DISTRIBUTION SOLUTIONS UniSec Installation manual · DISTRIBUTION SOLUTIONS UniSec Installation...

— D IS TR I BUTI ON SOLUTI ONS

UniSecInstallation manual

IndexSafety 2Introduction 31. Productinformation 4 1.1 Unitdimensions 4 1.2 Weights 72. Transportandstorage 8

2.1 Conditionondelivery 8

2.2 Unpackingatinstallationsite 8 2.3 Handlingtheunitsasfar astheinstallationsite 9 2.4 Temporarystorage 11 2.5 Deliveryresponsibilities 123. Assemblyoftheswitchgearonsite 13 3.1 Generalwarningsandcautions 13 3.2 Preparations 13 3.3 Dimensionalfoundationdrawings 13 3.4 Foundations 23 3.5 Installationprocedureforunits 23 3.6 Gasventducts 34 3.7 Couplingtopanelswithwithdrawable

circuit-breakerandswitch-disconnector (GSec) 38

4. Cableconnections 39 4.1 Installingthecables 39 4.2 Controlcables 45 4.3 Earthingtheswitchgear 45 4.4 Finalinstallationwork 46A. Tighteningtorquesforsteelscrewsand

nuts/bolts 47

B. Toolsrequiredforinstallation 51

2 U N I S EC I NS TA L L ATI O N M A N UA L

— Safety

For your safety! • Strictlyfollowthismanual.• Onlyinstallswitchgearinindoorconditionssuitableforelectricalequipment.

• Ensurethatinstallation,operationandmaintenanceisonlycarriedoutbyprofessionalelectricians.

• Complyfullywiththestandardsinforce(IECorlocal),theconnectionconditionsofthelocalpowerutilityandtheapplicablesafetyatworkregulations.

• Observetherelevantinformationinthemanualforallactionsinvolvingtheswitchgear.

• Foruseofthecircuit-breaker,refertotheinstructionbooklet.

Skilled personnelAlltheinstallation,puttingintoservice,runningandmaintenanceoperationsmustbecarriedoutbyskilledpersonnelwithin-depthknowledgeoftheapparatus.Whencarryingoutanymaintenancework,theregulationsinthecountryofinstallationmustbestrictlycompliedwith.Maintenanceworkmustonlybeperformedinaprofessionalwaybytrainedpersonnelfamiliarwiththecharacteristicsoftheswitchgear,inaccordancewithalltherelevantIECsafetyregulationsandthoseofothertechnicalauthorities,alsorespectingotheroverridinginstructions.ItisrecommendedthatABBservicepersonnelbecalledintoperformtheservicingandrepairwork.

Crucial informationPayspecialattentiontotheinformationshowninthemanualbythefollowingsymbol:

Afterthissymboltherearefourdifferentindicationswhichexplainthepossibletypeofinjuriesordamagewhichmaybecausedwhentheinstructions,includingrecommendedsafetyprecautions,arenotfollowed.

• DANGER - identifies the most serious and immediate hazards which can result in serious personal injury or death

• WARNING - identifies hazards or unsafe practices which can result in serious personal injury or death

• CAUTION - identifies hazards or unsafe practices which can result in minor personal injury or product or property damage

• NOTE - identifies important procedures or requirements that, if not followed, can result in product or property damages

WARNINGMake sure that the specified electrical ratings are not exceeded under switchgear operating conditions. Keep the manuals accessible to all personnel involved in installation, operation and maintenance. The user’s personnel are responsible for all matters regarding safety in the workplace and correct use of the switchgear.

WARNING Always follow the instructions in the manual and respect the rules of good engineering practice (GEP)! Hazardous voltages can cause serious injury or death! Disconnect the power and earth live parts before proceeding with any work on the apparatus. Follow the safety regulations in force in the place of installation.

Contact us!Ifyouhaveanyfurtherquestionsaboutthismanual,ourfieldserviceteamwillbepleasedtohelp.Seethebacksideofthismanualforcontactinformation.

D IS TR I B U TI O N SO LU TI O NS 3

General aspectsUniSecisanair-insulatedswitchgearforindooruse,designedformediumvoltagesecondarydistribution.UniSecswitchgearistheresultofcontinuousinnovation,followingthedesiretomeetever-changingmarketneeds.Thisnewseriesofswitchgearoffersawiderangeoflong-termtechnicalsolutions.Safety,reliability,user-friendlinessandsimplicityofinstallation,aswellenvironmentalsustainabilitywerethedrivingforcesindevelopingthisswitchgear.UniSecisstructuredbyplacingstandardizedunitssidebysideinacoordinatedway.Constructionandtestingarecarriedoutinthefactory.

Installation manual ThismanualprovidesinformationoninstallationofUniSecunits.Itcontainsdetailsaboutproductdimensionsandweights,aswellasinstructionsforunpackinganddeliverytotheinstallationsite.Step-by-stepinstructionsshowtheprocedureforinstallingtheswitchgear.

— Introduction

1070 110(*)

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U N I S EC I NS TA L L ATI O N M A N UA L4

— 1.Productinformation

Code Description Width

190 mm 375 mm 500 mm 600 mm 750 mm

SDC Unitwithswitch-disconnector • • •SDS Unitwithswitch-disconnector–disconnection • • •SDD Unitwithdoubleswitch-disconnector •SDM Disconnectingunitwithmeasurementswithswitch-

disconnector •UMP Universalmeasurementunit •DRC Directincomingunitwithmeasurementsandbusbarearthing • •DRS Riserunit–measurements • •SFV Switch-disconnectorwithfuse–measurements •SFC Switch-disconnectorunitwithfuses • • •SFS Switch-disconnectorwithfuses–disconnection • •SBC Circuit-breakerunitwithswitch-disconnector •SBC-W Withdrawablecircuit-breakerunitwithswitch-disconnector •SBS Circuit-breakerunitwithswitch-disconnector–disconnection •SBS-W Withdrawablecircuit-breakerunitwithswitch-disconnector–

disconnection •SBM Disconnectionunitwithmeasurementswithcircuit-breakerand

doubledisconnector •SBR Invertedcircuit-breakerunit •HBC Unitwithintegratedcircuit-breakerandswitch-disconnector •RLC/RRC Rightandleftsidecableriser(forSBRunitsonly) •WBC Unitwithwithdrawablecircuit-breaker •(*) •(**)

WBS Unitwithwithdrawablecircuit-breaker–disconnection •(*) •(**)

BME Busbarearthingandmeasurementunit •(*)

