短路冲击电流

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短路发生经过约半个周期后(当f=50Hz时,此时间约为0.01秒),短路电流(包括周期分量和直流分量)达到最大值,称为短路冲击电流。常用稳态短路电流幅值的倍数来表示,约1.8~1.9倍。

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