FU YAN-LIN. Analysis on the Causes of Testing Error for Dielectric Loss Angle tanδ of 110kV Tapped Capacitor Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2010, 31(2): 56-58.
FU YAN-LIN. Analysis on the Causes of Testing Error for Dielectric Loss Angle tanδ of 110kV Tapped Capacitor Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2010, 31(2): 56-58. DOI: 10.14044/j.1674-1757.pcrpc.2010.02.011.
110kV带抽头电容式电压互感器介质损耗角正切tanδ测试误差原因分析
摘要
通过对现场1组110 kV带抽头电容式电压互感器(CVT)介质损耗角正切tanδ测试实例
基于正接线的测量方法
采用AI600E型自动介质损耗电桥
对带抽头CVT的C1、C2介质损耗角正切tanδ测试误差的原因进行分析
得出了由于CX接触不良使得标准臂的参数发生了变化
是引起测试误差的主要原因。
Abstract
The cause of C1 and C2 dielectric loss angle tanδ on tapped capacitor voltage transformer(CVT) is analyzed through the test of dielectric loss angle tanδ of a group of 110 kV tapped CVT
by the use of type AI600E automatic dielectric loss bridge and based upon the positive wiring measurement method.It is concluded that the cause of testing error is due to the bad contact of Cx which has changed the parameter of the standard arm.
关键词
带抽头电容式电压互感器介质损耗角正切tanδ测试误差分析计算
Keywords
tapped capacitor voltage transformertesting error of dielectric loss angle tanδanalysis and calculation