(*) 12-17,5kV(**) 24kV

1.1 Unit dimensions

Side view of the different LSC2A units

(*) Forpanelswithremovablecircuit-breakers

Figure 1. Side view of IAC A-FL 12.5 kA 1s (solution installed completely against a wall)

Figure 2. Side view IAC A-F 16 kA 1s (solution completely against the wall)

120 1200/1300

20

00

1070 110(*)120

20

20/

2320

17

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2000

110(*)1070100

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110(*)70 1070

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Side view of the different LSC2A units

Side view of the different LSC2B units


Figure 5. Side view IAC A-FLR 21 kA, with duct

Figure 3. Side view IAC A-FL 12.5 kA, with filters

Figure 6. Side view for panels with withdrawable circuit-breakers, IAC A-FLR 25 kA, 1 sec up to 17.5 kV and IAC A-FLR 16 kA, 1s at 24 kV with filters

Figure 4. Side view IAC A-FLR 16 kA, with filters

WBCWBSDRSforWBS

100 1200/1300

20

002

34

0

70 1200/1300

20

00

1200/1300

20

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110(*)1070120

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— 1.Productinformation

Side view of the different LSC2B units

Side view


Figure 9. Side view for panels with withdrawable circuit-breaker IAC A-FL 12.5 kA 1s (solution installed completely against a wall)

Figure 7. Side view for panels with withdrawable circuit-breakers, IAC A-FLR 25 kA, 1 sec up to 17.5 kV and IAC A-FLR 21 kA, 1s at 24 kV with duct

Figure 10. Side view of IAC AFLR 21kA x 1s - Downward

Figure 8. Side view for panels with withdrawable circuit-breaker IAC A-FL 12.5 kA 1s with filters

WBCWBSDRSforWBS


1.2 WeightsThefollowingtableshowsthemaximumweightsofthedifferentunits. Weightsareindicative,withoutCTs,VTsandfuses.

ForfurtherinformationpleasecontactABB.

Unit Panel width Panel width

1700 mm 2000 mmmm Kg Kg

SDC 375 150(1) 160(1)

500 170(1) 180(1)

750 195(2) 210(2)

SDS 375 155(2) 165(2)

500 175(2) 185(2)

750 200(2) 215(2)

SDM 750 230(2) 250(2)

SDD 750 270(2) 290(2)

UMP 750 200(2) -

SFC 375 155(3) 160(3)

500 175(3) 185(3)

750 200(3) 215(3)

SFS 375 165(3) 175(3)

500 180(3) 190(3)

SBC 750 355(2) 355(2)

SBC-W 750 355(2) 355(2)

SBS 750 355(2) 375(2)

SBS-W 750 355(2) 375(2)

SBM 750 390(2) 410(2)

SBR 750 335(2) -

HBC 500 250(2) 275(2)

SFV 500 175(2) 185(2)

DRC 375 120(2) 130(2)

500 135(2) 145(2)

DRS 500 - -

WBC 600 - 600(1)

750 - 750(1)

WBS 600 - 600(1)

750 - 750(1)

BME 600 - 450(1)

(1) WithoutCT(2) WithoutCTorVT(3) Withoutfuses

Table 1. Maximum weights of units


— 2.Transportandstorage

2.1 Condition on deliveryDelivery packingUniSecisdeliveredeitherasasingleunitorinmultipleswitchgearunitswithalengthofnomorethan2.0m,andwiththedoorsclosed.Thesizeofthepack(s)dependsonthenumberandtypeofunitsandhastobedefinedseparatelyineachcase.Thefactory-assembledunitshavebeeninspectedbythemanufacturerinthefactoryforcompletenessintermsoftheorderand,atthesametime,subjectedtoroutinetestingaccordingtoIECpublication62271-200inordertoverifycorrectconstructionandfunctions.Thebranchbusbarsarefactory-assembledforeachunit.However,themainbusbarconnectionsbetweendifferentunitsmustbecarriedoutonsite.Themainbusbarsandtheiraccessoriesarepackedseparatelyfordelivery.

2.2 Unpacking at installation siteStorage and inspectionTheUniSecswitchgearmustonlybeinstalledindoors.Itisthereforeimportanttostoretheswitchgearunitsintheirtransportpackingforaslongaspossible.Donotstoreswitchgearunitsoutside.Thepacksshouldonlybeopenedtoinspectforanydamagecausedduringtransport.Afterinspection,thepackingshouldberestoredtoitsoriginalcondition.

NOTE Any transport damage must be reported to the carrier/forwarder immediately. If installation of the switchgear is to be made immediately after delivery, the transport packing must be removed, except for the plastic vapour corrosion inhibitor film covering the units, which must only be removed at the final switchgear installation site

UnpackingTheUniSecunitsarefixedtothepalletusingseparatefixingplates(2platesonthebackoftheunit)andbolts(2boltsonthefrontoftheunit)insidetheunit.

a)Removetheplasticfilmfromtheunits.b)Takeoffanddisposeofthefixingplatesand

boltsasthesewillnotbeneeded.c) Thetableshowsalistofthepackingmaterials

usedfortheswitchgearunitsandtheirpossiblerecyclingmethods.Packingmaterialsmayvaryfromcasetocase.Thelistgivesanindicationofthepossiblepackingmaterials.

Packing materialsTable2.listsallthepackingmaterialsusedintheswitchgear:

Raw material Possible recycling method

Plywood Recyclingordisposal

Unplanedwoodproducts Recyclingordisposal

Antistaticpolythenefilm Recyclingordisposal

Polytheneshrinkwrap Recyclingordisposal

VCI(vapourcorrosioninhibitor)film

Recyclingordisposal

Tape Recyclingordisposal

Foldedcardboardandpolystyrenereinforcements

Recyclingordisposal

Cornerprotections Recyclingordisposal

Table 2. Packing materials

Figure 11. Fixing plates outside the 375-500 mm unit


Figure 13. Bolt inside the unit (left side)

Figure 14. Bolt inside the unit (right side)

Figure 15.

Figure 12. Fixing plates outside the 750 mm unit

2.3 Handling the units as far as the installation site2.3.1 General warnings and cautions

DANGER Only carry out loading operations when it has been ensured that all precautionary measures to protect personnel and materials have been taken

CAUTION The switchgear units should usually be handled in an upright position. Take the high centre of gravity into account. Tilting or overturning must be avoided. If necessary, single units can be carried horizontally, for example, because of a low doorway. In such cases, the unit must be supported over a wide area

2.3.2 InstructionsTransport unitsThetransportunitsconsistofindividualunitsorsmallgroupsofunits.TheliftinghooksaresuitableforallUniSecunits(375mm,500mm,600mmand750mm).

