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1（CVT），CVT、、、。CVT110kV，、，，。。QS1，，，，，，。，，220kVCVT，。2CVT2.1CVT220kV（C11、C12C2）、L、TR，（C11、C12）C2，，。，。，，。，。CVT，，，，CVT。2.2、、，，。、，。2.3CVT，CVT，CVT。，CVTCVT。CVT，CVT，TestDiscussionofCapacitorVoltageTransformerwithDisconnectionLIMing,LIUXun,LIUYa（ShangqiuPowerSupplyCompany,Shangqiu476000,China）Abstract：Thebasicprincipleofcapacitorvoltagetransformerisintroduced.Thetestmethodsareanalyzed.Keywords：Capacitorvoltagetransformer；Capacitance；Dielectricloss，，（476000）：，。：；；：TM406：B：1001－8425（2010）03－0032－03TRANSFORMER47320103Vol.47MarchNo.32010、、3（1），CVT，C11、C12（C11、C12C1）C2，，。，RC，A，IX，δδ′，90°（2）。，C11、C12（C11、C12C1）C2，δ3kV，，。，，，。，、，，，，220kV—。3。C11，3。C11，（A，C11），2kV。，δX，δX，C2，C2CaC12C11。C11，δX，3A，。C12C2，4。，，ax，，，C11，C11，，。，：，，CVT。C2，、、CVT，40Hz～47.5Hz，BUB2.5kV。4220kV，1。HVC1CRAC2CX1C1C2Fig.1EquivalentcircuittomeasureC1andC2duringpositiveconnectionIXIX′INδUNδ′2IXIX′Fig.2DiagramtochangeIXtoIX′C11AC12BC2XTXδ3C11Fig.3CircuittomeasureC11C11C12BAC2XTδax4C12C2Fig.4CircuittomeasureC12andC23347：2009-02-10：（1962-），，，，。CVTC12C22。，，，，。5，，。CVT，。CVTC11、C12C2CVT，CVT。CVTC12C2，CVT，。C240Hz～47.5Hz，B2.5kV。δ，。CVT，C11，Xδ。：[1]，.[J].，2008（8）：44.[2]，，.CVT[J].，2004（7）：55-57.[3]，.220kVCVT[J].，2006，42（8）：468-469.tanδ/%tanδ/%/pFCX/pF/%CX/pF/%1C110.0460.0561001699810.35100300.142C110.0410.06110160102861.24101500.101C110.0710.08110000102862.86101201.202C110.0880.07710000100600.60101101.10220kVAC110.0770.07310000101031.03101601.60220kVBC110.070.07510179102200.40102250.45220kVCC110.0750.06110101101400.39101470.451C11Table1DataofC11ofvoltagetransformerswithconnectionanddisconnectiontanδ/%tanδ/%/pFCX/pF/%CX/pF/%220kVCC20.0840.06750960516771.40510490.171C120.0530.09312594126730.63126200.211C20.0670.09650468515522.14508000.662C120.0530.09312617128161.58126800.502C20.0570.0895033350241-0.18505500.431C120.0370.09112500128542.83126070.861C20.0330.08949958516963.39500430.082C120.0740.0871250012480-0.16125600.482C20.0870.08550000501100.22500950.20220kVAC120.0830.06412500126020.81126901.52220kVAC20.0820.07250000508921.78504100.82220kVBC120.1040.06212644128701.82126610.13220kVBC20.110.05950569516702.17515261.89220kVCC120.0520.05812690127140.19126350.432C12C2Table2DataofC12andC2ofvoltagetransformerswithconnectionanddisconnection34