Fault Analysis and Prevention Measures of CVT in 220kV Line

TONG Yu; FANG Bo-yi

doi:10.14044/j.1674-1757.pcrpc.2013.04.017

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Fault Analysis and Prevention Measures of CVT in 220kV Line

更新时间：2024-09-14

- Fault Analysis and Prevention Measures of CVT in 220kV Line
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 34, Issue 4, Pages: 78-82(2013)
- 作者机构：
  
  超高压输电公司柳州局
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2013.04.017
  CLC： TM451.2
- Published：2013，
- 稿件说明：
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[1]童钰,房博一.一起220kV线路CVT故障分析及防范措施[J].电力电容器与无功补偿,2013,34(04):78-82.

TONG YU, FANG BO-YI. Fault Analysis and Prevention Measures of CVT in 220kV Line. [J]. Power capacitor & reactive power compensation, 2013, 34(4): 78-82.
[1]童钰,房博一.一起220kV线路CVT故障分析及防范措施[J].电力电容器与无功补偿,2013,34(04):78-82. DOI： 10.14044/j.1674-1757.pcrpc.2013.04.017.

TONG YU, FANG BO-YI. Fault Analysis and Prevention Measures of CVT in 220kV Line. [J]. Power capacitor & reactive power compensation, 2013, 34(4): 78-82. DOI： 10.14044/j.1674-1757.pcrpc.2013.04.017.

摘要

针对220 kV TEMP-220SU型CVT三相输出电压不平衡问题

通过对故障CVT进行高压试验和设备解体分析

发现C2电容器元件击穿导致二次输出电压降低是CVT故障的主要原因

最后结合日常巡视和高压试验方法提出了相应预防措施

为同类设备的安全可靠运行提供指导性的建议。

Abstract

As for imbalance of three-phase output voltage of 220 kV TEMP-220SU capacitor voltage transformer（CVT）.Through high voltage test and disassembly analysis for the faulty CVT

the main reason of CVT fault is the reduction of the secondary output voltage which caused by breakdown of C 2 capacitor element.Finally

based on daily patrol and high voltage test method

corresponding preventive measures are proposed;and the instructive suggestions are put forward for the safe and reliable operation of similar equipment.

关键词

电容式电压互感器（CVT）击穿高压试验故障分析防范措施

Keywords

capacitor voltage transformer（CVT）breakdownhigh voltage testfault analysispreventive measures

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