保护跳闸回路隐性缺陷分析及改进措施

华电技术 ›› 2013, Vol. 35 ›› Issue (4): 37-39.

保护跳闸回路隐性缺陷分析及改进措施

刘兵

(华电贵州黔源电力股份有限公司，贵州贵阳550002)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-04-25 发布日期:2013-04-25

Analysis on hidden defects of protection trip circuit and improvement measures

LIU Bing

(Huadian Guizhou Qianyuan Power Company Limited, Guiyang 550002, China)

Received:1900-01-01 Revised:1900-01-01 Online:2013-04-25 Published:2013-04-25

摘要/Abstract

摘要： 以一起变压器保护出口跳闸回路因自保持设计不当引起的保护装置异常损坏为例，分析了损坏原因并对同类型自保持回路的设计缺陷进行了彻底处理。经过现场分析和模拟试验，验证了判断、分析和问题处理的正确性，供较早投入运行的同类型发电机、变压器保护装置维护时参考。

关键词: 保护跳闸回路, 出口跳闸, 隐性缺陷, 自保持, 定期检查

Abstract: Taking an abnormal damage of the protection device of a transformer caused by improper selfhold design of the protection outlet trip circuit as example, the reasons of the damage were analyzed, and the design defects of the same selfhold circuits were treated thoroughly. The correctness of the judge, the analysis and the problem treatment were verified by field analysis and simulation test. The results in this paper can be used as reference in maintenance of protection devices of similar generators and transformers put into operation earlier.

Key words: protection trip circuit, outlet trip, hidden defect, self-hold, periodic inspection

刘兵. 保护跳闸回路隐性缺陷分析及改进措施[J]. 华电技术, 2013, 35(4): 37-39.

LIU Bing. Analysis on hidden defects of protection trip circuit and improvement measures[J]. Huadian Technology, 2013, 35(4): 37-39.

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