GB/T 50832-2013 GBT50832-20131000KV系统电气装置安装工程 电气设备交接试验标准:英文

专用

人人文库

NATIONALSTANDARD

OFTHEPEOPLESREPUBLICOFCHINA

StandardforAcceptanceTestsofElectric

Equipmentof1000kVSystemElectric

EquipmentInstallationEngineering

GB/T50832-2013

ChiefDevelopmentDepartment:ChinaElectricityCouncil

ApprovalDepartment:MinistryofHousingandUrbanRuraDevelopment

-

ofthePeoplesRepublicofChina

ImplementationDate:May1，2013专用

人人文库

ChinaPlanningPress

Beijing2020

ChineseeditionfirstpublishedinthePeoplesRepublicofChinain2013

EnglisheditionfirstpublishedinthePeoplesRepublicofChinain2020专用

byChinaPlanningPress

rd

3Floor，CTower，GuohongBuilding

No.A11，Muxidi-Beili，XichengDistrict

Beijing，100038

PrintedinChinabyBeijingJingyintangGraphicPrintingCenter

©2013byChinaElectricityCouncil

Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformor

byanymeans人人文库，graphic，electronic，ormechanical，includingphotocopying，recording，

oranyinformationstorageandretrievalsystems，withoutwrittenpermissionofthepublisher.

Thisbookissoldsubjecttotheconditionthatitshallnot，bywayoftradeorotherwise，belent，

resold，hiredoutorotherwisecirculatedwithoutthepublisherspriorconsentinanyformof

blindingorcoverotherthanthatinwhichthisispublishedandwithoutasimilarcondition

includingthisconditionbeingimposedonthesubsequentpurchaser.

ISBN978-7-5182-1141-8

中华人民共和国住房和城乡建设部公告

2019年第338号

住房和城乡建设部关于发布《电气装置安装工程

接地装置施工及验收规范》

等10项工程建设标准英文版的公告

现批准《电气装置安装工程接地装置施工及验收规范》（GB50169—2016）、《±800kV

直流换流站设计规范》（GB/T50789—2012）、《1000kV系统电气装置安装工程电气设备交

接试验标准》（GB/T50832—2013）、《光伏发电站施工规范》（GB/T专用50794—2012）、《光伏发电

站设计规范》（GB/T50797—2012）、《光伏发电工程验收规范》（GB/T50796—2012）、《电气装

置安装工程电气设备交接试验标准》（GB50150—2016）、《电力设施抗震设计规范》（GB

50260—2013）、《110kV～750kV架空输电线路施工及验收规范》（GB50233—2014）、《电气装

置安装工程串联电容器补偿装置施工及验收规范》（GB51049—2014）英文版。工程建设标

准英文版与中文版出现异议时，以中文版为准。

工程建设标准英文版由住房和城乡建设部组织中国计划出版社出版发行。

中华人民共和国住房和城乡建设部

2019年12月11日

人人文库

AnnouncementoftheMinistryofHousingandUrban-Rural

DevelopmentofthePeoplesRepublicofChina

No.1591

AnnouncementoftheMinistryofHousingandUrbanRuralDevelopmenton

-

PublishingtheNationalStandardofStandardforAcceptanceTestsofElectric

Equipmentof1000kVSystemElectricEquipmentInstallationEngineering

TheStandardforAcceptanceTestsofElectricEquipmentof1000kVSystemElectricEquipment

InstallationEngineeringhasbeenapprovedasanationalstandardwithaserialnumberofGB/T

50832-2013，andshallbeimplementedfromMay1，2013.

AuthorizedbytheResearchInstituteofStandardsandNorms，MinistryofhousingandUrban

-

RuralDevelopmentofP.R.China，thisstandardispublishedanddistributed专用byChinaPlanningPress.

MinistryofHousingandUrbanRuralDevelopmentofthePeoplesRepublicofChina

-

December25，2012

人人文库

Foreword

AccordingtotherequirementsofDocumentJIANBIAO〔2007〕No.126issuedbytheformer

MinistryofConstruction（nowknownastheMinistryofHousingandUrbanRuralDevelopmentofthe

-

PeoplesRepublicofChina）NoticeonPrintingtheDevelopmentandRevisionPlanofEngineering

-

ConstructionStandardin2007（Package2），thisstandardisjointlydevelopedbyStateGrid

CorporationofChina（SGCC）andotherrelativeinstitutes.

