Failure Analysis and Treatment on Two Capacitor Voltage Transformers

CHEN Wen-da1; CAO Xiao-long2; CAO Xiao-hu3; TIAN Yi-qing2; WU Dong-liang2

doi:10.14044/j.1674-1757.pcrpc.2011.05.015

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Failure Analysis and Treatment on Two Capacitor Voltage Transformers

更新时间：2024-09-14

- Failure Analysis and Treatment on Two Capacitor Voltage Transformers
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 32, Issue 5, Pages: 68-72(2011)
- 作者机构：
  
  1. 甘肃武威供电公司
  2. 甘肃天水供电公司
  3. 甘肃天水超高压输变电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2011.05.015
  CLC： TM451
- Published：2011，
- 稿件说明：
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[1]陈文大,曹小龙,曹小虎,田奕清,吴栋梁.两起电容式电压互感器故障的分析处理[J].电力电容器与无功补偿,2011,32(05):68-72.

CHEN WEN-DA1, CAO XIAO-LONG2, CAO XIAO-HU3, et al. Failure Analysis and Treatment on Two Capacitor Voltage Transformers. [J]. Power capacitor & reactive power compensation, 2011, 32(5): 68-72.
[1]陈文大,曹小龙,曹小虎,田奕清,吴栋梁.两起电容式电压互感器故障的分析处理[J].电力电容器与无功补偿,2011,32(05):68-72. DOI： 10.14044/j.1674-1757.pcrpc.2011.05.015.

CHEN WEN-DA1, CAO XIAO-LONG2, CAO XIAO-HU3, et al. Failure Analysis and Treatment on Two Capacitor Voltage Transformers. [J]. Power capacitor & reactive power compensation, 2011, 32(5): 68-72. DOI： 10.14044/j.1674-1757.pcrpc.2011.05.015.

摘要

介绍了运行中碰到的电容式电压互感器低压端"δ"断线和中间电磁单元故障

通过分析设备发生故障时所表现出的异常现象

运用在线监测、红外测温、电气试验、解体检查等诊断方法查找故障原因和部位

经综合分析判断

准确地找到了故障原因和部位

成功处理了这2起不同性质的故障

并给出相应的建议性改进措施:指出在故障的处理过程中应综合采用各种检测手段和方法确定故障原因和部位

科学合理地指导检修工作。

Abstract

The failures about "δ" disconnection and middle electromagnetic unit of capacitor voltage transformer encountered in operation is described

the cause and location of such failure is checked through analyzing abnormal phenomena inhibited in the failure of the equipment and also by way of online monitoring

infrared temperature measurement

electrical test and disassembly examination.Finally

the cause and location of such failure is correctly found throughout comprehensive analysis and judgement

these two different types of failures are sucessfully resolved and the corresponding improvement measures are proposed: in case of failure treatment various detection methods and measures shall be used comprehensively to fix the cause and location

the maintenance work be scientifically and reasonably instructed.

关键词

电容式电压互感器（CVT）故障在线监测红外测温电气试验绝缘油试验

Keywords

capacitor voltage transformers（CVT）failureonline monitoringinfrared temperature measurementelectrical testinsulating oil test

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