Spec For Tender For Outdoor Vacuum Circuit Breaker 36kV
Spec For Tender For Outdoor Vacuum Circuit Breaker 36kV
Spec For Tender For Outdoor Vacuum Circuit Breaker 36kV
GeneralSpecificationforOutdoorVacuum
CircuitBreakerupto36kV
This is the common article to use for mainly prescription
and tendering purposes.
Content of it :
General condition,
Standards,
Rated values,
Main system parameters,
General acceptation parameters,
Type & routine tests,
Quality
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SpecificationforTender 347254478
Table of Contents
1.Generalpresentation.......................................................................................................................................3
1.1IECStandards&typesofApplication.....................................................................................................3
1.2Vacuumbreakingtechnology...................................................................................................................3
1.3Manufacturingstandards..........................................................................................................................3
2.RatingValuesandmechanicalcharacteristics................................................................................................4
2.2RatingValues...........................................................................................................................................4
2.3Mechanicalandelectricalcharacteristics.................................................................................................4
3.ConstructionFunctions................................................................................................................................4
3.1Constructionofoperatingmechanism:.....................................................................................................4
3.2LVauxiliaries...........................................................................................................................................4
3.3Recommendedoptionstobeavailable.....................................................................................................5
3.4Indications................................................................................................................................................5
4.Conformityassessmentandroutinetests.......................................................................................................5
4.1Conformityassessment.............................................................................................................................5
4.2Routinetests.............................................................................................................................................5
5.Quality............................................................................................................................................................5
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SpecificationforTender 347254478
1.Generalpresentation
1.1IECStandards&typesofApplication
MediumVoltageOutdoorVacuumCircuitBreakersshallcomplywithIEC622711and62271100
standards:
IEC622711:Commonspecificationsforhighvoltageswitchgearandcontrolgear
IEC62271100:Highvoltagealternatingcurrentcircuitbreakers
OutdoorPorcelainCladCircuitBreakercanbeusedforvariedapplicationswithlonglifeofserviceevenin
severeenvironmentvalidatedinlowtemperatureconditionsandenvironmentalageingtestasperIEC.
Typeofapplications:
Shortcircuitprotection
Transformerswitching
Cableswitching
Overheadlineswitching
CapacitorbankSwitching
Loadtransferandautoreclosing
1.2Vacuumbreakingtechnology
ThethreepolesshouldbewithinthePorcelainchamberssuitableforOutdoorapplication;thepowercircuit
ofOutdoorbreakershouldnotbeaccessibleduringtheservice.
Thevacuuminterruptersaskeypartsofthethreepolesdonotrequireanymaintenance.Theinnerpressure
ofinterrupterchambershallnotexceed1.33x104Paforlifespanthatisatleast30years,withoutneedof
anyspecialtreatmentoverthisperiod.Theinnerpressureofinterrupterchambercanbedetectedand
indicatedwiththesupportofspecificinstrumentprovidedbysupplier.Thecontactwearingofvacuum
interruptercanbemeasuredandanalyzedaccordingtoguidanceofsupplier.TheVacuumInterruptershave
siliconovermouldingincreasingitscreepagedistanceanddielectricwithstandabilitiesmakingitreliable
andmaintenancefreeandSF6free.
1.3Manufacturingstandards
ProductionsiteorganisationshallbecertifiedtocomplywithISO9002andISO14001standardsand
certificatesshallbesubmittedtogetherwiththeproduct.
TheoutdoorVCBshallbedesignedaccordingtoEcodesigncomplyingwithISO14062.Especially
materialsshallbeofhalogenfreetype.Theyshallbesuppliedinseaworthypackingcomplyingwith
EuropeanDirectives.
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SpecificationforTender 347254478
Themanufacturershallimplementnonpollutingproductionprocessesthatdonotmakeuseof
chlorofluorocarbons,chlorinatedhydrocarbons,inkforcardboardmarkings,etc.