Thisstandardcomprises17chaptersand1appendixintotal，withthemaincontentsasfollows:

generalprovisions，termsandsymbols，powertransformers，reactors，capacitorvoltagetransformers，

gasinsulatedmetalenclosedelectromagneticvoltagetransformers，bushingcurrenttransformers，gas

---

insulatedmetalenclosedswitchgears，groundingswitches，bushings，surgearresters，suspension

-

insulatorspostinsulatorsandcompositeinsulatorsinsulatingoilSFgassecondarycircuitsoverhead

，，，6，，

powertransmissionlinesandgroundingdevices.

TheMinistryofHousingandUrbanRuralDevelopmentofthePeoplesRepublicofChinais

-

responsibleforthemanagementofthisstandard，theChinaElectricityCouncilisresponsiblefor

thedailymanagementofthisstandard，andSGCCisresponsible专用fortheexplanationofspecific

technicalcontents.Allrelevantorganizationsarekindlyrequestedtocollectdataandsumpup

experienceinimplementationofthisstandard，andsendrelevantopinionsandsuggestionsto

SGCC（Address:No.86westChanganAvenue，XichengDistrict，Beijing，Postalcode:

100031），forfuturerevisionreference.

Thisstandardinvolvesthefollowingchiefdevelopmentorganization，participatingdevelopment

organizations，chiefdraftersandchiefreviewers:

ChiefDevelopmentOrganization:

StateGridCorporationofChina

ParticipatingDevelopmentOrganizations:

ChinaElectricPowerResearchInstitute

StateGridElectricPowerResearchInstitute

StateGridACEngineeringConstructionCompany

NorthChinaElectricPowerResearchInstituteCo.，Ltd.（nowknownasStateGrid

人人文库JibeiElectricPowerCompany）

ChiefDrafters:

HanXiancaiWuZhirongWangShaowuWangXiaoqiSunGang

WangBaoshanChenGuoqiangWuShipuWangXiaoning

ChenJiangboWangNinghuaNieDexinWuYihua

DengWantingHanJinhuaHuXiaocenXiuJian

ZhangGuoweiWangPeilongLiJianjian

ChiefReviewers:

LingMinFuXinianLiQishengWangChengyuWanDaGuNihong

LiuYongdongHuHuiranCuiJingchunWangMengyunLiuZhaolin

1··

LianJianhuaYanDongWangLiyingYangLinghuiJinTaoDengChun

ChiefTranslators:

GaoJieChengYangchunTianXiaoXiongYuXuJunGeZhanyu

PengGuozhengZhangXiaHeFei

专用

人人文库

·2·

Contents

1GeneralProvisions……………（1）

2TermsandSymbols……………（2）

2.1Terms…………………………（2）

2.2Symbols………………………（2）

3PowerTransformers……………（3）

4Reactors…………………………（9）

5CapacitorVoltageTransformers………………（13）

6GasinsulatedMetalenclosedElectromagneticVoltageTransformers………（16）

--

7BushingCurrentTransformers…………………（18）

8GasinsulatedMetalenclosedSwitchgears……………………（20）

--

9GroundingSwitches……………（26）

10Bushings………………………（27）

11SurgeArresters………………（29）

12SuspensionInsulators，PostInsulatorsandCompositeInsulators…………（30）

13InsulatingOil…………………专用（31）

14SFGas33

6………………………（）

15SecondaryCircuits……………（34）

16OverheadPowerTransmissionLines…………（35）

17GroundingDevices……………（36）

AppendixATableofSpecialTestItems………（37）

ExplanationofWordinginThisStandard…………（38）

ListofQuotedStandards…………（39）

人人文库

1GeneralProvisions

Thisstandardisformulatedwithaviewtoimprovethelevelofacceptancetestofelectric

1.0.1

equipmentof1000kVsystemelectricequipmentinstallationengineeringandensurethatelectric

equipmentcanbeputintooperation.

Thisstandardisapplicabletotheacceptancetestofelectricequipmentof1000kVACelectric

1.0.2

equipmentinstallationengineering.

Acceptancetestdatashallbesubjectedtocomprehensiveanalysisandcomparison.Judgment

1.0.3

resultsshallbeobtainedthroughcomprehensiveanalysis，withreferencetomanufacturersroutinetest

resultsandbycomparingwiththetestdataofsimilarequipment.

