A Single Phase Fault Location Method in Double Star Shunt Capacitor Bank

DING Li; DENG Xin; WANG Wanchun; CHEN Jiansong

doi:10.14044/j.1674-1757.pcrpc.2020.04.024

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A Single Phase Fault Location Method in Double Star Shunt Capacitor Bank

更新时间：2024-09-14

- A Single Phase Fault Location Method in Double Star Shunt Capacitor Bank
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 4, Pages: 133-137(2020)
- 作者机构：
  
  南京南瑞继保电气有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.04.024
  CLC： TM53
- Published：2020，
- 稿件说明：
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[1]丁力,邓鑫,王万纯,陈建松.一种双星形并联电容器组单相故障定位方法[J].电力电容器与无功补偿,2020,41(04):133-137.

DING LI, DENG XIN, WANG WANCHUN, et al. A Single Phase Fault Location Method in Double Star Shunt Capacitor Bank. [J]. Power capacitor & reactive power compensation, 2020, 41(4): 133-137.
[1]丁力,邓鑫,王万纯,陈建松.一种双星形并联电容器组单相故障定位方法[J].电力电容器与无功补偿,2020,41(04):133-137. DOI： 10.14044/j.1674-1757.pcrpc.2020.04.024.

DING LI, DENG XIN, WANG WANCHUN, et al. A Single Phase Fault Location Method in Double Star Shunt Capacitor Bank. [J]. Power capacitor & reactive power compensation, 2020, 41(4): 133-137. DOI： 10.14044/j.1674-1757.pcrpc.2020.04.024.

摘要

本文针对双星形并联电容器组故障定位存在的问题

提出了一种基于中性点不平衡电流保护的双星形并联电容器组单相故障定位方法

该方法通过分析中性点不平衡电流与故障相电流的相位与幅值关系

快速定位和判断故障电容器的相别、故障分支以及故障电容器单元个数

可解决此类并联电容器组单相故障时故障点不直观、检修效率低的问题

并通过PSCAD仿真验证了此方法的正确性。

Abstract

In view of the problem of fault location in double star shunt capacitor bank

a kind of single phase fault location method based on neutral unbalance current in double star shunt capacitor bank is propsoed in this paper.The method can

by analyzing the relation between phaseand amplitude of unbalance current and fault current of the neutral point

quickly and intuitively locate the phase of the faulty capacitor

fault branch and number of faulty capacitor units

can solve such problem as no intuitive and low efficiency of the fault point of such shunt capacitor bank in the single phase fault and the the correctness of the method is varified by the PSCAD simulation.

关键词

并联电容器故障定位中性点不平衡电流熔丝

Keywords

shunt capacitor bankfault locationneutral unbalance currentfuse

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Related Institution

Bayannur power supply company,Inner Mongolia Autonomous Region Bayannur

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