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A Study on the Complex Accelerating Degradation and Condition Diagnosis of Traction Motor for Electric Railway

전기철도용 견인전동기의 복합가속열화 상태진단에 관한 연구

  • 왕종배 (한국철도기술연구원 철도안전성능시험인증센터 안전시스템연구팀)
  • Published : 2002.01.01

Abstract

In this study, the stator form-winding sample coils based on silicone resin and polyimide were made for fault prediction and reliability estimation on the C-Class(200$\^{C}$ ) insulation system of traction motors. The complex accelerative degradation was periodically performed during 10 cycles, which was composed of thermal stress, fast rising surge voltage, vibration, water immersion and overvoltage applying. After aging of 10 cycles, the condition diagnosis test such as insulation resistance '||'&'||' polarization index, capacitance '||'&'||' dielectric loss and partial discharge properties were investigated in the temperature range of 20 ∼ 160$\^{C}$. Relationship among condition diagnosis tests was analyzed to find a dominative degradation factor and an insulation state at end-life point.

Keywords

References

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