Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown

LIU Yongxin; WANG Penghao; LI Yanpeng; LIANG Jichong; MA Liqiang

doi:10.14044/j.1674-1757.pcrpc.2014.06.017

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Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown

更新时间：2024-09-14

- Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 35, Issue 6, Pages: 77-80(2014)
- 作者机构：
  
  1. 国网山西电力科学研究院
  2. 国网太原供电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2014.06.017
  CLC： TM451.2
- Published：2014，
- 稿件说明：
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[1]刘永鑫,王鹏皓,李艳鹏,梁基重,马丽强.基于CVT电容元件击穿的事故分析计算[J].电力电容器与无功补偿,2014,35(06):77-80+90.

LIU YONGXIN, WANG PENGHAO, LI YANPENG, et al. Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown. [J]. Power capacitor & reactive power compensation, 2014, 35(6): 77-80.
[1]刘永鑫,王鹏皓,李艳鹏,梁基重,马丽强.基于CVT电容元件击穿的事故分析计算[J].电力电容器与无功补偿,2014,35(06):77-80+90. DOI： 10.14044/j.1674-1757.pcrpc.2014.06.017.

LIU YONGXIN, WANG PENGHAO, LI YANPENG, et al. Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown. [J]. Power capacitor & reactive power compensation, 2014, 35(6): 77-80. DOI： 10.14044/j.1674-1757.pcrpc.2014.06.017.

摘要

针对电容式电压互感器（CVT）因电容元件击穿引起的设备故障问题

结合返厂解体情况

通过对故障电容式电压互感器进行试验

依据试验数据、电容单元数量和电容量进行理论计算

研究得出监测电容式电压互感器二次电压波动的取值范围

并提出运维策略

以进一步提高通过监测二次电压发现电容式电压互感器故障的几率。

Abstract

As for the fault of capacitor voltage transformer（CVT）due to breakdown of capacitor element

the theoretical calculation is made based on disassembly of the CVT in factory and on test data

capacitor element numbers and the capacitance throughout test of the faulty CVT

the secondary voltage fluctuation range of CVT is studied and obtained.The operation and the maintenance strategy are proposed so to increase the fault-finding probability of CVT

which will improve the problemfinding probability of CVT by detecting secondary voltage.

关键词

电容式电压互感器电容单元击穿二次电压

Keywords

capacitor voltage transformer（CVT）capacitor elementbreakdownsecondary voltage

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