Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07a
- /
- Pages.449-451
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- 1999
A Study on the Evaluation of Reliability and Expected Life for the Insulation System of Traction Motors in Urban Transit E.M.U
철도차량용 견인전동기의 수명예측 및 절연신뢰성 평가 방법에 관한 연구
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Wang, Jong-Bae
(Korea Railroad Research Institute)
;
- Kim, Sang-Keol (Kwangwoon Univ.) ;
- Lee, Heon-Don (Kwangwoon Univ.) ;
- Oh, Hyun-Seok (Kwangwoon Univ.) ;
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Kim, Ki-Joon
(Junior College of Inchon)
- Published : 1999.07.19
Abstract
When the traction motor for urban transit E.M.U is driven with VVVF controlled inverter, the insulation degradation factors on the 200 Class insulation system of VPI process are analyzed with considering dielectric, mechanical properties, thermal stability, chemical resistivity and compatibility. A new test method of complex accelerating degradation is proposed to evaluate the insulation reliability and the long-term life including harmonic loss and transient surge stress due to PWM inverter drive.
Keywords