For1000kVoilfilledelectricequipment，priortowithstandvoltagetest，standingfornotless

1.0.4-

than168hoursshallbecarriedoutaftervacuumoilfillingandhotoilcirculation.

Forvarioustestsrelatedtotemperatureandhumidity，thetemperatureoftestedobjectand

1.0.5

ambienttemperatureandhumidityshallbemeasuredsimultaneously.Duringthemeasurementof

transformeroiltemperature，attentionshallbepaidtotheimpactsofsunlightonthemeasuredvalues.

Duringcomparisonwithmanufacturersroutinetestdata，comparison专用amongthetestdataofsimilar

equipmentmaybecarriedout.

Theinsulationtestshallbecarriedoutinafineweatherontheconditionthattheambient

1.0.6

temperatureoftestedobjectandinstrumentsshallnotbelowerthan5℃andtherelativeairhumidity

shouldnotbehigherthan80%.

Forspecialtestitemswhichhavespecialrequirementsontestsystemsandarefeaturedwith

1.0.7

hightechnicaldifficultiesandhighrequirements，testsshallbecarriedoutinaccordancewithAppendix

Aofthisstandard.

Fortheacceptancetestofelectricequipmentof1000kVsystemelectricequipmentinstallation

1.0.8

engineering，notonlytherequirementsstipulatedinthisstandard，butalsothoseinthecurrentrelevant

standardsofthenationshallbecompliedwith.

人人文库

·1·

2TermsandSymbols

2.1Terms

Acceptancetest

2.1.1

Itreferstoinspectionandtestcarriedoutafteronsiteinstallationofnewelectricequipmentand

-

duringcommissioningofsuchequipment.Forsomeequipment，theacceptancetestitemshavebeen

carriedoutduringinstallationworks，andthereforeshallalsobecoveredintherangeofacceptancetest.

Maintransformer

2.1.2

Itreferstothebodypartofatransformer，providedthatthetransformerbodyandtheregulating

compensationtransformerofone1000kVtransformerarearrangedindifferenttanks.

Regulatingcompensationtransformer

2.1.3

Itreferstothevoltageregulatingandcompensatingpartofatransformerandisarrangedinatank

differentfromthatofmaintransformer.Acompensatorisusedtoreducethevoltagefluctuationofthe

thirdwindingofatransformerduringvoltageregulationatneutralpoints.

Testofmaintransformer

2.1.4

Itreferstotestcarriedoutindependentlyforamaintransformer.专用

Testofregulatingcompensationtransformer

2.1.5

Itreferstoatestcarriedoutindependentlyforaregulatingcompensationtransformer.

Integraltestoftransformer

2.1.6

Itreferstoatestcarriedoutupontheconnectionbetweenmaintransformerandregulating

compensationtransformer.

Voltagetap

2.1.7

Itreferstoaleadwirewhichiseasilysubjectedtoexternalconnectionfromabushing，insulated

fromflangesorotherfasteners，andconnectedwithanexternalconductinglayerofcondenserbushing.It

isusedtoprovideavoltagesourceduringoperationofthebushing.

Gasinsulatedmetalenclosedelectromagneticvoltagetransformer

2.1.8--

Itreferstoanelectromagneticvoltagetransformerusedingasinsulatedmetalenclosed

--

switchgearsGIS.SulfurhexafluorideSFisusedasaninsulatingmediumforsuchelectromagnetic

（）（6）

voltagetransformers人人文库.

2.2Symbols

——ratedvoltageofelectricequipment

Ur；

——ratedcurrentofelectricequipment

Ir；

——maximumworkingvoltageofelectricequipment

Um；

tanδ——dielectriclossfactor.

·2·

3PowerTransformers

Theacceptancetestsof1000kVtransformersshallbecarriedoutinaccordancewithtestson

3.0.1

maintransformers，testsonregulatingcompensationtransformersandintegraltests，andshallinclude

thefollowingcontents:

Thetestitemsofmaintransformersshallincludethefollowingcontents:

1

）Leakagetest；

1

）MeasurementofDCresistanceofwindingwithbushing；

2

）Measurementofvoltageratio；

3

）Inspectionofpolarityofoutgoingline；

4

）Measurementofinsulationresistance，absorptionratioandpolarizationindexofwindingwith

5

bushing；

）Measurementofdielectriclossfactor（tanδ）andcapacitanceofwindingwithbushing；

6

）Measurementofinsulationresistanceofcoreandclamp；

7

）Bushingtest；

8

）Bushingcurrenttransformertest；专用

9

）Testofinsulatingoil；

10

）Analysisofdissolvedgasesinoil；

11

）Noloadtestonlowvoltage；

12-

）Powerfrequencywithstandvoltagetestofwindingwithbushing；

13-

）Longdurationinducedvoltagetestwithpartialdischargemeasurementofwindingtogether

14--

withbushing；

）Frequencyresponseanalysisofwinding；

15

）Measurementofshortcircuitimpedanceatsmallcurrent.

