M 0

Fuse Holder, 24”, Pole Mounted

24"29"

1/2" LAG BOLT HOLE MOUNTING

MOISTURE WEEP HOLE

SLIP ON CAP

CAP LANYARD

4" DIAMETER PVC PIPE

FASTENERS

3/16"X 1-1/2 ALUMINUM

Pole top fuse canisters provide storage for unique or uncommonfuses not routinely carried on service vehicles. Site-specific fusescan be stored on the pole where these fuses are used, making themavailable when and where they are needed.

6.72


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As shown

NTS

09/11/00 9-399 M 0

Torque-limiting Shear Nut, 1/2-13

Shear Nut Construction Material Shear PointSize

1/2-13 304 Stainless steel 45-55 lbs1/2-13 Zinc, Die Cast 25-30 lbs

The above sizes are used for field connections to electrical equipment where specifictorque values are required to compress Belleville washers and ensure a good electricalconnection without the need for torque wrenches and the associated calibration of thattool. Other sizes, materials and torque-limits are available. Consult the factory for yourspecific needs.

Stainless steel shear-nuts make repeatable and reliable electricalconnections to electrical apparatus. Zinc, die cast shear nuts canbe used for lower torque requirements. Installing rod guides, stepsand other hardware to fiberglass poles or crossarms can damagethe fiberglass pole or crossarm when excessive torque is applied.Shear nuts mitigate this problem.

1/2-13 2B

0.927

O-RING

SHEAR POINT

6.73


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Drawing No: Rev.

Fax: (209) 931-8186

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HIGH VOLTAGE SWITCHGEAR & AUTOMATION …...CAT. NO: 040930G May, 2008 INERTIA Engineering & Machine...

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Transcript of HIGH VOLTAGE SWITCHGEAR & AUTOMATION …...CAT. NO: 040930G May, 2008 INERTIA Engineering & Machine...