A Study on The Insulation Diagnostic and Life Evaluation for the Pumped Storage Generator/Motor

양수 발전 전동기 고정자 권선 절연진단 및 수명평가에 관한 연구

  • 박종정 (전력연구원 수화력발전연구실) ;
  • 김희동 (전력연구원 수화력발전연구실) ;
  • 이영준 (전력연구원 수화력발전연구실) ;
  • 주영호 (전력연구원 수화력발전연구실) ;
  • 한상옥 (충남대학교)
  • Published : 1998.07.20

Abstract

In pumped storage Generator-motor stator windings gradually deteriorates due to mechanist, thermal, electrical stresses. These stresses combine to result in loose windings, delamination of the stator insulation and/or electrical tracking of the endwinding, all of which can lead to stator insulation failures. Since the degration of generator-motor is gradually occurred, regular inspection system is necessary to monitor degrading. The result of this diagnosis is a basic for the maintxnance of generator-motor.

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