A study of turbine acceleration generated following to AVR fault of Wolsong #1 main generator.

주발전기용 자동 전압조정기의 고장에 따른 터빈 가속도 발생 사고 검토

  • 장태희 (한전 월성원자력 본부 전기부장)
  • Published : 1992.07.23

Abstract

During normal operation of 100% FP Reactor power(TBN/GEN output:690MWe), several times of acceleration phenomena has been generated on the turbine generator-of Wolsong #1 NPP. It was concluded that the acceleration occured following big sudden drop of the terminal voltage of main generator due to AVR potentiometer fault. The cause of turbine acceleration is reviewed with a several records and demonstrated by computer simulation, also presents a countermeasure of its trouble.

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