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A Study on the Condition Diagnosis for the Stator Coil of Traction Motor by Transient Surge  

박현준 (한국철도기술연구원 철도전기연구팀)
장동욱 (한국철도기술연구원 철도전기연구팀)
김길동 (한국철도기술연구원 철도전기연구팀)
최종선 (홍익대 전기정보제어공학과)
김정수 (홍익대 전기정보제어공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.8, no.3, 2003 , pp. 247-252 More about this Journal
Abstract
Aging and failure of motor insulation depend on the stresses imposed on it. The insulation life time depends on the severity of the stresses. The electrical aging by transient surge is very important to traction motor in EMU(electric multiple unit). This paper presents the insulation characteristics of stator coil by transient surge from inverter. There are several nondestructive tests available for checking the condition of motor insulation, the probable extent of aging, and the rate of which aging is taking place. So the insulation characteristics of stator coil were each analyzed by measurement of leakage current, dielectric loss(tan $\delta$), capacitance, polarization index(PI) and partial discharge. The method of diagnosis is able to analyze the aging condition and predict the life of the traction motor in EMU.
Keywords
transient surge; stator coil; condition diagnosis; traction motor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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