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Medium Voltage Switchgear and SwitchesMV Switchgear up to 24 kV, 1250 ASF6-Insulated, Modular Design

BO-GAE1250/1

• Maintenance-freeconceptwithSF6-pressurisedcontainersasahermeticallysealedpressuresystem

• Minimumspacerequirement

• Highleveloffunctionalreliability

• Greatoperatorsafety

• Uptofour-foldcableconnectionsystemsincircuit-breakersections

• Metal-encapsulatedplug-involtagetransformercanberetrofittedoptionallyonthebusbarsideorontheoutgoingsideoncircuit-breakersections

• ConventionalcurrenttransformerscanbeeasilyexchangedtogetheroutsideoftheSF6-pressurisedcontainer

General Information/DescriptionBenefits of SF6-insulated, metal-encapsulated, modular switchgear assemblies

• Largelyclimateresistant• Maintenance-free conceptwith SF6-pressurised containers as a

hermeticallysealedpressuresystem• Minimumspacerequirement• Comprehensivepersonnelprotection• Highleveloffunctionalreliability• Greatreliabilityofsupply• Greatoperatorsafety• Greatversatilityduetoavailabilityofcircuit-breaker,isolatorand

load-breakswitchsections• Straightforwardside-by-sidefittingofsectionsbymeansofinner

coneplug-insystemsforthebusbarconnection• Uptofour-foldcableconnectionsystemsincircuit-breakersections• Metal-encapsulatedplug-involtagetransformercanberetrofitted

– Optionally on the busbar side or on the outgoing side oncircuit-breakersections

– Optionallyonthebusbarsideatriserpanels– Optionallywithisolating/earthingswitch

• Conventional current transformers can be easily exchangedtogetheroutsideoftheSF6-pressurisedcontainer

Features

The switchgear assemblies are type-tested, factory-built, metal-encapsulated SF6-insulated switchgear installations made up ofsections.

Applications

Suitableforuseinsubstationsandswitchingstations,andalsoasloadcenters:

• In electricity supply company networks, substations, maindistribution substations, combined heating & power stations,cavernsystems,etc.

• Inindustrialnetworkswithmedium-voltagenetworkinfrastructure– Primary-levelmaindistributionboard/incomers/feeders,– Powerstations(ownproduction,combinalpowerstation),– Nodedistributionboards,

• In buildings with medium-voltage network infrastructure, e.g.in railway stations, department stores, hospitals, barracks, lawcourts,administrativebuildings,etc.– Primary-levelmaindistributionboard/incomers/feeders,– Powerstations(ownproduction/stand-bypowersupply),

• In environmental projects with medium-voltage networkinfrastructure, e.g. in wind energy, biogas, sludge digestion,resource-recycling/-recoveryplant,etc.– Primary-levelmaindistributionboards,– Combinedheating&powerstations.

Voltage transformer

Plug-in, metal-encapsulated, single-pole voltage transformers to IEC60044-2andVDE0414Part2areoptionallyflangeddirectlyabovethegas tank to the bus-sectionalizer panelswith vacuum circuit-breaker-1LSV(G)-/6/, the riser sections -1HT-/6/and thecable riser sections-1AT-/6/.

Theyareoptionallyswitchedasbusbarvoltagetransformersoroutgoervoltagetransformers.

AnupstreamisolatingorearthingswitchinSF6isoptionallyavailable(with outgoing voltage transformers it is standard). This isolating orearthingswitchisoperatedviaadrivefeaturethatislocatedbehindtheinterlockedfrontcoverofthecableterminationarea.Thedrivefeaturemustbeequippedwithapadlock.

Thevoltagetransformerscanbeoptionallysuppliedwithcertifiableorcalibratedmeasuringcore.

Front view

Front view with open front cover

Current transformer

Inoutgoingpanelsandbussectionalizerpanelswithcircuitbreakersand thosewith load-break switches, low-voltage ringandspectacle-corecurrenttransformerstoIEC600441-1andVDE0414Part1arelaidaroundtheextendedexternalconebushings.

