instructions for use SM6 - Schneider Electric

GBC A2 cubicle1 : low voltage connectioncompartment2 : front panelA : top busbar connection pads(located behind the partition)B :current step-down transformersC :connection busbarsD :bottom busbar connection padsE :phase-to-earthvoltagestep-down transformersNote: the cubicle shown oppositeis equipped for top right connection.For a cubicle with top left connection,the internal layout and mimic diagramare inverted.ABC1DE2GBC A3 cubicle1 : low voltage connectioncompartment2 : front panelA : top busbar connection pads(located behind the partition)B :current step-down transformersC :connection busbarsD :protected phase-to-earthvoltage step-down transformersE : bottom busbar connection padsNote: the cubicle shown oppositeis equipped for top right connection.For a cubicle with top left connection,the internal layout and mimic diagramare inverted.ABCD1E26 7896779EN revision : 01

GBC B3 cubicle1 : low voltage connectioncompartment2 : front panelA : busbar connection padsB :connection busbarsC :current step-down transformersD :phase-to-earth voltagestep-down transformersAB1CD28 7896779EN revision : 01

handling instructionscubicle identificationGBMA : manufacturer’s name plate.B2B2serial number :B1: riveted to the front plate of thetop compartment.B2: glued to the upright of the frame.B1B3B1GBCA : manufacturer’s name plate.serial number :B1: riveted to the front plate of thetop compartment.B2: glued to the upright of the frame.B3: glued behind the front plate ofthe left-hand top compartment.AAaccessories listaccessories providedwith the cubicleswitchboard accessories :(may vary dependingon the cubicles making upthe switchboard)1operatinglever2 end panels1 bag of nuts and boltsfor the end panelsS4 : 37297441 wall clearance angle---ironcubicle accessories :2 bags of field distributorsfor busbars > 12 kVS2 : 3729742or 2 bags of fastening accessoriesfor busbars ± 12 kVS6 : 37297461setofbusbars1earthbar1 bag of intercubicle connectionaccessoriesS1 : 3729745additional accessories providedwith GBC A3 and GBC B3cubicles :1 set of 3 special voltagestep-down transformer fuses(for fuse replacementon GBC A3 and GBC B3cubicles only)3lowvoltagewires3 special nuts1 bag of nuts and boltsweightGBM : 120 KgGBC : 270 Kg7896779EN revision : 01 9

dimensionsGBM4716001630375870GBC16001690750809401020handling using slingsLL60MAXI60MAXIGBML = 920 mm mini.GBCL = 1130 mm mini.10 7896779EN revision : 01

handling using a forklift7896779EN revision : 01 11

storage70˚ C--- 40˚ C12 7896779EN revision : 01

installation and operationrecommendationswitchgear ageingwithstandinanMVsubstation depends on 3main factorsH The need for properimplementation of connections:the new cold slip --- on andretractable technologies offer easeof installation, thereby promotingwithstand over time.Their design enables operation inpolluted environments with harshatmospheres.H Theinfluenceoftherelativehumidity factor:installation of heating resistors isessential in climates with highrelative humidity and largetemperature differences.H Ventilation control:the grids must be sized accordingto power loss in the substation.These grids must only be placednear the transformer, so as toprevent air circulating on the MVswitchboard.operationWe strongly recommend that youcarry out at regular intervals (atleast roughly every 2 years) afewoperating cycles on theswitching devices.Outside normal operatingconditions (between --5°C and40°C, absence of dust, corrosivegas, etc.), we recommend that youcontact our Groupe SchneiderElectric service centre in order toexamine the measures to be takento ensure proper installationoperation.Our service centre is at yourdisposal at all times:H To conduct an installationdiagnosis.H To suggest the appropriatemaintenance operations.H To offer you maintenancecontracts.H To suggest adaptations.7896779EN revision : 01 13

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installation instructionspreparing the cubiclesfor switchboardassemblyGBM:bolt+washer: bolt + washer + nylstop nutA1BA2Remove the upper panel A1and A2 to acess the locking anglebracket.Remove the lifting ring B.CDSwivel the angle bracket 90˚ tothe leftRemove the front panel C and thenthe pallet D.(the bolts cannot be re---used).EFRemove top plate E. (4bolts)Remove top plate F. (6bolts)7896779EN revision : 01 15

