Huadian Technology ›› 2013, Vol. 35 ›› Issue (12): 77-79.

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Case analysis of incorrect action of main transformer differential protection

  

  1. (Guoneng Biomass Power Generation Group Company Limited, Beijing 100083, China)
  • Online:2013-12-25 Published:2014-02-19

Abstract:

Abstract:Taking the incorrect action of the main transformer differential protection of a power plant as study object, the principle and functions of the RCS9671C transformer differential protection device and the current transformer antiopen circuit protection device, which are made in NR Electric Corporation Limited , were introduced. Combining with practical site situation, the reasons of incorrect action of the main transformer differential protection were analyzed, and televant antiaccident measures were proposed.

Key words: Key words:transformer, differential protection, current transformer, antiopen circuit protection, antiaccident measure