16-

Thetestitemsofregulatingcompensationtransformersshallincludethefollowingcontents:

2

）Leakagetest；

1

）MeasurementofDCresistanceofwindingwithbushing；

2

）Measurementofvoltageratioofalltappings；

3

）Polarityinspectionforoutgoinglineoftransformer；

4

）Measurementofinsulationresistance，absorptionratioandpolarizationindexofwindingwith

5人人文库

bushing；

）Measurementofdielectriclossfactor（tanδ）andcapacitanceofwindingwithbushing；

6

）Measurementofinsulationresistanceofcoreandclamp；

7

）Bushingtest；

8

）Bushingcurrenttransformertest；

9

）Testofinsulatingoil；

10

）Analysisofdissolvedgasesinoil；

11

）Noloadtestonlowvoltage；

12-

）Powerfrequencywithstandvoltagetestofwindingwithbushing；

13-

·3·

）Longdurationinducedvoltagetestwithpartialdischargemeasurementwindingtogether

14--

withbushing；

）Frequencyresponseanalysisofwinding；

15

）Measurementofshortcircuitimpedanceatsmallcurrent.

16-

Theintegraltestitemsshallincludethefollowingcontents:

3

）Measurementofvoltageratioofalltappings；

1

）Inspectionofpolarityandphaserelationofoutgoingline；

2-

）Impactclosingtestonratedvoltage；

3

）Soundlevelmeasurement.

4

Duringleakagetest，0.03MPastaticpressureshallbeappliedtotheoillevelofconservator，and

3.0.2

thetestdurationshallbe24hours.Neitherleakagenordamageshallbeallowedduringthisperiod.

DCresistancemeasurementofwindingwithbushingshallmeetthefollowingrequirements:

3.0.3

Measurementshallbecarriedoutatalltappings.Thetestcurrentshouldnotexceed2.5Afor

1

1000kVwinding，notexceed5Afor500kVwinding，andnotexceed20Afor110kVwinding.Duringthe

measurementofDCresistanceofregulatingcompensationtransformer，atleastoneterminalofother

unmeasuredwindingsshallbedisconnectedfromothercircuits.

FortheDCresistanceofmaintransformerandregulatingcompensationtransformer，the

2

differenceamongthemeasuredvaluesofeachphaseshallbelessthan2%oftheaveragevalueofthe

threephases.专用

AftertheDCresistancemeasurementsofthemaintransformerandregulatingcompensation

3

transformer，theresultsshallbecomparedtotheroutinetestdataofproductsobtainedatthesame

temperature，andcorrespondingdifferenceinDCresistanceshallnotexceed2%.

TheDCresistancemeasurementoftransformerwithoffcircuittapchangershallbecarriedout

4-

afterthelockingoftapchanger.

Thetemperatureshallbetheaverageoiltemperature.Resistancevaluesmeasuredatdifferent

5

temperaturesshallbeconvertedaccordingtothefollowingformula:

=×（+）/（+）3.0.3

R2R1Tt2Tt1（）

Where——resistanceΩmeasuredattemperaturesandrespectively

，R1，R2（）t1t2；

T——temperaturecoefficientofresistance，takenas235forcopperconductor；

——differentmeasurementtemperatures°C.

t1，t2（）

Thevoltageratiomeasurementshallmeetthefollowingrequirements:

3.0.4

Thevoltageratioateachtappingshallcomplywiththevoltageratiorulesindicatedon

1

nameplate，andshall人人文库notbeobviouslydifferentfromthedataonnameplate.Thevoltageratioof

regulatingcompensationtransformershallnotbeobviouslydifferentfrommanufacturersroutinetest

results.

Theallowabledeviationshallbe±0.5%fortheratedtappingvoltageratio，and±1%for

2

othertappingvoltageratio.