Theprotectiveandoptionalmeasuringcoresaretogetherbuilt intoatransformerblock.

Thevoltagetransformerscanbeoptionallysuppliedwithcertifiableorcalibratedmeasuringcore.

The current transformers can be fitted or exchanged easily withoutinterventioninthegastank.

In addition, it is possible to use split-core current transformers laidaroundtheearthedcablescreensofthesingle-corecablesinthecableconnectioncompartmentorthecableduct.

Technical DataSwitchgear panels (rated values)

Rated voltage Ur7.2 kV 12 kV 17.5 kV 24 kV1)

Rated insulation level Rated power-frequency withstand voltage, AC Ud kV 20 28 38 50 Rated lightning impulse withstand voltage Up kV 60 75 95 125Rated frequency fr Hz 50/60 50/60 50/60 50/60Rated normal current Ir For busbars A 1 250 1 250 1 250 1 250

Rated short-time current Ik at tk = 3sUp tokA 20 20 16 16

Rated peak withstand current IpUp tokA 50 50 40 40

Rated short-circuit making current ImaUp tokA 50 50 40 40

Ambient temperture T °C -5 to +402), 3)

With reduced current ratings °C Above +40Relative humidity % Maximally 95Rated filling pressure of insulating gas at 20°C and 101.3 kPa kPa 130 (30 kPa overpressure)/LSF panel 150 (50 kPa overpressure)Insulating gas SF6Rated density of insulating gas kg/m3 7.9Encapsulation of the HV compartment IP Hermetically welded tank, IP65

Encapsulation of fuse compartment IP Single-pole arcing-free encapsulation and 3-phase metal encapsulation, IP44Encapsulation of the drive housing, relay cabinet IP IP44/IP3XD

Enclosure of the cable connection compartment IP IP44

Internal arc test compliant with VDE 0671, Part 200, Appendix AA and resp. IEC 62271-200

kA IAC AFL 20 kA, 1 s for HV compartmentskA IAC AFL 20 kA, 1 s for terminal compartments

Colour of panel paint finish RAL 7 035 (light grey)Loss of service continuity category LSC 2APartition class PM1) Higher rated voltage (25kV) on request

2) Operation at lower temperatures on request

3) Depending to secondary technic

StandardsThe switchgear installation complies with the following standards and regulations:

IEC 60265-1 (62271-103*)/ VDE 0670 Part 301 IEC 62271-105 / VDE 0671 Part 105(VDE 0671 Part 103*) IEC 62271-200 (60298**) / VDE 0671 Part 200

IEC 60282-1 / VDE 0670 Part 4 (VDE 0670 Part 6**)

IEC 62271-1 (IEC 60694**)/ VDE 0670 Part 1000(VDE 0671 Teil 1*) * = future

IEC 62271-100 / VDE 0671 Part 100 ** = up to now

IEC 62271-102 / VDE 0671 Part 102

RangeOutgoing feeder panel with vacuum circuit-breakerType -1LSV-/6/

Standard equipment• Vacuum circuit-breaker with stored energy operated– ON

andOFF–:– Auxiliarycontacts:10NOand10NC,– Trippingdevice–ON,OFF–DCorAC,– Signallingcontactfor“Startingsectionscharged“,– Mechanicalcounter,

• SF6three-positionisolatingandearthingswitch:

– Interlockedwithcircuit-breaker,– Manualoperation,– Earthingswitchwithspringoperated–ONandOFF–,

• 3-poleSF6-insulatedbusbarintheSF6compartment,

• OnbothsidesoftheSF6-gastank:innerconeplug-insystemsforexternalbusbarconnection,

• Capacitive voltage indication ledges in relay cabinet frontcover,

• Gasleakageindication• Pressurereliefintheeventofarcingdirectedintothecable

well,panelflooropen,• Lockableoperators,• Arc-faultresistantcableterminationcompartments,• Single set of cable connection bushings for maximally

doublecableconnectionviaexternalconeplugXLPE2x1x500mm2:– Oneconnectionplugreplaceableforsurgearrester,

• Relay-andcontrolcompartmentheight600mm.

