철도차량용 주변압기 고주파 전달특성 접근 방법

The effective suppression of the overvoltage due to the surge phenomenon is so important as the abnormal electric/electronic equipment damages cause the catastrophic accident in the railway. In this paper, the rail vehicles main transformer high frequency transfer characteristic caused by overvoltage that using the single-phase transformer (1kVA) had surge short circuit test. Measurements and modeling to predict the result of this phenomenon is caused by the estimation method and the model car that you have the main transformer for validity when applied to investigate.