华电技术 ›› 2013, Vol. 35 ›› Issue (10): 46-48.

• 技术交流 • 上一篇    下一篇

500kV送出线路跳闸时机组安全停机方案

  

  1. (内蒙古大唐国际托克托发电有限责任公司 ,内蒙古托克托〓010206)
  • 出版日期:2013-10-25 发布日期:2013-11-25

Safe shutdown scheme of power units after 500kV output line tripped

  1. (Inner Mongolia Datang International Togtoh Power Generation Company Limited, Togtoh 010206, China)
  • Online:2013-10-25 Published:2013-11-25

摘要: 摘要:2012年冬季出现了极端雨雪天气,导致托电公司3条500kV送出线路相继跳闸。介绍了线路跳闸前全厂的运行方式以及线路跳闸的处理过程,探讨了500kV送出线路部分跳闸或全部跳闸时保证机组安全、有序停运,防止厂用电、厂用汽全失的措施,避免了机组设备的损坏。

关键词: 关键词:线路跳闸, 厂用电, 安全停机, 保安电源, 应急预案

Abstract: Abstract:Extreme rain and snow weather occurred at the winter of 2012, and this caused three 500kV output transmission lines of Togtoh Power Generation Company Limited tripped successively. The operation mode of companywide units before the lines tripped and the treatment process of the line tripout accident were introduced. The measures to ensure the units to stop safely and orderly and to prevent the auxiliary power system and auxiliary steam system to be all failure after partial or all 500kV output lines tripped were discussed, which are helpful to avoid damage of unit equipments.

Key words: Key words:line tripping, auxiliary power system, safe shutdown, emergency power supply, emergency plan