2.RatingValuesandmechanicalcharacteristics
2.2RatingValues
Ratedvoltage 36kV
Powerfrequencywithstandvoltage Asperstandard,accordingtoratedvoltage
Lightningimpulsewithstandvoltage Asperstandard,accordingtoratedvoltage
Ratednormalcurrent 2000A
Ratedshortcircuitbreakingcurrent 25kAat36kV
RatedShorttimewithstand 3sec
RatedShortcircuitmakingcurrent 2.5xIsc(at50Hz)or2.6xIsc(at60Hz)
Altitude <1000m
Operatingtemperatures 25C/+40C
2.3Mechanicalandelectricalcharacteristics
Mechanicalendurance ClassM2(10000cycles)
Electricalendurance ClassE2
NumberofoperationsatfullIscvalue 20to50(dependingonIsc)
Capacitivecurrentbreaking ClassC2(forcable&linechargingapplications)
Closingtime <65ms
Openingtime(atUr)<50ms
Mechanismspringschargingtime15s
Operatingsequence O0.3sCO15sCO,O3mnCO3mnCO
3.ConstructionFunctions
TheOutdoorVCBshallbeavailableinafixedversiontobemountedonasteelstructureatsite.The
structurecouldbeofstandarddesignsuitableandvalidatedforhighestseismiccondition(zoneV)andother
severeenvironmentalconditionslikeexposuretotemperature(max50DegC),UV,hailstorm,highwind,
moistureetc.Thestructurecouldbecustomisedbasedonspecialcustomerrequirements
Worldwideinstallbasewithuserexperienceforlast20yearswithimprovedtechnologyforreliabilitySold
inMorethan10countriesworldwide..
TheoutdoorVCBshallbeactuatedbyaspringoperatingmechanismwithfastopeningandclosing,
independentoftheoperator,andthatcanbeoperatedwithoutanyauxiliarysupply.
3.1Constructionofoperatingmechanism:
3.1.1Openingandclosingpushbuttons
3.1.2Amechanicalopenclosedpositionindicator
3.1.3Amechanicalchargeddischargedclosingspringindicator
3.1.4Ablockofauxiliarycontacts
3.2LVauxiliaries
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SpecificationforTender 347254478
AuxiliaryequipmentshallsatisfyIEC62271200standard.
1.5sq.mm.PVCinsulatedflexible1.1kVgradeFRLScopperwire.
Theyshallbemarkedateachendforeasyverificationduringmaintenanceor
servicingwork.
Thecablecrosssectionsshallnotbelessthan1mm
3.3Recommendedoptionstobeavailable
3.3.1.Remotecontroltoenableopeningandclosingofthecircuitbreaker.Theauxiliary
devices(releases)shallacceptauxiliarysupplyfrom24VDCto220VDCandmotorshall
acceptauxiliarysupplyfrom110VDC/ACto220VDC/AC
3.3.2.Mechanicaloperationcounter.
3.3.3.Additionalopeningrelease(shunt)
3.3.4.Lockingthecircuitbreakerintheopenpositionbythemeanofakey.
3.3.5.Aseismicversion
3.4Indications
AuxiliarycontactsforCBposition:6NC+6NOchangeovercontactsshallbeavailabletoindicate
OpenedorclosedpositionoftheCB.
Anauxiliarycontactshallbeavailabletoindicatetheendofchargingoftheoperatingmechanism
4.Conformityassessmentandroutinetests
4.1Conformityassessment
Declarationsofconformity,accordingtoISO17050,willbeprovidedbythetendercoveringtheratings
listedinclause2.
4.2Routinetests
Theroutinetestscarriedoutbythemanufacturershallbesubstantiatedbyatestreportsignedbythe
manufacturer'squalitycontroldepartment.
Thereportshallcoverthefollowingaspects:
Conformitywithdrawingsanddiagrams,
Powerfrequencytests,
Operatingmechanismtests,
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SpecificationforTender 347254478
FunctionaltestsofLVauxiliaries.
5.Quality
Ifrequestedbytheclient,thesuppliershallprovideproofofapplicationofaqualityprocedurecomplying
withstandards.
Thismeans:
Useofaqualitymanualapprovedandsignedbyamanagementrepresentative,
Regularupdatingofthismanualsothatitreflectsthemostrecentapplicablequalitycontrol
procedures,
ISO9002;9001certificationandalsoISO14001.
ProductEnvironnementalProfile(PEP)file.
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