Handling instructionsTheunitsmustbehandledintheuprightpositionusingamanualforkliftoraforklifttruckor,exceptionally,usingspecialrollingtubes(atleastfour).

CAUTION Thepackagesshouldbeplacedonalevelsurface.

Lifting instructionsUsethefollowingtoolsforlifting:• Crane• Fork-lifttruckand/or.


Operations to be carried out before lifting a) Installtheliftinghooksontheroofframe.

b)Repeattheoperationforallfourcornersoftheroofframe.

Switchgear ready for lifting: lifting hooks installed

Lifting dimensions and angleWhenliftingusingacrane,proceedasfollows:a)Fitliftingropesofanappropriateloadcapacity

withspringcatches.b)Keepanangleofatleast60°betweenthe

horizontalplaneandtheropesleadingtothecranehook.

Ifacraneisavailable,liftingcanbedonebyusingtheliftinghookswhicharedeliveredseparately.Theliftingprocedure,includinghowtoinstalltheliftinghooks,isillustratedontheright.

NOTE It is also possible to move units on a flat floor to the installation site by using rolling tubes. The rolling tube dimensions should be about 1 m in length and 20-25 mm in diameter

2.3.3 Lifting procedureParts

Figure 16.

Figure 19. Roof frame + lifting hooks

Figure 20. Lifting hooks installed on roof frame

Figure 17. Lifting hook

Figure 18. Roof frame on the top of the unit

Figure 21. 375 mm, 500 mm and 600 mm UniSec units

Figure 22. 750 mm UniSec unit

— 2.Transportandstorage


Figure 23. Dimensions and angles

Figure 24. Lifting

CAUTION Fourliftingropesofsufficientlengthmustbeusedwhenliftingseveralunitsorawholeswitchgear(4unitsatthemost,oramaximumlengthof2m).

Lifting by crane

Operations after lifting a)Dismantletheliftinghooks.b)Thesamehooksareusedagainforthenextunit.

2.4 Temporary storage2.4.1 General warnings and cautions

CAUTION The packing must be kept indoors immediately after arrival. The conditions must meet the environmental requirements of the IEC 60721-3-1 Standard, classification 1K3

CAUTION The vapour corrosion inhibitors placed in the units for protection against humidity during temporary storage and transport must not be removed until installation is completed

CAUTION The duration of the protective effect of the packing is limited to a few months when stored indoors in a dry place. ABB should be consulted in the case of longer storage periods or if the storage conditions differ from those indicated

2.4.2 Optimum storage conditionsDefinition: Optimumtemporarystorage,withoutnegativeconsequences,dependsoncompliancewiththeminimumrequirementsfortheunitsandpackingmaterials.

Minimumairtemperature °C -5(*)

Maximumairtemperature °C +40

Minimumrelativehumidity % 5

Maximumrelativehumidity % 95

Rateoftemperaturechange °C/min 0,5

(*) Forservicetemperature-25°Candstoragetemperature-40°C,pleaseaskABB

Table 3. Climatic conditions according to IEC 60721-3-1, classification 1K3


2.5 Delivery responsibilitiesResponsibilities Theresponsibilitiesoftheconsigneewhentheswitchgeararrivesonsiteinclude,butarenotlimitedto,thefollowing:

• Checkingtheconsignmentforcompletenessandlackofanydamage(e.g.forsignsofhumidityanditsdetrimentaleffects).Incaseofdoubt,thepackingmustbeopenedandthenproperlyresealed

NOTE Always take photographs to document any major damage

• Thepackinglistincludesanyseparateadditionalmaterial(notinstalled).Thismaterialcanoftenbefoundinthefirstunitoftheswitchgear

Ifanyquantitiesareshort,ordefectsortransportdamagearenoted,thesemustbe:• Documentedontherespectiveshipping

document• Immediatelynotifiedtotherelevantcarrieror

forwardingagentinaccordancewiththerelativeliabilityregulations

Type of packingSpecialinstructionsdependingonthetypeofpackingaregivenbelow:

1. Units with basic packing or without packing1) Useadry,well-ventilatedplacewithclimatic

conditionsinaccordancewithTable3.2)Storetheunitsupright.3)Donotstackunits.4)Unitswithbasicpacking:

• Openthepacking,atleastpartially5)Unitswithoutpacking:

• Coverwithnon-adherentprotectivesheeting• Ensurethereissufficientaircirculation• Regularlycheckforanycondensationuntil

installationisstarted

2. Units with seaworthy or similar packing with internal protective sheeting

1)Storethetransportunits:•protectedfromtheweather•inadryplace•safefromanydamage

2)Checkthepackingforanydamage


— 3.Assemblyoftheswitchgearonsite

3.1 General warnings and cautions

WARNING Once the documents have been prepared for final mounting, the binding data supplied by ABB must always be taken into account!

WARNING In order to obtain an optimal installation sequence and ensure high-quality standards, on-site installation of the switchgear must only be carried out by specially trained and skilled personnel, or at least by personnel supervised and monitored by competent and responsible people

NOTE Where switchgear units have roof-mounted gas vent ducts or large auxiliary circuit compartments, it must be ensured that the ceiling height is sufficient for these

ATTENTION The access to the Swg Room while Swb is in service is permitted to authorized personnel only who has specific expertise on electrical safety according to CEI 11-27 or IEC/EN 50110

3.2 PreparationsBefore startingTocommenceinstallationonsite,theswitchgearroommustbeabsolutelysuitable,i.e.providedwithlightingandelectricity,fittedwithapadlock,ventilationfacilitiesandmustalsobedry.Allthenecessarypreparations,suchaswallopenings,ducts,etc.forlayingthepowerandcontrolcablesasfarastheswitchgear,mustalreadyhavebeencompleted.Beforeproceedingwithinstallation:a)Cleantheinstallationsiteb)Visiblytracetheperimeterofalltheunitsmaking

uptheswitchgearontheslab,takingtheminimumclearancesofwallandanyobstaclesinto account

3.3 Dimensional foundation drawings

3.3.1 Room layout

NOTE When gas vents or absorbers are foreseen, there must be a minimum space of 185 mm between the back of the switchgear and the installation room wall

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(*) 1300mmatleastforpanelswithcircuit-breaker

Installation room

Theinstallationroommustbepreparedtosuitthesizeandversionoftheswitchgear.Compliancewiththedistancesindicatedwillensurethattheequipmentfunctionscorrectlyandsafely.ConsultABBiftheinstallationconditionsdifferfromthoseindicated.

