Elimination Protection Malfunction by Removal of External Fuse

XIA Chang-gen; YANG Fan

doi:10.14044/j.1674-1757.pcrpc.2012.03.013

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Elimination Protection Malfunction by Removal of External Fuse

更新时间：2024-09-14

- Elimination Protection Malfunction by Removal of External Fuse
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 33, Issue 3, Pages: 65-68(2012)
- 作者机构：
  
  中国南方电网超高压输电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2012.03.013
  CLC： TM53
- Published：2012，
- 稿件说明：
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[1]夏长根,杨帆.撤除外熔丝消除保护误动[J].电力电容器与无功补偿,2012,33(03):65-68.

XIA CHANG-GEN, YANG FAN. Elimination Protection Malfunction by Removal of External Fuse. [J]. Power capacitor & reactive power compensation, 2012, 33(3): 65-68.
[1]夏长根,杨帆.撤除外熔丝消除保护误动[J].电力电容器与无功补偿,2012,33(03):65-68. DOI： 10.14044/j.1674-1757.pcrpc.2012.03.013.

XIA CHANG-GEN, YANG FAN. Elimination Protection Malfunction by Removal of External Fuse. [J]. Power capacitor & reactive power compensation, 2012, 33(3): 65-68. DOI： 10.14044/j.1674-1757.pcrpc.2012.03.013.

摘要

分析了宝安站35 kV并联电容器外熔断器误动的原因

比较了外熔断器和内熔丝的运行特点。针对宝安站并联电容器的具体情况

分析了取消外熔丝、只使用内熔丝和继电保护的可行性

并以单芯电缆替换原先的外熔断器对电容器组进行改造

经过一年多时间运行检验

说明该方法有效可行

提高了电容器运行可靠性

减轻了运行维护工作量。

Abstract

The cause of malfunction of external fuse of 35 kV shunt capacitor at Bao’an station is analyzed and operating characteristics of external fuse and internal fuse is compared.For the specific circumstance of shunt capacitor at Bao’an station

the feasibility of removing external fuse and only using the internal fuse and relaying protection.The capacitor bank can be modified by way of replacing original external fuse with single core cable.Through more than one-year operation

it is proved that the method is feasible

the operation reliability is improved and the maintenance work is reduced.

关键词

电容器内熔丝外熔断器不等臂双星形接线不平衡电流保护

Keywords

capacitorinternal fuseexternal fuseunequal double star connectionunbalance current protection

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Discussion on Manufacture of Extended-foil Type High-voltage Shunt Capacitor with Internal Fuse Protection

Selection Principle and Basis of Overvoltage Multiple of the Protection Matching Element of Capacitor with Internal Fuse

Test Verification of Capacitor Internal Fuse Used in HVDC Transmission Project

Experimental Study of the External Fuses for High-voltage Shunt Capacitor Protection

The Deduce and Introduction to the Protection Formula of the Unbalance Current Bridge in Single-star Connection

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