Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2006.11a
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- Pages.336-338
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- 2006
Characteristics of Insulation Diagnostic in Traction Motor Stator Windings
견인전동기 고정자 권선의 절연진단 특성
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Kim, Hee-Dong
(Korea Electric Power Research Institute)
;
- Kim, Chung-Hyo (Korea Electric Power Research Institute) ;
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Park, Young
(Korea Railroad Research Institute)
;
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Park, Hyun-June
(Korea Railroad Research Institute)
- Published : 2006.11.09
Abstract
Diagnostic tests are used to evaluate the insulation condition of stator windings in traction motor. These tests included ac current, tan delta and maximum partial discharge. The insulation condition of stator windings was assessed by three test items. The stator windings of traction motor were m good condition. After completing the diagnostic tests, the stator windings of traction motors were subjected to gradually increasing ac voltage, until the insulation punctured. No.5 stator windings failed near rated voltage of 18.9 kV. The breakdown voltage of No.1 stator windings was 13.0. The failure was located m a line-end coil at the exit from the core slot.