BO-CGMCM/3 MV Switchgear Secondary Electrical Distribution · 2.1A/1.1A/0.45A 0.45A/ 0.22A 13 s...
Transcript of BO-CGMCM/3 MV Switchgear Secondary Electrical Distribution · 2.1A/1.1A/0.45A 0.45A/ 0.22A 13 s...
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Fully Gas Insulated Modular and Compact (RMU) System Up to 24 kV
MV Switchgear Secondary Electrical Distribution
•Fullmodularity,connectivityandfutureextendibilityinbothsidesusingtheconnectingset.
• Internalarcswithstandforpersonalprotection,inaccordancewithIEC60298.
•Smalldimensionsandlowweights.
•Simpleandsafeoperation,possibilityofmountingauxiliarycomponentsundervoltage,additionalinterlocks,ergonomicsandfusesinhorizontalpositions.
•Easycableconnections,noneedforatrenchorplacementofadditionalon-siteframes.
BO-CGMCM/3
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Themodular and compact switchgear is composed of a set of reduced sizemodular cubicles, single or multifunctional, for different Medium Voltagesecondarypowerdistributionconfigurationsupto24kVinpublicandindustrialsettings.
Boththebreakingandswitchingcomponentsaswellasthebusbararelocatedinside a stainless steel SF6-filled gas tank which is permanently sealed,thus building a fully insulated unit. This provides protection against harshenvironmentalelements(includingflooding),longservicelifeandmaintenance-freeofliveparts.
Main Features
• Fullmodularity, connectivity and future extendibility in bothsidesusingtheconnectingset.
•Internalarcswithstandforpersonalprotection,inaccordancewithIEC60298.
•Smalldimensionsandlowweights.
•Simple and safe operation, possibility ofmounting auxiliarycomponentsundervoltage,additionalinterlocks,ergonomicsandfusesinhorizontalpositions.
•Easycableconnections,noneedforatrenchorplacementofadditionalon-siteframes.
•Continuouslyvoltagepresenceindication.
•Availabilityofanacousticalarm,whichemitsanaudiblesignalwheneveranattemptofinadequateoperations.
Standards
IEC60298Metal-enclosed switchgear for alternating current ratedvoltagesover1kVandunder52kV.The system has been designed and tested towithstand aninternalarcinaccordancewithAppendixAA.
IEC60265High voltage switches - Part 1 : High voltage switches forratedvoltagesover1kVandunder52kV.
IEC60129Alternatingcurrentdisconnectorsandearthingdisconnectors.
IEC62271-105Alternatingcurrentswitch-fusecombinations.
Connecting Set
Thevariousmodulesareelectricallyconnectedbytheconnectingset,patentedin1991byOrmazabal.
This assembly connects the main busbar of the extendiblecubicles, allowing current to flow while also controlling theelectricfield.
Other important aspects are the capacity to maintain thesamefunctionalcharacteristicsofthecubiclesandtheeaseofinstallation,evenintransformersubstationswithunevenfloors.
Overview
IEC60694Common specifications for high-voltage switchgear andcontrolgearstandards.
IEC62271-100High-voltagealternating-currentcircuit-breakers.
IEC60255Electricalrelays.
Themodular and compact switchgearmeets the immersiontestatapressureof3metreswatercolumn,24hoursatratedvoltageandisolationtestatpowerfrequency.
Note: The IEC standards are currently being updated, and therefore thenomenclaturemayvaryinsomecases.
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Incomingfeederorlinefunctionalunit
Busbarswitchfunctionalunit.
Busbarswitchwithearthingontheright(Ptd)orleft(Pti)ofthebreakingpointfunctionalunit
Fused-protectionfunctionalunit.
Vacuumcircuitbreakerfunctionalunit
Meteringfunctionalunit.
Functionalunitforcablerisingtothebusbarontheright(RCd)orontheleft(RCi).
Functionalunitforbusbarrisingontheright(RBd)oronbothsides(RBa).
Functionalunitforbusbarrisingontheright(RBd-Pt)oronbothsides(RBa-Pt),withearthingdisconnector
Technical Characteristics Fully Gas-Insulated Modular and Compact (RMU) System up to 24kV
L S S-Pt_ P V M RC_ RB_ RB_-Pt 2LP RLP 2L 3LP 2L2P 3L2P
RatedVoltage[kV] 12/24
RatedCurrent[A]
Busbars 400/630
Outgoing 400/630 - - 200 400/630 - - 400/630 400/630 400/630200
400/630200
400/630 400/630200
400/630200
400/630200
Short-timeCurrent(kA)
16/20# 16/20# 16/20# 16/20# 16/20 - - 16/20# 16/20# 16/20# 16/20# 16/20# 16/20# 16/20# 16/20#
Height(mm) 1740* 1740 1740 1740* 1740 1740 1740 1740 1740 1740* 1740 1740* 1740* 1740* 1740*
Width(mm) 365 450 450 470 480 800 365 365 365 1190 1190 730 1565 1670 2035
Depth(mm) 735 735 735 735 850 1025 735 735 735 735 735 735 735 735 735
Weight(kg) 95 105 110 140 218 165 40 95 100 290 290 180 385 430 525
#Testconductedwithacurrentof21kA.*1300mmhighunderrequest.
