Analysis on Secondary Voltage Unbalance Fault of Capacitor Voltage Transformer

SONG Shoulong; TAN Yanmin; LI Xiaoyan

doi:10.14044/j.1674-1757.pcrpc.2018.02.008

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Analysis on Secondary Voltage Unbalance Fault of Capacitor Voltage Transformer

更新时间：2024-09-14

- Analysis on Secondary Voltage Unbalance Fault of Capacitor Voltage Transformer
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 2, Pages: 42-43(2018)
- 作者机构：
  
  桂林电力电容器有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.02.008
  CLC： TM451.2
- Published：2018，
- 稿件说明：
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[1]宋守龙,谭彦民,李小燕.一起电容式电压互感器二次电压不平衡故障的分析[J].电力电容器与无功补偿,2018,39(02):42-43+63.

SONG SHOULONG, TAN YANMIN, LI XIAOYAN. Analysis on Secondary Voltage Unbalance Fault of Capacitor Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 42-43.
[1]宋守龙,谭彦民,李小燕.一起电容式电压互感器二次电压不平衡故障的分析[J].电力电容器与无功补偿,2018,39(02):42-43+63. DOI： 10.14044/j.1674-1757.pcrpc.2018.02.008.

SONG SHOULONG, TAN YANMIN, LI XIAOYAN. Analysis on Secondary Voltage Unbalance Fault of Capacitor Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 42-43. DOI： 10.14044/j.1674-1757.pcrpc.2018.02.008.

摘要

青海某变电站电容式电压互感器二次电压出现三相不平衡且波形畸变

根据故障现象采用排除法对影响互感器二次电压的各因素进行排查和仿真分析

最终检修验证了故障原因为二次回路中性线接地不良的分析结论。

Abstract

Secondary voltage unbalance and wave distortion are occurred in the capacitor voltage transformer in a certain substation in Qinghai Province. According the fault phenomenon

the elimination method is used to investigate

simulate and analyze various factors affecting the secondary voltage of the voltage transformer

finally

it is verified by the maintenance that the fault is due to bad earthing of the neutral line of the secondary circuit.

关键词

电容式电压互感器（CVT）电压不平衡波形畸变二次回路中性点

Keywords

capacitor voltage transformer（CVT）voltage unbalancewave distortionneutral point in the secondary circuit

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