Room layout

IAC A-FL 12.5 kA, 1sec against a wall IAC A-F 16 kA

Figure 25. Distances from the walls of the installation room with compartment for the exhaust gas on the rear, solution IAC A-FL 12.5 kA, 1s against the wall

Figure 26. Distance from walls of installation room with gas exhausting compartment at rear, solution IAC A-F 16 kA 1s

ATTENTION IAC A-FL version – No access to Rear side of the Swb while is in service. Installation distances to be respected

ATTENTION IAC A-FL version – Do not access the rear or side parts of the switchgear while this is under service conditions. Compliance with the installation distances is mandatory


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(*) 1300mmatleastforpanelswithcircuit-breaker

Figure 27. Minimum distances from the walls of the installation room, solution IAC A-FL 12.5 kA 1s with filters installed on each individual unit

Figure 28. Minimum distances from the walls of the installation room, solution IAC A-FLR 16 kA 1s with filters installed on each unit

ATTENTION IAC A-FL version – Do not access the rear part of the switchgear while this is under service conditions. Compliance with the installation distances is mandatory

ATTENTION IAC A-FLR version – No access limitations to the Swg Room. Installation distances to be respected

Room layout

IAC A-FL 12.5 kA filters IAC A-FLR 16 kA against a wall

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Room layout

IAC A-FLR 21 kA filters IAC A-FLR 21 and 25 kA(2) gas exhaust duct(2)

(*) 1300mmatleast,forpanelswithcircuit-breaker(1) ForspecialconditionsdefinedbyABB,theminimumdistancecanbeupto130mm(2)Onlyfor12kVLSC2Aunits,height2000mmandwidth750mm(exceptforunitsSBC-W,SBS-W,SDD,UMPandSBR)

Figure 29. Minimum distances from the walls of the installation room, solution IAC A-FLR 21 kA 1s with filters installed on each unit

Figure 30. Minimum distances from the walls of the installation room, solution IAC A-FLR 21/25(2) kA 1s with gas exhaust ducts

ATTENTION IAC A-FLR version – No access limitations to the Swg Room. Installation distances to be respected


30m

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min

. 400

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155


IACA-FLR21kAdownwardgasexhaust

Room layout

IAC A-FLR 21 kA downward gas exhaust

Room layout for unit with withdrawable

circuit-breaker (LSC2B)

IAC A-FLR 25 kA filters

(*) 1300mmatleast,forpanelswithcircuit-breaker(1) ForspecialconditionsdefinedbyABB,theminimumdistancecanbeupto130mm(2)Onlyfor12kVLSC2Aunits,height2000mmandwidth750mm(exceptforunitsSBC-W,SBS-W,SDD,UMPandSBR)

Only for 12 kV LSC2A units, height 2000 mm and width 750 mm (except for units SBC-W, SBS-W, SDD, UMP and SBR)

Figure 32. Minimum distances from the walls of the installation room, solution IAC A-FLR 25 kA, 1s @ 12-17.5 and 16 kA, 1s @ 24 kV with filters installed on each unit

30m

in

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200 min (1)

2000

200 min (2) 1200/1300 1200 min

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Room layout for unit with withdrawable

circuit-breaker (LSC2B)

IAC A-FLR 25 kA gas exhaust duct IAC A-FL 12.5 kA filters

(1)ForspecialconditionsdefinedbyABB,theinimumdistancecanbeupto130mm(2)Inthecaseofspecialconditions,contactABBfortheminimumdistancesrequired

Figure 33. Minimum distances from the walls of the installation room, solution IAC A-FLR 25 kA, 1s @ 12-17.5 and 21 kA, 1s @ 24 kV with gas exhaust ducts

Figure 34. Minimum distances from walls of installation room, solution IAC A-FL 12.5 kA 1s with filters installed on each individual unit


10

37

43,5

375

77,5 220

20

26

92

43,5

Ø12,5

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10

37

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500

97,5 230

Ø12,5

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26

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2

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140 220

Ø12,5

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20

26

92

43,5


3.3.2 Cable passage hole dimensions and fixing points

Thefollowingfiguresshowthelocationsandsizesofthecablepassageholesunderthedifferentunits.Theseholesmustbemadebeforeinstallationoftheswitchgear.Thefiguresalsoshowtheswitchgearfixingpoints.Thereisonefixingpointineachcorneroftheunit(4perunit).Unitswithoutcableentryhavedimensionsandfixingpointsaccordingtothewidthoftheunit10mmanchoringboltscanbeusedforfixing.

—

375 mm wide units

—

Width 500 mm for DRC unit

—

500 mm wide units—

Width 750 mm for SBR unit

12,5

3312

67

43,5 43,5

220

268,

58 65

0

284

00

500

1300

10

37

150

25 100

Ø12,5

15

8,5

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7,5

69

2

10

37

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327 230

Ø12,5

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10

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Ø12,5

43.5

75

32

30

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25

12

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600

400 100

43.5

301

.5 81

10

125

Ø12.5

43.5

77

32

30

800

25

13

00

550 100

750

43.5


—

DRC/W units—

190 mm width for RLC/RRC units —

750 mm wide units

—

DRS for WBC/WBS/BME—

With 600 mm for units with withdrawable circuit-breakers up to 17.5 kV WBC WBS and BME (without cable outlet)

—

With 750 mm for units with withdrawable circuit-breakers up to 24 kV WBC WBS (without cable outlet)



—Medium voltage cable lengths and locations

Details

190 mm width 375 mm width 500 mm width 600 mm width 750 mm width

A (mm) B (mm) A (mm) B (mm) A (mm) B (mm) A (mm) B (mm) A (mm) B (mm)

SDC Basic – – 920 210 920 275 – – – –

WithCT – – – – 530 275 – – 530 265

SDM Basic – – – – – – – – 525(1) 275(1)

SDD Basic – – – – – – – – 920 210

SFC 292mmfuse – – 600 200 600 240 – – 570 400

442mmfuse – – 450 200 450 240 – – 570 400

SBC/ SBC-W

Basic – – – – – – – – 610 355

WithCT – – – – – – – – 500 340

DRC Basic – – 870 180 670 240 – – – –

WithCT – – – – 530 275 – – – –

SBR Basic – – – – – – – – 400 390

UMP WithCT – – – – – – – – 550 270

HBC Basic – – – – 608 275 – – – –

WithCT – – – – 460 325 – – – –

WithsensorKevcr

– – – – 583/450(3) 275 – – – –

RLC/RRCH1700 Basic 1520 265 – – – – – – – –

With SBR 1495 310 – – – – – – – –

WithHBC 1435 280 – – – – – – – –

RLC/RRCH2000 Basic 1645 305 – – – – – – – –

WBC/BME BaseplateorwithCT

– – – – – – 600 150(2) 600 165(2)

(1)Withoptionalcableterminal(2)Distancebetweensidewallofpanelandfirstconnectioncable(3)Centralphase(L2)

RLCunit

3.3.3 Medium voltage cable locations and lengths

Themediumvoltagecablelengths(distanceofthecableconnectionpointfromthefloor)dependontheunitsandaccessoriesused.

