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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