GBCBA1A2Remove the upper panel A1 andA2 to acess the locking anglebracket.Remove the lifting ring B.DCSwivel the angle bracket 90˚ tothe leftRemove the front panel C and thenthe pallet D.(the bolts cannot be re---used).EFRemove top plate E. (8bolts)Remove top plate F. (12bolts)16 7896779EN revision : 01

assemblingthe switchboardchecks before switchboardassembly:Check that the partitions havebeen correctly installed inaccordance with the switchboardconfiguration.(for GBM and GBC A cubicle only).Top right connection.Top left connection.Sachet of screw fastenersS1 : 3729745(HM6 x 16 bolts only)MKL: bolt + washers + nuttop viewKLFasten the cubicles together.(the additional screw fasteners arefor fitting the earth collector)Nut and bolt orientation.K : left---hand cubicle.L : right---hand cubicle.M : to join the 2 cubicles.Screw HM6x60 to tighten moderatelyTightening torque : 6 Nm.securing to the floor(nuts and bolts not included)84050 7405012,3x12,384050 7405012,3x12,315 345 1537515 720 15750GBMGBC7896779EN revision : 01 17

100mm*20mmGBMGBM20mmGBMSwitchboardinstalledtotherightof a wall.(*) minimum clearance fortrouble---free operation.20mmSwitchboard installed to the left ofa wall.100mm*20mmGBCGBC20mmGBCSwitchboardinstalledtotherightof a wall.(*) minimum clearance fortrouble---free operation.20mmSwitchboard installed to the left ofa wall.fitting the busbars afterinstalling the cubiclesin their operating locationaccessories bag :S2: 3729742 or S6: 3729742.tools:1 torquewrench(1to50Nm.)1 1/4---3/8 adapter1 6 mm extension fitting1 6 mm male hexagonal (Allan)fitting or1 emale hexagonal socket(depending on the busbars)GBMTop busbar connections.Tightening torque : 28 Nm.Bottom busbar connections.Tightening torque : 28 Nm.18 7896779EN revision : 01

Version ±12 KVbag S6 : 3729746.Mouted without field ditributors.Version >12 KVbag S2 : 3729742.Field distributor positioned correctly.Field distributor positionedincorrectly (risk of damage).7896779EN revision : 01 19

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fitting fuses in aprotected phaseto-earth voltagestep-down transformer(for GBC A3 and GBC B3cubicles only)Remove the plugs protecting thefuse chambers.Connect a wire to each of thecurrent transformersExample : connect on the topConnect a wire to each of thecurrent transformersExample : connect on the downScrew the fuse into the fusechamber.Connect the wire coming from thecurrent step-down transformer.Fit the special nut and tighten itmoderately by hand .7896779EN revision : 01 21

eassemblinga GBM cubicleUse the nuts and bolts previouslyremoved, taking care to fit them intheir original locations.EFA1A2CRefit top plate F and then topplate E.Caution: Make sure that nothinghas been inadvertently left in thebusbar compartment.Refit the front panel C and thenSwivel the angle bracket 90˚to the right.thefrontplateofthetopcompartment A2 and A1.reassemblinga GBC cubicleEFRefit top plate F and then topplate E.Use the nuts and bolts previouslyremoved, taking care to fit them intheir original locations.A1A2CCaution: Make sure that nothinghas been inadvertently left in thebusbar compartment.Refit the front panel C and thenSwivel the angle bracket 90˚to the right.thefrontplateofthetopcompartment A2 and A1.22 7896779EN revision : 01

low voltage connections(for GBC cubicles only)ACable entry to the auxiliary terminalblock is via holes A on topo.Make the connections to the terminalblock according to the low voltagediagram of your installation.Close the low voltage compartment.fitting the earth barsNut bag S1 : 3729745Connect the earth bars together.(HM8 x 30 mm bolts)For the GBM:bar length 375 mm.(between hole centres)For the GBC:bar length 750 mm.(between hole centres)Connection to substation earth ineither of these two ways.7896779EN revision : 01 23

standard wiringdiagramfor current transformersT1P1L1 L2 L32S1XB4BT56HT2S21E1P1T2HT2S12S27Note : wiring to cancelafter connectionprotection1E1P1T3HT2S12S281E1XB4BT11S12T1HTP21S21E1T2HTP211S11S23Note : wiring to cancelafter connectionmeasureE1T3HTP21E1L1 L2 L3GBC/A---rightorleftstart1S11S24Note : wiring for apparatus with T&Umeasurement (kWh, kWARh, directionnal relay)check the current sense for CT’SIf P2 P1 sense, reverse the incoming---outgoingcurrent sense on the apparatus terminals24 7896779EN revision : 01

