Combined with the main transformer tripping event in Dazhou bureau areas, the basic concepts of transformer remanence are introduced,modeling analyzes the influence of remanence on waveform of the main transformer, and finally the hazards of remanence on the main electricity equipment are pointed out, which has a certain engineering guiding significance.%文章结合达州局辖区内一起主变跳闸事件,介绍了变压器剩磁的基本概念,建模分析了剩磁对主变波形的影响,最后指出了剩磁对电力主设备的危害,具有一定的工程指导意义.
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