Thefollowingfiguresandtableshowthecablelengthsandlocationsforthedifferentunits.


LSC2B units

—Lunghezze e posizioni dei cavi di media tensione

Details

600 mm width 750 mm width

A (mm) B (mm) C (mm) A (mm) B (mm) C (mm)

WBC/BME BaseplateorwithCT 600 150(1) 332 600 165(1) 367

(1)Distancebetweensidewallofpanelandfirstconnectioncable

LSC2Bunit(front) LSC2Bunit(side)



3.5.2.2 Top plate removal from BIG compartmentsTheplateisremovedinthefollowingway:a)Unscrewthescrewfromthesupport.

b)Unscrewthescrewsfrombothendsofthetop.

3.4 Foundations

3.4.1 Foundation types

General aspectsTheswitchgearmustbeerectedonafoundationthatfulfilstherequirementofa2mmmaximumhorizontalheightdeviationinrelationtothelengthanddiagonaloftheswitchgear.Thesecalculationsmustbemadebytechnicallyqualifiedpersonnel.

3.5 Installation procedure for units

3.5.1 Assembly of the first two switchgear units

WARNING Before positioning the different switchgear units, check the floor levelling, with particular attention to the longitudinal flatness (maximum levelness 2/1000)

NOTE If horizontal gas vent ducts are provided, mount the joint brackets unit by unit right from the start (see 4.6.2)

3.5.2.1 Removing roof plates

Platedismantlingiscarriedoutasfollows:a)Unscrewthescrewspresentatbothendsofthe

roof.b)Removetheplate.

Figure 38. 375 mm wide units

Figure 39. 500 mm wide units

Figure 40.

Figure 41.


c) Liftandremovetheplate.

3.5.3 Connecting the units

NOTE Do not remove the roof frame in the case of units with roof applications and SBR units

Installationforeseesthefollowingoperations:a)Aligntwounitssidebyside.Beforepushingthe

twounitscompletelytogether,makesurethatthelowerjoiningplateoftheright-handunitisintheupperposition.

b)Screwthejoiningplateandtheunitplatestogether(with6TorxM6x12screws)sothattheyarefullytightened.Insertabolt(M8x20round-headedwithsquareneck)withanut(M8hexagonalnutwithflange)(figure45)totightentheunitsandthejoiningplate.


Figure 42.

Figure 44. Two units side by side

Figure 43.

Figure 45. Screws for the top joining plate

Figure 46. Plates installed

c)Insert5bolts(M10x20hexagonalwithflange)and5nuts(M10x20hexagonalwithflange)intotheLVandinstrumentcompartment(front,upperpartoftheunits),butdonottightenthemyet.


NOTE Do not remove ceiling frame in the case of functional units with roof applications and SBR units

f)ForWBCandWBSunits,insert6hexagonalboltswiththerelativenuts.

3.5.4 Assembling the remaining switchgear unitsAfterconnectingtwounits,bringthethirdunittotheplaceofinstallation.Thenrepeatthefollowingoperations:a)Removingtheroofplatesb)Connectingtheunitsc) Repeatthesameoperationsfortheremaining

units.

3.5.5 Switchgear fastening to the floor

Floor preparationThepanelsmustbepositionedonastandardreinforcedconcretefloor.Ifnecessary,thefloormustbepreparedwithracewaysforroutingthepowercables.Thepreparationtasksarethesameforalltypesofpanels(400-630A).Toreducethedepthoftheracewaysfor400-630Apanelsto350mm(orevendoawaywiththemincertaincases),thecubiclescanbeinstalledonaraisedbasemadeofreinforcedconcrete,whichmustbepreparedatthesametimeastheconstructionworksofthebuildinginquestion.

d)Insert8bolts(M10x20hexagonalwithflange)and8nuts(M10x20hexagonalwithflange)intothecablecompartment(front,lowerpartoftheunits),butdonottightenthemyet.

e)Useascrewdrivertotrimtheunitalignment.Tightenalltheboltsfromthefront.

Figure 47. Places for screws

Figure 49. Screw positions for WBC – WBS units

Figure 48. Screw positions


Raised panel position1) Theraisedpositioncanbeusedwhencable

racewayscannotbecreated.2) Thisdoesnotobstructtheactivitiesofthe

substation.

Surface flatness of the base 1) Passa2-meterleveloverthesurfaceofthebase

inalldirectionstocheckforflatnessandevenness.Themaximumdeflectionis5mm.

2) Topreventthebasefrombeingdamagedbyequipmentonwheels(e.g.:circuit-breakers),thesurfacemustpossess 33MPastrengthormore.

How to fasten the cubiclesThecubiclesmustbefastenedtogetherwiththesuppliedboltsandscrews.

3.5.6 Connecting the main busbarsGeneral warnings and precautions

DANGER A warning sign is placed on the top plate to indicate the presence of high voltage under the roof

CAUTION It is recommended to mount the busbars starting from the top of the units

NOTE Tighten to the correct torque. The torques are indicated in the “Tightening torques for steel screws and nuts/bolts” table

NOTE It is important for the screws to be of the correct length

The busbar connections are made through the top openingsa)Cleanandscrapethebusbarconnections.b)Cleantheinsulationofthebusbarsectionswitha

soft,dryclothandcheckforanyinsulationdamage.

c)Installthebusbarsunitbyunit.Insertthescrews,busbarsandotherrequiredcomponentsinthecorrectpositionsandtightenthemtothecorrecttorquesaccordingtotheinstructionsgivenbelow.

Instructions for different types of main busbar connectionsThemainbusbarsoverlapeachotherattheircontactpoints.Thismeansthateveryotherbusbarismountedontopoftheother,asshowninFigure50.Busbarspacersareusedintheendunitstokeepthebusbarsinacompletelyhorizontalposition.

NOTE Metallic terminal-covers are installed in the terminal units for 24 kV

NOTE Make sure the busbar spacers are positioned as shown in the figures below

Busbarspacer

1

Odd numbered

unit

2

Even numbered

unit

3

Odd numbered

unit

4

Even numbered

unit

5

Odd numbered

unit

Busbar Busbarspacer

Figure 50. Main busbar connections



Thefollowingfiguresshowthebusbarconnectionsforunitswithswitch-disconnector.ThecomponentsrequiredareindicatedinTable5.Themainbusbarconnectionsofeachunittypewithdifferentratedcurrentsandvoltagesareshown.EachfiguregivesareferencetothecorrespondingnumbersofthecomponentsinTable5.