Inspectionshallbecarriedoutforpolarityandphaserelationofoutgoingline.Thepolarityof

3.0.5-

outgoinglineshallbeconsistentwiththesymbolsonthetransformernameplateandthemarksonoil

tank.Thethreephasephaserelationshallmeetthedesignrequirements.

--

Themeasurementofinsulationresistance，absorptionratioandpolarizationindexofwinding

3.0.6

withbushingshallmeetthefollowingrequirements:

·4·

5000Vmegametershallbeused.

1

Theinsulationresistanceshouldnotbelessthan70%ofroutinetestvalue.

2

Thetemperatureshallbetheaverageoiltemperature，andthemeasurementshallbecarriedout

3

atatemperaturebetween10°C-40°C.Incaseofanydifferencebetweenmeasurementtemperatureand

routinetesttemperature，conversiontoinsulationresistanceatthesametemperaturemaybecarriedout

forcomparison.Notemperatureconversionisrequiredforabsorptionratioandpolarizationindex.Incase

ofanydifferenceintesttemperatures，insulationresistanceshallbeconvertedaccordingtothefollowing

formula:

（-）/10

=×1.5t1t23.0.6

R2R1（）

Theabsorptionratioshallnotbelessthan1.3，orthepolarizationindexshallnotbelessthan

4

1.5.Theabsorptionratioorpolarizationindexshallnotbeobviouslydifferentfrommanufacturer's

routinetestvalue.

IftheinsulationresistanceRisgreaterthan10000MΩ，witharelativelylowabsorptionratio

560s

andpolarizationindex，comprehensivejudgmentshallbecarriedoutbasedonthedielectriclossfactorof

windingwithbushing.

Themeasurementofdielectriclossfactor（tanδ）andcapacitanceofwindingwithbushingshall

3.0.7

meetthefollowingrequirements:

Duringthemeasurement，untestedwindingsshallbesubjectedtoshortcircuitgrounding，and

1-

windingstestedshallbeinshortcircuitconnectionwithtestinstrument专用.Thetestvoltageshouldbe

-

10kVAC.

Thedielectriclossfactor（tanδ）ofwindingwithbushingshallnotbegreaterthan130%of

2

routinetestvalue，andthecapacitanceshallbeinsignificantlydifferentfromroutinetestvalues.

Thetemperatureshallbetheaverageoiltemperature，andmeasurementshallbecarriedoutata

3

temperaturebetween10℃-40℃.Incaseofanydifferencebetweenmeasurementtemperatureand

routinetesttemperature，conversiontotanδatthesametemperaturemaybecarriedoutforcomparison.

Conversionshallbecarriedoutaccordingtothefollowingformula:

（-）/10

tan=tan×1.3t2t13.0.7

δ2δ1（）

Wheretanandtandielectriclossfactorsattemperaturesandrespectively.

，δ1δ2——t1t2

Themeasurementofinsulationresistanceofcoreandclampshallmeetthefollowing

3.0.8

requirements:

2500Vmegametershallbeused，andthedurationshallbe1min.Noabnormitiesshallbefound

1

duringthisperiod.

Measuretheinsulationresistancebetweencoreandoiltank，andtheresultsshallnotbe

2人人文库

obviouslydifferentfromtheresultsofroutinetest.

Measuretheinsulationresistancebetweenclampandoiltankandtheinsulationresistance

3

betweencoreandclamp，andtheresultsshallnotbeobviouslydifferentfromtheresultsofroutinetest.

ThebushingtestshallbecarriedoutinaccordancewithChapter10ofthisstandard.

3.0.9

TheBushingcurrenttransformertestshallbecarriedoutinaccordancewithChapter7ofthis

3.0.10

standard.

TheinsulatingoiltestshallbecarriedoutinaccordancewithChapter13ofthisstandard.

3.0.11

Theanalysisofdissolvedgasesinoilshallmeetthefollowingrequirements:

3.0.12

Analysisshallbecarriedoutoncerespectively:beforefilling，after24hoursofstanding，

1

·5·

24hoursafterpartialdischargetestandACwithstandvoltagetest，afterimpactclosingandafter

24hoursand168hoursofoperationonratedvoltage.

TestshallbecarriedoutinaccordancewiththecurrentnationalstandardGuidetotheAnalysis

2

andtheDiagnosisofGasesDissolvedinTransformerOilGB/T7252.

