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Electrical,dimensional,andmechanicalcharacteristicsarecovered,takingintoconsiderationcertainsafetyfeatures,forcurrentandinductivelycoupledvoltage transformersoftypesgenerallyusedinthemeasurementofelectricityandthecontrolofequipmentassociatedwiththeIEEEStdC™andasabasisfor performanceandsafetyofequipmentTestsequences,criteria,methods,anddocumentationforthetestarealsodescribedTestsequences,criteria,methods,and documentationforthetestarealsodescribedTableofContentsKeywords:designtest,high-voltage,IEEEC™,instrumenttransformers,routinetests,special tests,testcriteria,testmethod,testrequirements,testsequenceThetestcodecoversmeasurementandcalculationofratioandphaseangle,demagnetization, impedanceandexcitationmeasurements,polaritydetermination,resistancemeasurements,short-timecharacteristics,temperaturerisetests,dielectrictests,and measurementofopen-circuitvoltageofcurrenttransformersLearnMoreAboutCSponsorCommitteeThesetransformersareforbothindoorandoutdoor application.Currentandvoltagetransformers(CTsandVTs)IEEEC,TableStandardmulti-ratiocurrentIEEEStdC™andasabasisforperformanceandsafety ofequipment.ForinstrumenttransformersofanominalsystemvoltageofkVandaboveifClassisrequiredrefertoIEEEStdC(TM)Thisstandardisintendedfor useasasupplementtoIEEEStdCandasabasisforperformanceandsafetyofequipmentRatioTapTapRatioTapItalsodescribestestsequences,criteria, methodsanddocumentationforthetestIEEECTMIEEECTMIEEECTMIEEECTMIEEECTMIEEECTMDateofPublicationISBNInformation: ElectronicISBNINSPECAccessionNumber:PersistentLinkThesetransformersareforbothindoorandoutdoorapplicationThisstandardcoversthe requirementsforClassinstrumenttransformersForinstrumenttransformersofacIEEEGuideforFieldTestingofRelayingCurrentTransformersAdescriptionis givenoffield-testmethodsthatwillensurethatthecurrenttransformersusedasaTheIEEECstandardspecifiesandguidestheuseofcurrentandinductively coupledvoltagetransformersinthemeasurementandcontrolofalternatingcurrentIEEECIEEEStandardRequirementsforInstrumentTransformers(µÍ¹º)B8] Harris,FK,ElectricalMeasurementsNewYork:JohnWileyandSons,Inc,IEEEC,TableStandardmulti-ratiocurrenttransformertaps*RatioIEEE StandardRatingsINSTRUMENTTRANSFORMERSRatioTapRatioTapX2-XX2-XX3-X4IEEEInstrumentTransformersIEEECTMSeriesThisstandard coverstherequirementsforClassinstrumenttransformersRatioTap