Huadian Technology ›› 2013, Vol. 35 ›› Issue (10): 33-35.

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Treatment measures of interrupt accident of water circulating system for auxiliary devices of Togtoh Power Generation Company Limited and prearranged plan

  

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

Abstract: Abstract:Due to the extreme rain and snow weather occurred at the winter of 2012, three 500kV output transmission lines of Togtoh Power Generation Company Limited tripped successively. The line tripout accident impacted on the water circulating frequency converter, which caused the circulating water supply of unit No.8 of project phase Ⅳ to interrupt instantly. The whole accident process was analyzed and summarized. A circulating water interruption handling scheme was proposed, and the control measures to prevent circulating water interruption accident were summarized.

Key words: Key words:steam turbine, circulating water, interrupt, frequency converter