Treatment and Analysis of a Breakdown Fault of CVT Dividing Capacitor

MU Jingyu; HUA Chao

doi:10.14044/j.1674-1757.pcrpc.2014.04.017

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Treatment and Analysis of a Breakdown Fault of CVT Dividing Capacitor

更新时间：2024-09-14

- Treatment and Analysis of a Breakdown Fault of CVT Dividing Capacitor
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 35, Issue 4, Pages: 75-78(2014)
- 作者机构：
  
  国网安徽省电力公司检修公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2014.04.017
  CLC： TM53
- Published：2014，
- 稿件说明：
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[1]穆靖宇,华超.一起CVT分压电容器击穿事故的处理和分析[J].电力电容器与无功补偿,2014,35(04):75-78.

MU JINGYU, HUA CHAO. Treatment and Analysis of a Breakdown Fault of CVT Dividing Capacitor. [J]. Power capacitor & reactive power compensation, 2014, 35(4): 75-78.
[1]穆靖宇,华超.一起CVT分压电容器击穿事故的处理和分析[J].电力电容器与无功补偿,2014,35(04):75-78. DOI： 10.14044/j.1674-1757.pcrpc.2014.04.017.

MU JINGYU, HUA CHAO. Treatment and Analysis of a Breakdown Fault of CVT Dividing Capacitor. [J]. Power capacitor & reactive power compensation, 2014, 35(4): 75-78. DOI： 10.14044/j.1674-1757.pcrpc.2014.04.017.

摘要

介绍了一起CVT分压电容器元件击穿导致二次电压异常现象的处理过程

运用红外测温、绝缘油试验等带电检测手段初步判断故障部位

结合停电试验、解体检查等方法找到故障部位

并分析故障发生的原因

最后

给出相应的事故处理改进措施。本次事故处理表明

红外测温、绝缘油试验是一种简便易行的带电检测手段

能够及时发现设备的早期缺陷

为设备的状态评估提供重要依据。

Abstract

In this paper

the treatment process of abnormal secondary voltage due to breakdown of element of CVT dividing capacitor is introduced

the fault position is preliminarily judged by live detection measures such as infrared temperature measurement and insulating oil test

and the reason of such fault is analyzed combining with testing disconnect from the high voltage line and disassembling inspection. Finally

corresponding improvement measures of the fault are given. It is shown by the treatment of the fault that infrared temperature measurement and insulation oil test are a simple live testing methods

which can find out the defect in equipment at early stage and provide important evidence for condition evaluation of equipment.

关键词

电容式电压互感器（CVT）二次电压击穿事故处理

Keywords

capacitive voltage transformer（CVT）secondary voltagebreakdownfault treatment

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