standard wiringdiagramL1L2L3for voltage transformersP1P2 P1 P2 P1 P2T8 T9 T10HTHTHT1S11S22S12S21S11S22S12S21S11S22S12S2FU2FU2FU2FU2FU3FU3FU3FU3N1135N1135BTN2246N2246XB11BT11 12 13 14 21 22 23 247896779EN revision : 01 25

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maintenance instructionspreventivemaintenance, cleaninginstructions andpower --- upIf necessary: contact theSchneider Electric group servicecentre.We strongly recommend that youcarry out at regular intervals (atleast roughly every 2 years) afewoperating cycles on theswitching devices.CAUTIONNever lubricate the disconnectoroperating mechanism.If necessary: contact theSchneider Electric group servicecentre. In normal operatingconditions (temperature between--- 5°C and40° C) no specialmaintenance is required.CAUTIONNever use solvents and alcohol.We recommend that you inspecteach compartment (cable, fuse,busbar)* at regular intervalsaccording to environmentalconditions.If the insulating parts are dusty,that you remove the dust using adry cloth.example :In harsher conditions(aggressive atmosphere, dust,temperature less than --- 5° Cor greater than 40° C) consultthe nearest Schneider Electricservice centre.7896779EN revision : 01 27

corrective maintenancereplacing a fuse(for GBC A3 andGBC B3 cubicles only)CAUTIONbefore beginning the fusereplacement procedure, theentire MV switchboard mustalways be de--energized.Tools required:1 10 mm wrench.1 voltage testing rod.Note:Standard IEC 282.1 § 23.2states that all three of the MVfuses should be changedwhenever one of them blows.A1A2L1L2L3CRemove the top compartementfront plate A1 and A2 and the frontpanel C.Before approaching any partsinside of the cubicle, use thevoltagetestingrodoneachofthephases to check that they havebeen de-energized.Unscrew the special nut and thefuse that is to be changed.Screw the new fuse into the fusechamber.28 7896779EN revision : 01

A1A2CConnect the wire coming from thecurrent step-down transformer.Fit the special nut and tighten itmoderately by hand .CAUTIONMake sure that nothing has beeninadvertently left in the busbarcompartment.Refit the front panel C and then thefront plate of the top compartmentA2 and A1.spare parts H Special fuses for RTF 300 andVRM3n step---down transformers.(for cubiclesGBC A3and GBC B3 only)H Forallotherreplacements,please consult us: see groupeSchneider Electric servicescenters.7896779EN revision : 01 29

ecovery of SF6 gasat end of lifefor disconnector cubicleThe SF6 must be removedbefore any dismantlingoperation can be carried out incompliance with the proceduresdescribed in IEC--61634 andaccording to the followinginstructions.The gas must be treated incompliance with IEC--60480.H volume of gas to berecovered: 35 litresH internal gauge pressure:40 kPANB : SF6 gas recycling at theend of circuit--breaker life, referto its instruction for use.Remove the cover (A) from thecontrol cabinet.control cover accessBRemove the control cover (B).Remove the 3 screws retaining theoperating mechanism.Cut the wiring to removethe operating mechanism.Drill 2 holes in the filler valvesafety cap∅ 4 mm, centreline 20 mm,max. depth 4 mm30 7896779EN revision : 01

CAUTIONpump the gas for at least 15minutes.CUsing a spanner wrench, removethe safety cap from the valve.Connect the special pumpingequipment (C).7896779EN revision : 01 31

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group Schneider Electric servicecenters are there for:engineering and technicalassistancestart-uptrainingpreventive and correctivemaintenanceadaptation workspare partsCall your sales representativewho will put you in touch withyour nearest group SchneiderElectric service centers.Schneider Electric Industries SAS89, boulevard Franklin RooseveltF---92500 Rueil---Malmaison (France)Tel:+33(0)141298500http://www.schneider---electric.com7896779EN revision : 01As standards, specifications and designs change from timeto time, please ask for confirmation of the information givenin this publication.Conception, rédaction: Service DocumentationTechnique T&DEdition du : 24/04/2008