Outgoing panel with vacuum circuit-breakerType -1LSVG-/6/

Standard equipment• Vacuumcircuit-breakerwithstoredenergyoperated–ON

andOFF–:– Auxiliarycontacts:10NOand10NC,– Trippingdevice–ON,OFF–DCorAC,– Signallingcontactfor“Startingsectionscharged“,– Mechanicalcounter,

• SF6three-positionisolatingandearthingswitch:

– Interlockedwithcircuit-breaker,– Manualoperation,– Earthingswitchwithspringoperated–ONandOFF–,

• 3-poleSF6-insulatedbusbarintheSF6compartment,• OnonesideoftheSF6-gastank:innerconeplug-insystems

forexternalbusbarconnection,• Silicone insulated, controlled, externalbusbar to the riser

panel-1HT-/6/,• Capacitivevoltage indication ledges in relaycabinet front

cover,• Gasleakageindication,• Pressurereliefintheeventofarcingdirectedintothecable

well,panelflooropen,• Lockableoperators,• Arc-faultresistantcableterminationcompartments,• Relay-andcontrolcompartmentheight600mm.

Plug-involtagetransformersPlug-involtagetransformerswithisolating-andearthingfeatureCurrenttransformerCapacitivevoltageindicationledge

Plug-involtagetransformersPlug-involtagetransformerswithisolating-andearthingfeatureCurrenttransformerMaximallydoublecableconnectionMaximallyfourfoldcableconnectionwithdoublesetofbushingsSurgearrester

2000

(230

0)

385 5

75

1400

600

(900

)

405

575757570315 7600

417 185770 2530

630A1250A

1250A

2000

(230

0)

1400

600

(900

)

405

600 770 2530

Busbar riser panel with isolating switchType -1HT-/6/

Standard equipment• SF

6three-positionisolatingandearthingswitch:

– Interlocked– Handle– Earthingswitchwithspringoperated–ONandOFF–

• 3-poleSF6-insulatedbusbarintheSF6compartment• On one side of the SF6-gas tank: inner cone plug-in

systemsforexternalbusbarconnection• Silicone insulated, controlled, external busbar to the

bussectionalizerpanel-1LSVG-/6/• Gasleakageindication• Pressure relief in the event of arcing directed into the

cablewell,panelflooropen• Lockableoperators• Arc-faultresistantterminalcompartments• Relay-andcontrolcompartmentheight600mm• Intermediate frame B = 50 mm to the bus-sectionalizer

panel.

Cable riser panel with isolating switchType -1AT-/6/

Standard equipment• SF

6three-positionisolatingandearthingswitch:

– Interlocked– Handle– Earthingswitchwithspringoperated–ONandOFF–

• 3-poleSF6-insulatedbusbarintheSF6compartment

• On both sides of the SF6-gas tank: inner cone plug-insystemsforexternalbusbarconnection

• Gasleakageindication• Pressure relief in the event of arcing directed into the

cablewell,panelflooropen,• Lockableoperators• Arc-faultresistantterminalcompartments• Single set of cable connection bushings for maximally

doublecableconnectionviaexternalconeplugXLPE2x1x500mm2,(Oneconnectionplugreplaceableforsurgearrester)

• Relay-andcontrolcompartmentheight600mm• Intermediate frame B = 50 mm to the bus-sectionalizer

panel.

