华电技术 ›› 2010, Vol. 32 ›› Issue (7): 49-50.

• 技术交流 • 上一篇    下一篇

500kV开关失灵启动信号事故分析及处理对策

陆均民   

  1. 浙江省电力建设有限公司,浙江宁波315010
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-07-25 发布日期:2010-07-25

Analysis and countermeasures on accident caused by incorrect starting signal of 500kV circuit breaker failure

LU Junmin   

  1. Zhejiang Province Electric Power Construction Corporation Limited, Ningbo 315010, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-07-25 Published:2010-07-25

摘要: 介绍了桐柏抽水蓄能电站主变压器保护非正常收到500kV开关失灵启动信号事故的经过,对事故发生的原因进行了分析,采取了相应的处理措施后,主变压器保护工作恢复了正常。

关键词: 主变压器保护, 开关失灵, 改进措施

Abstract: In Tongbai Pumped Storage Power Plant, the main transformer protection incorrectly received the starting signal of 500kV circuit breaker failure several times, and which caused the breaker incorrectly tripped. The process of the accident was introduced, and the reasons of the accident were analyzed. After the relevant countermeasures were adopted, the normal operation of the main transformer protection was recovered.

Key words: main transformer protection, circuit breaker failure, improvement measure