Condition Diagnosis by the Complex Accelerating Degradation for Fault Prediction & Estimation of Reliability on the Traction Motor - Dielectric loss and PD Properties according to High Voltage

견인전동기의 고강예측 및 신뢰성 평가를 위한 복합가속열화 상태진단 - 고전압 인가에 따른 유전손실 및 부분방전 특성 연구

In this paper, the complex accelerating degradation of traction motor driven with VVVF controlled inverter were performed on the form coil samples with the 200 Class insulation system. in order to evaluate the reliability and the long-term life. After aging, the dielectric and PD properties were investigated on the 10 cycles aging sample in the range of $20{\sim}160[^{\circ}C]$ and AC $250{\sim}2250[V]$ to diagnosis the condition of end-life and find the dominative factors of degradation.