1250A

Plug-involtagetransformersPlug-involtagetransformerswithisolating-andearthingfeatureCurrenttransformerCapacitivevoltageindicationledge

630A1250A

Plug-involtagetransformersPlug-involtagetransformerswithisolating-andearthingfeatureMaximallydoublecableconnectionMaximallyfourfoldcableconenctionwithdoublesetofbushings

2000

(230

0)

1400

600

(900

)

405

650 770 2530

2000

(230

0)

385 57

5

1400

600

(900

)

405

417 185770 2530

575757570815 7650

2000

(230

0)

500

690

1035

210

600

(900

)

357

15 150250

600

540730 25

630A

CurrenttransformerMaximallydoublecableconnectionSurgearrester

MaximallydoublecableconnectionSurgearrester

Outgoing feeder panel with SF6 circuit-breaker based on arc quenching coil Type -1LSF-/6/

Standard equipment• SF6three-positioncircuit-breakerandearthingswitch:

– Includinginterlock,– Handle,– Circuit-breakerwithspringoperated–ON,andstoredenergyoperated–OFF,

– Earthingswitchwithspringoperated–ONandOFF–,• ManualEmergency-Stoppush-button,• 3-poleSF6insulatedbusbarintheSF6compartment,• OnbothsidesoftheSF6gastank:innerconeplug-insystems

forexternalbusbarconnections,• Capacitivevoltageindicationledges,• Gasleakageindication,• Pressurereliefintheeventofarcingdirectedintothecable

well,panelflooropen,• Lockableoperators,• Arc-faultresistantcableterminationcompartments,• Single set of cable connection bushings for maximally

double cable connection via external cone plug XLPE 2 x1 x 500mm2, (One connection plug replaceable for surgearrester),

• Relay-andcontrolcompartment,height600mm.

Cable panel with load-break switch and vertically arranged bushings Type -1K-/4/

Standard equipment• SF6three-positionload-breakandearthingswitch:

– Includinginterlock,– Manualoperation,– Load-breakandearthingswitcheswithspring-operated–ONandOFF–,

• 3-poleSF6-insulatedbusbarintheSF6compartment,• On both sides of the SF6-gas tank: inner cone plug-in

systemsforexternalbusbarconnection,• Capacitivevoltageindicationledges,• Gasleakageindication• Pressurereliefintheeventofarcingdirectedintothecable

well,panelflooropen,• Lockableoperators,• Arc-faultresistantcableterminationcompartments,• Single set of cable connection bushings for maximally

double cable connection via external cone plug XLPE 2 x1 x 500mm2, (One connection plug replaceable for surgearrester),

• Relay-andcontrolcompartmentheight600mm.

2000

(230

0)

500

690

185

185

210

600

(900

)

357

8686200

400470

665 2535

87

887 887

021021

630A

MaximallydoublecableconnectionSurgearrester

Cable panel with load-break switch and horizontally arranged bushings Type -1K-/6/

Standard equipment• SF6three-positionload-breakandearthingswitch:

– Includinginterlock,– Handle,– Load-break and earthing switches with spring-operated–ONandOFF–,

– 3-poleSF6-insulatedbusbarintheSF6compartment,• On both sides of the SF6 gas tank: inner cone plug-in

systemsforexternalbusbarconnection,• Capacitivevoltageindicationledges,• Gasleakageindication• Pressure relief in the event of arcing directed into the

cablewell,panelflooropen,• Lockableoperators,• Arc-faultresistantcableterminationcompartments,• Single set of cable connection bushings for maximally

doublecableconnectionviaexternalconeplugXLPE2x1x500mm2,(Oneconnectionplugreplaceableforsurgearrester),

• Relay-andcontrolcompartmentheight600mm.

Transformer feeder panel with fused load-break switch Type -1TS-/4/

Standard equipment• SF6three-positionload-breakandearthingswitch:

– Includinginterlock,– Manualoperation,– Load-break switch with spring operated – ON, andstoredenergyoperated–OFF,

– Earthingswitchwithspringoperated–ONandOFF–,• Indicationoftrippedfuse,• 3-poleSF6-insulatedbusbarintheSF6compartment,• On both sides of the SF6-gas tank: inner cone plug-in

systemsforexternalbusbarconnection,• 3-phaseplug-onfusearrangement,• EarthingswitchinSF6downstreamoftheHRCfuse,• 3-pole slip-on type cable termination for transformer

cables,maximallyXLPE1x240mm2,• Capacitive voltage indication ledges upstream and

downstreamofthefuse,• Gasleakageindication,• Pressurereliefintheeventofarcingdirectedintothecable

well,panelflooropen,• Lockableoperators,• Arc-faultresistantterminalcompartment,• Relay-andcontrolcompartment,height600mm.

