广东电力2018，Vol.31Issue(2)：95-99,5.DOI:10.3969/j.issn.1007-290X.2018.002.015
110kV桥断路器保护整定原则的改进
Improvement of Protection Setting Principles of 110 kV Bridge Breaker
张少凡 1蔡燕春 1杨咏梅1
作者信息
- 1. 广州供电局有限公司,广东 广州510620
- 折叠
摘要
Abstract
Current setting for 1 1 0 kV bridge breaker refers to setting principles of backup protection at the high voltage side of 1 1 0 kV transformer,which may cause misoperation.Therefore,this paper analyzes reasons for misopertion during the period of loop closing operation of the bridge breaker protection and presents setting principles for calculating setting values of protective currents of the breaker according to 1.1 times of ampacity of the 1 1 0 kV line.Meanwhile,it makes analysis on improved setting principles in aspects of sensitivity,selectivity and misoperation prevention of protection.Analysis results indicate protection of the bridge breaker adjusted according to the improved principles can not only solve the problem of mi-soperation in the process of loop closing but also meet demands of selectivity and sensitivity,and can be put into operation for long term.关键词
桥断路器保护/整定原则/合环转电/误动Key words
bridge breaker protection/setting principle/loop closing operation/misoperation分类
信息技术与安全科学引用本文复制引用
张少凡,蔡燕春,杨咏梅..110kV桥断路器保护整定原则的改进[J].广东电力,2018,31(2):95-99,5.