All unit types, list of components used

Part Name

1 Springwasher

2 M10x40hexsocketscrew

3 Busbarspacer

4 Fielddiffuser

5 M10x60hexsocketscrew

6 Washer

7 M10nut

8 Washer

9 Insulatingterminalcover

10 SilverwasherD10

11 Busbar

12 ConicalspringwashersD10

13 HexagonalnutM10

14 BusbarspacerD10

All unit types, list of components used

Part Name

15 CompensationwasherD10

16 Round-headedsocketscrewM10x30

17 Round-headedsocketscrew M12x40


19 NutM12

20 ConicalspringwasherD12


22 BusbarspacerD12





27 M10x35button-headedandsquare-neckedbolt

Table5.Listofcomponentsused

11

2 2

3

1 1

2 2

3

3

1

1

1

2 2

1

4

3

4

3

2

2

4

3

3

1 11

3

3

5 55

3

1

3

3

5



Units with 12-17.5 kV, 630-800 A switch-disconnector

Units with 24 kV, 630 A switch-disconnector

Units with 12-17.5 kV, 1250 A switch-disconnector

25 25 2525

1 1 11

3

33

8 8 88

1 1 11

7

7

7 77

7

1

1 11

6

1

8

6

3

3

1 11

33

3

6

1

7

1

6

3

2626

8 8 8

1 1

7 7

33

7 77

25

25

25 25

1

1

1 1

4 43

3

2626


DRS/DRC 12-17.5 kV, 1250 A end or isolating units

DRS/DRC end or isolating unitsForDRCandDRSunits,thebusbarsarenotinstalleddirectlyonthetopoftheswitch-disconnectororbushing.

Thereforetotightenthescrewsproperly,thenutsmustbeinstalledunderthebusbars.

DRS/DRC 12-17.5 kV, 630-800 A end or isolating units

DRS/DRC 24 kV, 630 A end or isolating units

12

14

11

15

1213

1111

11

1312

15

11

14

12

16

13

16 16

12

15

12

14

11

12

15

11

14

12

16

13

11


For the SBR unit up to 24 kV, 630 A - Units with insulators

Units with current transformers and Combisensors

Busbar exit on the left Busbar exit on the right

Busbar exit on the left Busbar exit on the right


17

17

18

18

20

20

20

20

11

11

11

11

20

20

20

20

19

19

19

19


WBC - WBS, 630 A middle unit

WBC - WBS, 630 A end unit

WBC - WBS, 1250 A middle unit

WBC - WBS, 1250 A end unit

630 A middle unit 1250 A middle unit

630 A end unit 1250 A end unit

23

20

11

12

20

22

11

25

11

1122

11

10

21

25

24

12

1220

10 21

14

21

25

10

20

14

14

14

20


Panel for coupling unit with WBC – WBS to unit with 12-17.5 kV, 630 A

switch-disconnector

Panel for coupling unit with WBC – WBS to unit with 12-17.5 kV, 800 A

switch-disconnector

12-17.5 kV, 630 A middle unit 12-17.5 kV, 630 A end unit

12-17.5 kV, 800 A middle unit 12-17.5 kV, 800 A end unit


27

4

8

7

21

21

20

20

19

19


3.5.7 Reinstallazione delle piastre del tetto

L’installazioneprevedeleseguentioperazioni:1) Installarelapiastratetto.2)Rimontarelevitistaccatedurantelaproceduradi

smontaggio.3)Perleunitàterminaliedisezionamento: Installareladoppiapiastradeltetto.

Nonènecessarioavvitarelepiastre(soloperlaversioneIAC21kA1s).

Accertarsicheladoppiapiastradeltettosiaposizionatacomemostralafigura71.

Accertarsicheibordipiegatidelladoppiapiastrascompaianocompletamentealdisottodellapiastra.4) Installareilprofilodigiunzionedeltettoconsei

viti(vitiTorxM6x12).

Connection between SBS and DRC units

Connection to main busbars -

SBS to DRS 12-17.5 kV - 630-800 A

Busbar junction kit - 24 kV, 630 A

Figure 71. Installation of double roof plate

Figure 72. Outline of roof joining


c) Screw3additionalscrews(TorxM6x12)inthebottomplateasshowninFigure75.

d)Mountthehorizontalductontotheverticalduct.InsertthescrewsandnutsinitasshowninFigure77(4TorxM6x12screws,supportbarand2M6hexagonalnuts).

3.6 Gas vent ducts3.6.1 Installation of the gas vent ducts

Thegasventductsareusuallyalreadyinstalled.a) Installtheverticalpartofthegasventduct.

b) Insertscrewsintheverticalduct(6TorxM6x20screws)andinthebottomplate(5TorxM6x12screws),andtightenthemasshowninFigure74.


Figure 73. Installation of the vertical gas vent duct

Figure 75. Additional screws for the bottom plate

Figure 74. Screws for the vertical duct and bottom plate

Figure 76. Screws and nuts for the horizontal duct


3.6.2 Connecting the gas vent ducts

a)Installthelowerlockingbracketb) Installtheupperlockingbracketbarandscrewup

thescrews(2hexagonalboltswithflangeM6x10)Figure79showsanadditionalductandendplate.

Connectingthesepartscanbedoneinthesamewayasinthepreviousstages.Anadditionalductisusedintheendunittodirectanygasduetoarcfaultsoutoftheswitchgearroom.Theswitchboardisalwaysprovidedwithanadditionalduct1metrelong.Onrequestanadditionalductwithamaximumlengthof2metrescanbesupplied.Inthecaseof750mmunits:a) Installthelargebottomplateb) Installtheplateinthecentreofthegasvent

ducts.

Example of lateral gas outlet

Figure 77. Installed gas vent duct

Figure 79. Connected gas vent duct; additional duct and end plate

Figure 78. Upper locking bracket

Figure 80. View from front


Figure 81. Side view

Figure 82. View from front


Figure 85. View from above


Example of raised lateral gas outlet

Example of rear outlet




Figure 87. View from above

Example of raised rear outlet 3.6.3 Gas exhaust filters 16 kA - Version BE

Rear closing

Rear closing

200

0

200

0

170

0/20

00

600750

500750

LSC2A LSC2ALSC2B



ThedifferentdesignofthepanelsWBC/WBS/BMEandthedifferentheightoftheomnibusbusbarsnotalloweddirectcouplingwiththepanelswithswitch-disconnectorand/orremovablecircuitbreakerbothH=1700mmandH=2000mm.Adapterpanelshavebeencreatedforthistypeofcompartmentsoastoallowthebusbarstobeconnected.Theheightoftheadapterpanelis2000mm.Theadapterpanelkeepsallthecharacteristicsofastandardpanelandcanthereforebeusedasanincoming/outgoingunit.

