Failure Analysis on Capacitor for HVDC Project

YE Jianzhu; GUAN Chunwei; XIE Chao; SHI Yanhui; LIU Chuntao

doi:10.14044/j.1674-1757.pcrpc.2017.01.013

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Failure Analysis on Capacitor for HVDC Project

更新时间：2024-09-14

- Failure Analysis on Capacitor for HVDC Project
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 1, Pages: 71-75(2017)
- 作者机构：
  
  1. 中国南方电网特高压输电公司广州局
  2. 国网山东省电力公司青岛供电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.01.013
  CLC： TM53;TM721.1
- Published：2017，
- 稿件说明：
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[1]叶建铸,管春伟,谢超,石延辉,刘春涛.高压直流输电工程用电力电容器故障分析[J].电力电容器与无功补偿,2017,38(01):71-75.

YE JIANZHU, GUAN CHUNWEI, XIE CHAO, et al. Failure Analysis on Capacitor for HVDC Project. [J]. Power capacitor & reactive power compensation, 2017, 38(1): 71-75.
[1]叶建铸,管春伟,谢超,石延辉,刘春涛.高压直流输电工程用电力电容器故障分析[J].电力电容器与无功补偿,2017,38(01):71-75. DOI： 10.14044/j.1674-1757.pcrpc.2017.01.013.

YE JIANZHU, GUAN CHUNWEI, XIE CHAO, et al. Failure Analysis on Capacitor for HVDC Project. [J]. Power capacitor & reactive power compensation, 2017, 38(1): 71-75. DOI： 10.14044/j.1674-1757.pcrpc.2017.01.013.

摘要

针对高压直流输电工程中电容器的频发故障现象

对我国南方电网已投运的7回直流输电系统用电容器故障的种类和数量进行了统计分析

发现滤波电容器故障占有较大的比例。对滤波电容器接头发热、电容器渗漏油、电容器击穿导致电容值变化3类故障进行了研究

从工艺、结构、工程施工方面对电容器故障影响进行了较为详细的分析。通过分析

从技术规范和运行维护方面给出了改进建议

为高压现场维护人员和工程施工人员提供了参考。

Abstract

As for multiple faults of capacitor in HVDC transmission project

the kinds and quantity of the fault of capacitors for 7 circuits DC transmission system which are already in operation in China Southern Grid are analyzed statistically

and the results show that the fault of filter capacitor has major proportion.Such three types of faults of filter capacitor as joint heat

oil leakage and capacitance variations due to breakdown are studied. The influence of the capacitor fault is analyzed in detail from the aspects process

structure and engineering. Throughout the analysis

the improvement suggestion is given from the aspects of technical specification

operation and maintenance

which provides both the maintenance and construction personnel at site with reference.

关键词

电容器故障发热漏油

Keywords

capacitorfailureheatingoil leakage

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