华电技术 ›› 2014, Vol. 36 ›› Issue (1): 63-65.

• 技术交流 • 上一篇    下一篇

500kV线路开关误动原因分析及预控措施

  

  1. (四川广安发电有限责任公司,四川广安〓638017)
  • 出版日期:2014-01-25 发布日期:2014-05-19

Analysis on reasons of maloperation of 500kV line sweitch and precontrol measures

  1. (Sichuan Guang’an Power Generation Company Limited, Guang’an 638017, China)
  • Online:2014-01-25 Published:2014-05-19

摘要: 摘要:介绍了某电厂500kV系统运行方式,论述了500kV线路保护和600MW机组保护配置情况,分析了线路开关误动作的事故经过及产生原因,提出了预控措施。

关键词: 关键词:开关偷跳, 电缆积粉自燃, 原因分析, 预控措施

Abstract: Abstract:The operation mode of 500kV system of a power plant was introduced. The configurations of the 500kV line protection and the 600MW unit protection were expounded. The process of the line switch maloperation accident and the reasons of the accident were analyzed, and the precontrol measures were put forward.

Key words: Keywords:switch trip without fault, selfignition of pulverized coal deposits on cable, reason analysis, precontrol measure