3.7 Coupling to panels with withdrawable circuit-breaker and switch-disconnector (GSec)

Theavailableadapterpanelsare:

UnitWidth(mm)

Weight (*)

(kg)

SDC 500 220

SFC 500 225

SFV 500 225

SBC(1) 750 380

DRC 500 145

(*) Estimatedweight,consideringthebaseunitwith630Abusbars,withoutTA,TVandfuses

(1) CanbecoupledonlyontheleftsideofWBC/WBS/BMEunitswithwithdrawablecircuit-breakers

AnadapterpanelallowingUniSecswitchgeartobecoupledtotheotherABBswitchgear(UniMixandUniSwitch)isavailableonrequest.

Figure 89.

1

3

41

32

5

2

4


Operations1.Dismantlethecableclamps,cableguidesplines,

fairleadsandthefloorsheeta) Unscrewtheeightboltsonthefloorandremove

thebottomplates.

2.Cablesa)Pullthecablesthroughtheopenbottomintothe

unit.Measureandcutthecablestosufficientlength,takingintoconsiderationtheinstallationofthecableterminationsandcableterminals.

b)Adaptthefairleadstothecablediameterandfitthemontothecable.

4.1 Installing the cables

NOTE The position of the medium voltage cables are positioned L1, L2 and L3 front to back

4.1.1 Installing the cablesParts

1.Floorsheet2.Fairleads3.Cableguidespline4.Cableclampingscrew

NOTE The clamping screws are optional

1.Cablecover2.Cableseal3.Cablesupport4.Hexagonalnutswithflange9ADA289M6- steel8A2F5.Cheese-headTorxplusscrew.ScrewM6x12

Fastite200005HQ-BA

— 4.Cableconnections

Figure 91. Medium voltage cable cover

Figure 90. Parts

Figure 92. Dismantling completed

Figure 93. Cables and reducer rings


NOTE In the case of a circuit-breaker, fit the floor plates as far apart from each other as possible so that the cables can be fitted directly to as vertical a position as possible

NOTE During mounting of the power cables, check that earth connection passes through the toroid (see figure below)

NOTE Check that P1 contacts of the toroid is mounted on supply side of the plant

4. Cable clampsa)Re-installtheloosepartsasshowninFigure97.b)Tightenall6nuts.

c)Preparethecableinsulatingendsandmountthemonthecablecoresaccordingtothemanufacturer’sinstructions.

d)ConnectthecablestothecableterminalsasshowninFigure94.

Inaswitch-fusecombination,themaximumterminalwidthis30mm.

3.Cableclampsa)Remove2nuts(perphase)fromthelefthandside

ofthecableclamps.b)Removetheloosesidesofthecableclamps.c)Insertthefloorplates,fairleads,cableclampsand

cableguidesplines,togetherwith8nuts,ontheflooroftheunitasshowninFigure95.

d)Screwupalleightnuts.

NOTE With SBC-W, the circuit-breaker can be removed as indicated in the Operation manual

Figure 94. Connecting the cables

Figure 95. Installation of the floor plates, cable guide splines, cable clamps and fairleads

Figure 96.

Figure 97. Installing the loose parts of the cable clamps



1)UnscrewatthetopoftheRLCfrontcover,liftitandremovethefrontRLCcover.

2)UnscrewthetopandbackpartoftheRLCsidecover,liftitandremovetheRLCsidecover.

3)Unscrew,liftandremovethetwometalsheets.

NOTE Tighten to the correct torque! See the tightening torques table at the end of the manual!

4.1.2 Installing the cables in the RLC unitRLC unit cable compartmentOpentheRLCcablecompartment.

Figure 98. Cables readyFigure 100. RLC front cover

Figure 101. RLC cover

Figure 99. Cable compartment


Connect the MV cables.1)Cutthecableglandsatthebottomofthe

RLCunitaccordingtothecablediameterandfixthecablesinthecentreoftheRLCunittothelockingpart.

4)Unscrew,liftandremovethecableprotectionsheetoftheRLCunit.


Figure 103. RLC internal cover

Figure 105. Cable glands on the bottom of the RLC unit

Figure 104. RLC unit cable locking parts

Figure 102. RLC transversal part

A1

B1B

C

D1

D E1 E2

D2

E3

E

C1 C2

A


4.1.3 Installing the WBC unit cablesa) OpencabledoorAbyunscrewingknurledscrews

A1.

b) Ifnecessary,removethelowerfrontcoverbyunscrewingscrewsC1andC2.

c) Ifsupplied,removeplateDofthevoltagetransformers(VT)byunscrewingscrewsD1andD2(dependonthetypeofVT).

d)Ifsupplied,removesurgearresterEbyunscrewingscrewsE1,E2andE3.

2)Connectthecablestothecircuitbusbar.

3)Connectthecableearthingscreenbesidetheplasticlockingdevices.

ClosetheRLCunitcablecompartment.

CarryoutthesameoperationsinreverseordertoopentheRLCunitcablecompartment.

Figure 108. RLC unit earthing cable terminals

Figure 107. RLC unit cable terminal connections

Figure 106. Exploded drawing of the cable locking parts on the bottom of the RLC unit

Figure 109.

(on both sides)

Figure 110.

Figure 111.

H1

H

A

B

C

D E H

G

F



e) ConnecttheMVcablesHusingtheH1bolts.

NOTE If there is more space, the circuit-breaker compartment plate can be dismantled

f) Re-assemblyofallcomponents.

Figure 112.

Figure 113.

Cable connections

Panels Width Maximum quantity of cables per phase

Max cross section of cables (mm2)

LSC2A SDC 375 1(*) 400

500 1 630

2 300

750 1 400

2 300

SFC 375 1 95

500 1 95

750 1 95

SBC/SBC-W

750 1 630

2 300

HBC 500 1 630

2 300

DRC 375 1(*) 400

500 1 630

2 300

UMP 750 1 400

2 300

RLC/RRC 190 1 400

LSC2B WBC/BME 600 1 630

2 400

4 300

750 2 400

4 240

(*)2(two)300mm2cables@12Kv

Table 7. Cable connections


4.3 Earthing the switchgearEachunitisfittedwithearthingbusbarsthatrunlongitudinallyinthelowerfrontpartoftheunit.Thesebusbarsmustbeconnectedtogetherasshowninchapter5.3.1.Thestationearthingsystemmustbeconnectedtotheendunitoftheswitchgear.Iftheswitchgearconsistsofmorethan8units,itisadvisabletoconnectthestationearthingsystemtobothendunits.TheexternalstationearthingconnectionpointinsidetheunitisshowninFigure118.Alltheapparatusisconnectedtotheearthingbusbarviatheswitchgearhousing.Theinterconnectionbetweenunitsiscapableofcarryingtheratedshort-timeandpeakwithstandcurrentfortheearthingcircuit.