630A

2000

(230

0)

500

690

537

570

210

600

(900

)

357

200400

480665 2535

126 126

500

690

1035

210

600

(900

)

357

47066535

2000

(230

0)

150 150300

60025

Busbar earthing panel with earthing switchType -1E-/4/

Standard equipment• SF6-insulated3-poleearthingswitchforbusbarearthing:

– Earthingfunctionasthree-positionswitch,– Manualoperation,– Springoperated–ONandOFF–,

• 3-poleSF6-insulatedbusbarintheSF6compartment,• OnbothsidesoftheSF6-gastank:innerconeplug-insystemsfor

externalbusbarconnection,• Earthed short-circuit bridge via vertical, frontal external cone

bushingarrangement,• Gasleakageindication,• Pressurereliefintheeventofarcingdirectedintothecablewell,

panelflooropen,• Lockableoperators,• Arc-faultresistantterminalcompartments,• Relay-andcontrolcompartment,height600mm.

Metering panel with busbar riserType -1M1-/12,5/

Standard equipment• 3-polebusbarforbus-sectionalizercircuit-breakerpanel-1LSVG-,• Ononesideofthemeteringpanel:innerconeplug-insystemsfor

externalbusbarconnections,• Compact insulators - current- and/or voltage transformers, DIN

42660part8resp.9,IEC600441,• Arc-faultresistantterminalcompartments,• Relay-andcontrolcompartment,height600mm.

2000

(230

0)

500

400 665 2535

690

210

600

(900

)

357

VoltagetransformerCurrenttransformer

3 6 0

7 7 0 2 51 0 5 0 2 0 0

20

00

(

23

00

)

14

006

00

(

90

0)

011011

49

5

Type -1K-

Type -1TS-

Type -1LSV-

Front panel

Frontpanelwith:• Mimicdiagram• Switchpositionindication• Operatorsurfacefortheactuators• Capacitivevoltageindicators• Gasleakageindication• Short-circuitindicators• Padlockingfacility• Drivesealedagainstdust,sandandinsects• HousingIP44

Gas leakage indication

Each gas tank has a pressure display for verification of the SFoverpressurewithin,allowingitsfunctionalsafetytobeinspected.

Pressure switch/ Density monitor

Each gas tank can be fitted with a pressure switch and/or densitymonitorforremotemonitoring(auxiliarycontact).Thelowerswitchingpoint corresponds to the crossoverpoint to the redmeasuring rangeon thegas leakage indication.Thedensitymonitorcanbeoptionallyequippedwithalarmandtrippingindicatorauxiliarycontacts.

Phase sequence indication

Meaning of the indication:Green = operating pressure OKRed = operating pressure not OK.

Voltage display and Testing

Each system is equippedwith the necessary three-phase capacitivevoltagedetectionsystem,TypeKSO,forvoltagetestingtoVDE0682Part415andIEC61243-5withHRsystem(othersystemsonrequest).Thisenablestheabsenceofvoltageinindividualphasestobeverifiedby inserting thevoltage indicationplugs into thecorrespondingpairsof sockets. The voltage detection system circuitry is designed forrated operational voltages of 10, 15 and 20 kV.TheminimumandmaximumvaluesoftheStandardforthesevoltagerangesareadheredtointhestandardsystem.Itisnotnecessarythereforetoadjustthemagainwhenchangingtheratedoperationalvoltagewithinthisrange.Ratedoperationalvoltage6kVcanbeimplementedinaspecialversion.Thelivecontactsocketsaretouch-protected.

Voltage detection system in sealed version

Voltage indication plug

(Picture shows Horstmann device)

The following devices may be used:

Pfisterer Type DSA-2

Horstmann Type HMO-ST-1

Indication devices are also suitable for continuous duty.

