A Comparative Study of Current and Voltage Transients on a Distribution Transformer Due To Capacitor Switching
semanticscholar(2012)
摘要
A high voltage capacitor is relatively frequently switched during the periods of the system operations. The distribution transformers are subjected to many stresses during normal and abnormal operations. In this paper we simulate a portion of the distribution network of Durgapur Steel Plant using MATLAB 7.7 and observe the effects of capacitor switching events on transformer terminal at different instants. Simulations of capacitor switching transients show significant disturbances in HV transformers which illustrate cause of transformer failure due to matching of transient frequency to the natural frequency of transformer. This paper is intended to alert the industries from the impact of first transient phenomena on transformer which is the real cause of failure of transformer of above said
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