浙江电力

2010, v.29;No.165(01) 18-21

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电磁式电压互感器空载励磁电流异常的原因分析
Analysis of Abnormal No-load Excitation Current of Electromagnetic Voltage Transformer

吴尊东,朱旭,王晓明
WU Zun-dong,ZHU Xu,WANG Xiao-ming (Jinhua Electric Power Bureau

摘要(Abstract):

介绍了电磁式电压互感器空载励磁电流测试的原理和方法,分析了110kV国贸变GIS中大国1505线路A相压变空载励磁电流异常的原因,与出厂试验数据进行比较,并经过准确计算查找出了高压侧对地电容的影响因素,为GIS线路压变空载励磁电流的测量提供了借鉴。
This paper introduces testing principles and methods of no-load excitation current of electromagnetic voltage transformer.The paper analyzes reason of abnormal no-load excitation current of electromagnetic voltage transformer of Daguo 1505 line A phase in 110 kV Guomao substation GIS,compares with factory test data,calculates accurately and finds out influencing factors of a high-voltage side-to-ground capacitance.The paper provides a reference for no-load excitation current measurement of GIS line electromagnetic voltage transformer.

关键词(KeyWords): 电磁式TV;励磁电流;对地电容;激磁电流
electromagnetic voltage transformer;exciting current;ground capacitance;magnetizing current

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吴尊东,朱旭,王晓明
WU Zun-dong,ZHU Xu,WANG Xiao-ming (Jinhua Electric Power Bureau

DOI: 10.19585/j.zjdl.2010.01.005

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