한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2008년도 춘계학술대회 논문집
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- Pages.1892-1896
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- 2008
서지전압에 의한 저압유도전동기의 절연평가
Insulation Evaluation of Low-voltage Induction Motors by Surge Voltages
초록
Inverter-fed induction motors (IFM) are prevalent in traction vehicles. However, the winding insulation of IFM is substantially more stressed than of line-powered motors by surge voltages. Consequently, the winding insulation of IFM should be estimated by surge voltages. Also, the weakness of coil insulation can be detected by the surge voltage test. This paper described the insulation evaluation of induction motors by application of surge voltages. A surge voltage generator with the maximum voltage of 5 kV and the selectable rise-time in ranges of
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