Thegasdissolvedinoilshallnotcontainacetylene.Moreover，thetotalhydrocarbonshallbe

3

lessthanorequalto20μL/L，andthehydrogenshallbelessthanorequalto10μL/L.

Thedatameasuredeachtimeshouldbeofnoobviousdifference.Incaseofincreasingtendency

4

ingascontent，comprehensiveanalysisandjudgmentmaybecarriedoutincombinationwithrelativegas

generationrate，andtracinganalysis，wherenecessary，shallbecarriedoutbyshorteningthesampling

periodofchromatographicanalysis.

Noloadtestonlowvoltageshallmeetthefollowingrequirements:

3.0.13-

ThenoloadlossandnoloadcurrentoftransformershouldbemeasuredonAC380V，andthe

1--

NoloadtestonlowvoltageshouldbecarriedoutbeforetheDCresistancetest.

-

ThenoloadlossandthenoloadcurrentoftransformeronAC380Vshallnotbeobviously

2--

differentfromroutinetestvaluesmeasuredonthesamevoltage.

Thenoloadlossandthenoloadcurrentamongthreephasesmeasuredonavoltageof380V

3--

shallhavenoobviousdifference.

Thepowerfrequencywithstandvoltagetestofwindingwithbushingshallmeetthefollowing

3.0.14-

requirements:专用

ACwithstandvoltagetestshallbecarriedoutfortransformerneutralpointand110kVwinding，

1

andthepartialdischargeduringthetestperiodshallbemonitored.

Thetestvoltageshallbe80%ofroutinetestvoltage.Thevoltageofappliedwithstandvoltage

2

testshallbeinaccordancewiththosespecifiedinTable3.0.14，andthedurationofwithstandvoltage

testshallbe1min.

Table3.0.14Voltage（kV）ofappliedwithstandvoltagetest

VoltageapplicationpositionRoutinetestvoltageAcceptancetestvoltage

Neutralpoint140112

110kVwinding275220

Testvoltageshall，wherepossible，beclosetosinusoidalwaveform，andshallbeobtainedby

3

dividingthepeakofmeasuredvoltageby.

Duringtest，transformershallbefreefromabnormities.

4

Longdurationinducedvoltagetestwithpartialdischargemeasurementofwindingtogether

3.0.15-人人文库-

withbushingshallmeetthefollowingrequirements:

Longdurationinducedvoltagetestwithpartialdischargemeasurementofwindingtogether

1--

withbushingshallbecarriedoutformaintransformerandregulatingcompensationtransformer.

Remanenceimpactsshallbetakenintoaccountpriortotest.

TestandjudgmentmethodsshallcomplywiththecurrentnationalstandardPower

2

TransformersPart3:InsulationLevel，DielectricTestsandExternalClearancesinAirGB1094.3.

-

Duringpartialdischargetest，voltageshallbeappliedinaccordancewiththefollowing

3

procedures:

）Duringpartialdischargetestofmaintransformer，TheUis1100kV，andvoltagetoground

1m

·6·

shallbeasfollows:

U=1.5U/3（3.0.151）

1m-

U=1.3U/3（3.0.152）

2m-

Where——excitationvoltage

，U1；

——measuredvoltage.

U2

）Duringpartialdischargetestofregulatingcompensationtransformer，theUshallbe126kV，

2m

andvoltagetogroundshallbeasfollows:

U=1.7U/3（3.0.153）

1m-

U=1.5U/3（3.0.154）

2m-

）PowersupplyshallbeswitchedonunderavoltagenotgreaterthanU/3.

32

）Increasethevoltageto1.1Uandkeepfor5min.

4m

）IncreasethevoltagetoUandkeepfor5min.

52

）IncreasethevoltagetoU.Ifthetestpowerfrequencyisequaltoorlessthan2timesofrated

61

frequency，thetestdurationshallbe60s；andifthetestfrequencyexceeds2timesofrated

Rated'frequency

frequency，thetestdurationshallbecalculatedas120×，andshallnotbe

Test'frequency

lessthan15s.

）DecreasethevoltageuninterruptedlytoU，andkeepfor60minatleast，andmeasurethe

72专用

partialdischarge.

）Decreasethevoltageto1.1U，andkeepfor5min.

8m

）Switchoffthepowersupply，providedthatthevoltageisdecreasedtobebelowU/3.

