Cause Analysis and Preventions on Local Overheating of High Voltage AC filter Capacitor

LIANG Tianming; YUAN Zhuofeng; SHI Yanhui

doi:10.14044/j.1674-1757.pcrpc.2015.06.011

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Cause Analysis and Preventions on Local Overheating of High Voltage AC filter Capacitor

更新时间：2024-09-14

- Cause Analysis and Preventions on Local Overheating of High Voltage AC filter Capacitor
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 36, Issue 6, Pages: 49-53(2015)
- 作者机构：
  
  南方电网超高压输电公司广州局
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2015.06.011
  CLC： TM53
- Published：2015，
- 稿件说明：
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[1]梁天明,袁焯锋,石延辉.高压交流滤波电容器局部过热诱因分析及预防[J].电力电容器与无功补偿,2015,36(06):49-53.

LIANG TIANMING, YUAN ZHUOFENG, SHI YANHUI. Cause Analysis and Preventions on Local Overheating of High Voltage AC filter Capacitor. [J]. Power capacitor & reactive power compensation, 2015, 36(6): 49-53.
[1]梁天明,袁焯锋,石延辉.高压交流滤波电容器局部过热诱因分析及预防[J].电力电容器与无功补偿,2015,36(06):49-53. DOI： 10.14044/j.1674-1757.pcrpc.2015.06.011.

LIANG TIANMING, YUAN ZHUOFENG, SHI YANHUI. Cause Analysis and Preventions on Local Overheating of High Voltage AC filter Capacitor. [J]. Power capacitor & reactive power compensation, 2015, 36(6): 49-53. DOI： 10.14044/j.1674-1757.pcrpc.2015.06.011.

摘要

针对交流滤波电容器局部过热问题

总结了电容器本体过热导致交流滤波器跳闸的典型故障特征。通过对故障电容器解剖分析

找出了电容器局部过热机理及诱因。指出红外诊断技术在定性电容器本体过热缺陷上的误区

提出了改进电容器的运维策略的具体建议

降低交流滤波器故障率

对电容器套管接头密封及安装工艺提供有益参考。

Abstract

As for the local overheating issue of AC filter capacitor

in this paper the typical fault features of AC filter tripping due to overheating of the capacitor is summarized.The mechanism and causes of the local overheating of capacitor is foundout through the disassembly and analysis of the faulty capacitor.The misunderstanding of infrared diagonsis technology in definding overheating defects of the capacitor proper is pointed out

the specific operation and maintenance strategy suggestion on the improvement of the capacitor and fault rate reduction of the AC filter are proposed

which provides valuable reference for the sealing and installation process of the bush joint of capacitor.

关键词

交流滤波器电容器过热红外诊断局部放电

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