大型电力变压器操作冲击试验的一点考虑

A Little Consideration of Switching Surge Test for Large Power Transformer

分析了500kV变压器进行操作冲击试验的现状，提出用直流励磁法代替传统的操作冲击励磁法，有助于提高试验结果的准确性．

This paper analyses the condition of switching surge tes1 for 500kV transformer and presents that it is helpful to improve the accuracy of the test result by exciting transformer with DC supply instead of the traditional switching impulse.