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Operating MechanismsType Mechanical
enduranceRatedVoltage
Maximumpowerconsumption
Averagemotoroperationtime
Signallingcontacts
ManualwithtripcoilSwitch-disconnector
B/BR M1Class 24Vdc/48Vdc/230Vac/110Vdc
80W/80VA - 1NOC/1NOC+2NO2NO
CircuitBreaker RAV M1Class 24Vdc/48Vdc/110Vdc/125Vdc/230Vac
60W/60VA - 6NO+6NC
MotorSwitch-disconnector
BM M2Class 24Vdc/48Vdc/110Vdc125Vdc/230Vac
5.1A/3.7A/2.1A/2.1A/1.5A
3s Switch2NO+2NC
Earthing2NO
Circuitbreaker RAMV M1Class 24Vdc/48Vdc/110Vdc125Vdc/230Vac
2.1A/1.1A/0.45A0.45A/0.22A
13s Circ.Breaker2NO+2NC
Earthing1NO+1NC
Compactcubiclecomposedoftwofeederandonefused-protectionfunctions(RMUtype)
Groupofmodulesformingoneunitcomposedofthreefeederandonefused-protectionfunctions.
Compactcubiclecomposedofonebusbarriser,onefused-protectionandonefeederfunctions.
Groupofmodulesformingoneunit;composedoftwofeederandtwofused-protectionfunctions.
Compactcubiclecomposedoftwoincomingfeederfunctions.
Groupofmodulesformingoneunit;composedofthreefeederandtwofused-protectionfunctions.
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Interlocks
The system has a series of interlocks to ensure safe, reliableservice, inaccordancewith the requirementsof the IEC60298standard. Based on the design and the inclusion of additionalinterlocks, the switch-disconnector and the earthing switchcannotbeclosedsimultaneously.
AninterlockoperatedbytheearthingswitchpreventstheaccesscovertotheMVcableterminalsfromopening,therebyavoidingunsafeoperations.
In addition, the access to the fuse holders in the protectionfunctionalunitsisalsosecuredwiththesameinterlock.
The cubicles allow switching to be disabled by padlocks (upto three) for both the switch-disconnector and the earthingdisconnector.
Optionally, switching lockingdevicesequippedwitha lockareavailableforanyoftheoperations.
Voltage Presence Indicator
The design is according to IEC 61958 standard, indicates thepresenceofvoltageinthephasesofeachfunction.
Acoustic Alarm
Acousticalarm topreventearthing, isa self-poweredaudibleindicatorthatisactivatedwhenanattemptismadetooperatethe earthing disconnector shaft under power cable voltage,therebyalertingtheoperatorofperformingaswitchingoperationthatmayproduceafaultinthenetwork.
Protection, Metering, Control and Signalling
This family includesaseriesofunits,whichcanbe integratedin the system to provide protection, measuring, control andsignallingfunctionintheMediumVoltagedistributionnetworks.The various units, composed by a set of elements: relays,measuring sensors, power supply cards, toroidal currenttransformers, low energy bistable tripping units, etc, provideadded value to the facilities by extending service life, whilefurtherensuringequipmentandpersonalsafetyandenhancingthequalityofservice:• Protection,measuringandcontrolunit,specificallydevelopedforapplicationtothefuseprotectionfunctionalunit.
• Protection,measuringandcontrolunitdevelopedforapplicationtothecircuitbreakerfunctionalunit.
• Signalling,measuringandintegratedcontrolunit,specificallydevelopedforapplicationtothefeederfunctionalunit.
• Detectionunitforthepresence/absenceofvoltage.• Measuringsensorsandself-powertoroidalcurrenttransformers.
• Powersupplycard.• Bistabletrippingunit.• Integratedsignallingvoltagepresenceindicator.• Phasecomparator.Devicetoindicatephasecoincidencebetweentwocubicles.
• Acousticalarmtopreventearthing.• Programmablecubiclecontroller.• Automaticincomingfeedertransfer.• ComputerapplicationforremotecontrolandautomationoftransformersubstationsfromaSCADAbasedcontrolstation.
Detectionunitforthepresence/absenceofvoltageProgrammable
CubicleController
Acousticalarmtopreventearthing
IntegratedSignalingVoltagePresenceIndicator
ProtectionMeasuringControlforapplicationtothecircuitbreakerfunctionalunit
ProtectionMeasuringControlforapplicationtothefusebreakerfunctionalunit
PhaseComparator
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Substation Automation SystemSolutionpackageforsystemintegration,automationandenergymanagement
Dry-type Cast Resin TransformersGlassFibreReinforcedVacuum
Technology(GVT)upto36kVandcapacityupto30MVA
Surge ArresterDistributionTypeSurgeArresterinpolymerichousedgaplessdesign
upto36kV
Instrument TransformersIndoor/OutdoorCurrentandPotentialTransformersfrom15KVupto69KV
Protection RelayCompleteProtectionSolutionsControlandMeasurement
Solid Insulation SystemDesignsareavailableforapplicationupto69kVandupto7000Aforbothindoorandoutdoorinstallations
Turnkey Substation Designconstructionandenergizationofsubstationupto500MVA
DISTRIBUTIONEQUIPMENT
Medium Voltage SwitchgearsHermeticallysealedandSF6Insulated
CompactSwitchgearVoltageratingupto36kVandcurrent
ratingupto2,500A
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