92

Partialdischargeshallbeobservedandevaluatedinaccordancewiththecurrentnational

4

standardPartialDischargeMeasurementsGB/T7354，aswellasthefollowingrequirements:

）Measurementshallbecarriedoutatallwindingterminals，andforapairofautoconnected

1-

windings，simultaneousmeasurementshallbecarriedoutathighvoltageandlowvoltage

--

terminals.

）Forthemeasurementchannelconnectedtoeachterminal，repeatedpulseshallbeapplied

2

betweentheterminalandthegroundforcalibration.Incaseofanyabnormaldischargepulse

occurringduringpartialdischargemeasurement，ultrasonicmonitoringofpartialdischarge

shallbecarriedout，andcomprehensivejudgmentshallbecarriedout.

）Beforeandaftertheapplicationoftestvoltage，measurementshallbecarriedoutforthe

3

backgroundnoiselevelofallmeasurementchannels.

Duringvoltage人人文库risetoorvoltagedropfrompossiblepartialdischargeinceptionvoltage

）UU，

422

andextinctionvoltageshallberecorded.Apparentdischargeofpartialdischargeshallbe

measuredat1.1.

Um

）OnereadingshallberecordedatthefirststageofvoltageU.Norequirementonapparent

52

dischargeofthevoltageismadeatthisstage.

）OnereadingshallberecordedintheperiodofvoltageU.Norequirementonapparent

61

dischargeofthevoltageismadeinthisperiod.

）IntheentireperiodofthesecondstageofvoltageU，partialdischargelevelshallbeobserved

72

continuouslyandrecordedonceevery5min.

·7·

Ifthefollowingrequirementsaremet，thetestresultshallbequalified:

5

）Testvoltageshallsufferfromnosuddendrop.

1

）DuringtestofU，thecontinuouspartialdischargelevelsshallnotbegreaterthan100pC，

22

200pCand300pCfor1000kV，500kVand110kVsidesofmaintransformerrespectively，and

shallnotbegreaterthan300pCfor110kVterminalofregulatingcompensationtransformer.

）ThepartialdischargeshallnottrendtoincreasecontinuouslyatU.Accidentalpulsewitha

32

relativelyhighamplitudeandobviousexternalcoronapulsemaybeexcluded.

）Thecontinuousapparentchargelevelshallnotbegreaterthan100pCat1.1U.

4m

Frequencyresponseanalysisofwindingshallmeetthefollowingrequirements:

3.0.16

Frequencyresponsetestshallbecarriedoutforeachtransformerwinding.

1

Thefrequencyresponsecurvesofcorrespondingwindingsoftransformersinthesamegroup

2

shallbebasicallythesame.

Themeasurementofshortcircuitimpedanceatsmallcurrentshallmeetthefollowing

3.0.17-

requirements:

Measurementshallbecarriedoutfortheshortcircuitimpedanceoftransformeratacurrentof5A.

1-

Theshortcircuitimpedanceoftransformermeasuredatacurrentof5Ashallnotbeobviously

2-

differentfromtheroutinetestvaluesmeasuredatthesamecurrent.

Impactclosingtestonratedvoltageshallmeetthefollowingrequirements:

3.0.18

Impactclosingtestoftransformershallbecarriedouton专用ratedvoltage.Duringtest，the

1

transformerneutralpointshallbegrounded，andthetapshouldbeatthesettingtappingposition.

Theoperatingtimeafterthe1stimpactclosingshallnotbelessthan30minandcouldbe

2.，

graduallyshortenedaftereachsubsequentclosing，butshallnotbelessthan5min.

Duringimpactclosing，noabnormalsoundandthelikeshallbeproduced，andprotectiondevice

3

shallnotact.

Inrushcurrentanditsattenuationtimemaybemeasuredduringimpactclosing.

4

Thesoundlevelmeasurementshallmeetthefollowingrequirements:

3.0.19

Ontheconditionthatallinservicecoolingdevicesarestarted，thesoundlevelsmeasuredatthe

1-

locations2mawayfromthereferencesoundemittingsurfaceofmaintransformerand0.3mawayfrom

thatofregulatingcompensationtransformershallmeetrequirements.

Measurementmethodsandcorrespondingrequirementsshallcomplywiththecurrentnational

2

standardPowerTransformerPart10:DeterminationofSoundLe