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同步电机三相突然短路时,

单选题
2021-09-01 20:54
A、三相短路电流的稳态值中,除了周期性分量外,还含有非周期性分量
B、三相短路电流的每相瞬态电流中一定都含有非周期分量
C、三相短路电流的每相瞬态电流中不含有非周期分量
D、三相短路电流的每相瞬态电流中不一定都含有非周期分量
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正确答案
D

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