한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

철도차량 견인전동기의 상태진단 및 상시감시 기술

Condition Diagnosis & On-line Monitoring Technology on the Traction Motor for Railway Rolling Stock

  • 왕종배 (한국철도기술연구원 차량연구본부) ;
  • 변윤섭 (한국철도기술연구원 차량연구본부) ;
  • 백종현 (한국철도기술연구원 차량연구본부)
  • 발행 : 2000.10.13
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초록

This paper presents the technology of condition diagnosis & life estimation on insulation system of the traction motor. In the non-destructive methods for diagnosis of coil insulation state, residual dielectric strength is estimated by the D-map which consist of the partial discharge quantity Q and average degradation degree $\Delta$. In the operating history of machine, the N-Y life estimation method is based on the stop-starting numbers and operating times with considering each degradation factor by the thermal, electrical and heat-cycle stress. With the on-line conditioning monitoring on the currents of traction motors, detecting the abnormal operating state due to bearing faults, stator or armature faults, eccentricity related faults and broken rotor bars can be performed.

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