4.3.1 Installing the earthing busbarInstallationoperationsareasfollows:a)Unscrewtheright-handscrew(whenthereis

anotherunitontherightside)andloosenanothertwoscrews.Thenmovethebusbartowardstheadjacentunitontheleft.

b)Movethebusbarfromtheunittotheright(whenthereisanotherunitontheright).Addthescrewontherightandscrewupallthescrewswiththecorrecttorque.

Figure 114. Control cable entries

Figure 115. Busbar moved towards the adjacent unit on the left

Figure 116. Busbar moved from the adjacent unit to the right

4.2 Control cablesTheinternalcablesbetweenunitsareeasilylaidthroughopeningsinthesidewallsoftheauxiliarycircuitcompartment.Dependingonthedeliverytimes,therearetwodifferentproceduresforsupplyingtheconnectioncablesoftheunits:• Cablesnotincluded• Cablessuppliedrolledinabundleintheauxiliary

circuitcompartment.Table8givesthecorrecttorquesfortheterminalblocks.

Terminal Blocks

Width of terminal box (mm)

Cross-Section of cable (mm2)

Tightening Torque (Nm)

5 0,2-2,5 0,4-0,6

6 0,2-4 0,5-0,8

8 0,5-6 0,8-1

Table 8. Terminal Blocks

Theoptionsavailableforcontrolcableentryare:• Sideductatbothendsoftheswitchgear.• Aductcanalsobeplacedontheroofofthe

switchgeartosupporttheincomingcables,forexample,fromanoverheadcableladder.


NOTE Tightening must be carried out with the correct torque

4.3.2 Main earthing circuit connections between the panels of the SBR functional unit

a)InstalltheprotectionbusbarconductorbetweenpanelsoftheSBRfunctionalunit.

b)ConnecttheL-shapedprotectionconductorbetweentheSBRunitandotherpanels.

4.3.3 Connection of the main earthing circuit for WBC – WBS units

a) Installtheearthingbusbarbetweentheunitsandconnectittothemainearthingcircuit.

4.4 Final installation workCheckpoints• Checkthepaintedpartsoftheswitchgearforany

damage,touchingupwhererequired.• Checktheboltconnectionsandtightenwhere

required(especiallythosemadeduringon-siteinstallationofthebusbarsandearthingsystem.

• Cleantheswitchgearthoroughly.• Removeallforeignobjectsfromtheunits.• Correctlyreplaceallcoverings,etc.removed

duringtheinstallationandconnectionoperations.

• Anyremainingopeningsintheswitchgearhousingmustbeclosediftheyarenolongerneeded.

• Checkthattheisolatingcontactsandinterlockingmechanismsoperatecorrectlyand,ifnecessary,greasethemagainwithIsoflexTopasNCA52.

• Insertanywithdrawablecircuit-breakerpartsandconnectthemtothecontrolcabling.

• Closetheunitdoorsproperly.

c)Earthingbusbarinstalled.

d)Theearthingcablescanbemountedwithbolts,asshowninFigure118.TheM12bolt,markedwiththeearthingsymbol,isreservedfortheexternalstationearthingsystem,theotherM10bolts(3pieces)forthecablesheathsorotherearthingsystems.

e)ConnecttheearthingcablestothemainearthingbusbaroftheSBRfunctionalunit.

Figure 117. Earthing busbar installed

Figure120.SBRunitprotectionbusbarconductor

Figure 118. Positions of the earthing cables

Figure 119. Main protection earthing busbar of the SBR unit



— A.Tighteningtorquesforsteelscrewsandnuts/bolts

—

Nuts and bolts Max. tightening torque [Nm]

Type Steel class 8.8

M4 3

M5 5

M6 9

M8 22

M10 45

M12 75

M16 185

—Cheese-head socket screws

Max. tightening torque [Nm]


M4 2

M5 4

M6 8

M8 12

M10 35

M12 50

M16 110

—Socket-head screws and round-headed Torx


Type Steel class 8.8 Steel class 10.9

M4 2 2

M5 4 4

M6 8 8

M8 12 12

M10 30

M12 60

—Hexagonal-head bolts with flange


Type Steel class 90

M5 9

M6 16

M8 34

M10 58

M12 97

M16 215

—Cheese-head Torx Fastite screw



M6 20

Thevaluesinthetablesmustbeusedunlessthetorqueisspecifiedinthetableofjointtypes.


—

Bolts mounted on the CT, TPU typeJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min. 2.8 16 56

nominal

max. 3.5 20 70

—Bolts mounted on electrical pliersJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min. 8

nominal 9

max. 10

—Cable connection nutJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min. 18 35 65 170

nominal 20 40 70 180

max. 22 45 75 190

—Busbar connectionsJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min. 18 35 65 170

nominal 20 40 70 180

max. 22 45 75 190



—

Bolts mounted on the circuit-breakerJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min.

nominal 30 40

max.

—Bolts mounted on the mandolin CTJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min.

nominal 35

max.

—Bolts mounted on the post insulatorJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min. 25

nominal 8 20 30

max. 31

—Bolts mounted on the connection and switching busbarJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min. 56

nominal 35 60

max. 70


—

Bolts for mounting CTJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min.

nominal 40

max.

—GSec and busbarJoint type Tightening torque [Nm]

M5 M6 M8 M10 M12 M16

min.

nominal 35

max.



— B.Toolsrequiredforinstallation

Torx wrench• TX30Torxwrench

Allen wrenches• 5mm• 6mm• 8mm

Socket wrenches• 10mm• 15mm• 17mm• 19mm

Ring spanner• 13mm

—For more information please contact:

—More product information: abb.com/mediumvoltageYour contact center: abb.com/contactcenters More service information:abb.com/service

© Copyright 2018 ABB. All rights reserved. The data and illustrations are not binding. We reserve the right to make changes in the course of technical development of the product. 1V

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DISTRIBUTION SOLUTIONS UniSec Installation manual · DISTRIBUTION SOLUTIONS UniSec Installation...

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