Analysis of Protective Action Cause and Improvement Measures for 35 kV Assembled Capacitor

ZHANG Bo; CHEN Shuiyao; ZOU Hui; ZHOU Jianping; LI Binshuai; LAI Shangfeng; CHEN Caixia

doi:10.14044/j.1674-1757.pcrpc.2020.02.007

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Analysis of Protective Action Cause and Improvement Measures for 35 kV Assembled Capacitor

更新时间：2024-09-14

- Analysis of Protective Action Cause and Improvement Measures for 35 kV Assembled Capacitor
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 2, Pages: 38-41(2020)
- 作者机构：
  
  国网浙江省电力有限公司检修分公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.02.007
  CLC： TM53
- Published：2020，
- 稿件说明：
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[1]张波,陈水耀,邹晖,周建平,李斌帅,赖尚峰,陈彩霞.35 kV集合式电容器保护动作原因分析及整改措施[J].电力电容器与无功补偿,2020,41(02):38-41.

ZHANG BO, CHEN SHUIYAO, ZOU HUI, et al. Analysis of Protective Action Cause and Improvement Measures for 35 kV Assembled Capacitor. [J]. Power capacitor & reactive power compensation, 2020, 41(2): 38-41.
[1]张波,陈水耀,邹晖,周建平,李斌帅,赖尚峰,陈彩霞.35 kV集合式电容器保护动作原因分析及整改措施[J].电力电容器与无功补偿,2020,41(02):38-41. DOI： 10.14044/j.1674-1757.pcrpc.2020.02.007.

ZHANG BO, CHEN SHUIYAO, ZOU HUI, et al. Analysis of Protective Action Cause and Improvement Measures for 35 kV Assembled Capacitor. [J]. Power capacitor & reactive power compensation, 2020, 41(2): 38-41. DOI： 10.14044/j.1674-1757.pcrpc.2020.02.007.

摘要

随着集合式电容器的大量使用

集合式电容器故障也逐渐增多。本文针对一起集合式电容器差压保护误动案例

通过一次设备检查、定值计算和差压计算等3个方面进行详细的分析

发现该类型集合式电容器存在差压保护灵敏度不足问题。最后通过采取对电容器保护方式改造、提高保护定值裕度、降低保护误动等措施降低集合式电容器因差压保护灵敏度不足问题而引起的故障。

Abstract

With the extensive use of the assembled capacitors

the fault of them increases gradually.In view of protective action example of the capacitor

it is found that insufficient differential protection sensitivity is existed in the capacitor throughout detailed analysis from such three aspects as inspection of primary equipment

setting calculation and differential voltage calculation.Finally

such measures as modifying protectionmode

improving the protection setting margin and reducing protection mal-operation are taken so to reduce the fault of the capacitor due to insufficient differential voltage protection sensitivity.

关键词

集合式电容器差压保护桥差保护

Keywords

assembled capacitordifferential protectionbridge differential voltage protection

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