Single-line diagram of a voltage indicator

Phase Sequence Indication by Interface Tester

(Picture shows Horstmann device, Type ORION 3.0)

Make Phase sequence indication

Interface tester

Horstmann - H-OM measuring module with Fluke

ammeter Type 87 or matrix Type Mx55 (II

to IV)

Horstmann Type: Orion Type: Orion

Pfisterer Type: EPV Type: Euro test-HO

Voltageindicationviacapacitivevoltagedivider,HRsystem.

Voltageindicationpluggedin.

C1Capacitorintegratedinthebushings.

C2Capacitanceoftheconnectingcablesandthevoltageindicationdevicetoearth.

ULE=UN/√3Duringratedoperationinathree-phasesystem.

U2=UA=Voltageatthecapacitiveinterfaceofthesystemoratthevoltageindicationdevice.

T connection fittingsT connection fittings are to be used as the operator thinks fit.Connectable to bushings toDIN EN50181 connection typeC (630A)withexternalconeandboltcontact(M16).Withnon-controlledsystems,themanufacturer’smountinginstructionsaretobeadheredtoimplicitly.

Short-circuit/Earth-fault indicator.

Othertypesandproductsondemand.

Manufacturer TypeHorstmann ALPHAM

Accessories for the system

Operatinglevers,keysforfasteners

Operating lever (optional) for the load-break switchactuatingshaftwithmotoroperator(formanualswitchinge.g.incaseoflossofsupplyvoltage).

Operatingleverfortheearthingswitch(optionalredshaft).

Operating lever for the load-break switch (optional plainshaft).

Charginghandleforvacuumcircuit-breakers

Keyforthefasteneronthefrontcover(controlstheanti-reverseinterlock).

Cable clamps

Size IClampingrange26to55mmforcables,suchas

• 12kV:35mm2 240mm2

• 24kV:25mm2 185mm2

Size IIClampingrange36to52mmforcables,suchas

• 12kV: 300mm2

• 24kV: 240mm2

Theprecisecablediametermustbecomparedwith theclampingrange.

Figure13Operating levers

The following devices may be used:

Allringcablepanelscanbeequippedeitherwitha3-phaseshortcircuitorearth-faultindicator.

ALPHAE

ALPHAautomatic

DELTAM

DELTAE

EKA-3

EKA3/1

GAMMA4.0

Opto

Sigma

Coupling and bolt connection kits

Busbar coupling kit with double gasket

Shown: 1 phase

Busbar end cover with single gasket

Shown: 1 phase

Parts for bolt connection of panels

Shown: 1 set

Arc fault protection, panel installationForstandardpanelversionwithpressurereliefintothecablewellorcableduct.

Pressure relief into the cable well or cable duct

600

100

Forpanelversionforpressurereliefviareartowardsthetop(panelforfloorbulkhead).

Pressure relief via rear absorber channel towards the top

Switchgear related pressure calculations can be enquired as part of services.

ca. 1150 100

Protection technology

All commercially available protection relays can be installed intheswitchgearfor theLSVcircuitbreakerpanelsandLSFcircuitbreakerpanels.

Thevariantsrangefromtransformer-operatedprotectionrelaystocombinedprotectionandcontrolsystems.

Lowenergytrips0.5VAand0.1VAareavailableforthetransformer-operatedrelays.

Inthiscontextspecialrelay-transformercombinationsaretested.

Commonprotocolsand interfaces,e.g.ProfibusDP,Modbus, IEC60870-5-103,IEC60870-5-101andIEC61850canbeprovidedwithrelatedrelays.

Installationisinlow-voltagecompartment/relayniche.

Optionally,theprotectionrelaycanalsobeinstalledintherelatedcover.

It isalsopossible toconfigure theparameters for theprotectionrelayinaccordancewithcustomerrequirements.

Afewcommerciallyavailableprotectionrelaysasexamples:

http://www.ppi.ph/dlfiles/orgae.pdf