Huadian Technology ›› 2010, Vol. 32 ›› Issue (4): 39-41.

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Reformation of protection circuit in emergency trip system

LIU Weixing   

  1. Guangdong Yuejia Electric Power Corporation Limited, Meizhou 514032, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-04-25 Published:2010-04-25

Abstract: This paper analyzed the potential safety hazard caused by the problem which the field outage signal of the emergency trip system (ETS) of #5 and #6 units in Meixian Power Plant was not separated with the protection switch. The pertinent solving method was put forward, and the security of the whole emergency trip system was enhanced.

Key words: emergency trip system (ETS), protection circuit, potential safety hazard, reformation