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当变压器外部故障时,有较大的穿越性短电流流过变压器,这时变压器的差动保护

单选题
2021-09-01 20:45
A、立即动作
B、延时动作
C、不应动作
D、短路时间长短而定
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正确答案
C

试题解析

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当变压器外部故障时,有较大的穿越性短路电流流过变压器,这时变压器的差动保护( )。
当变压器外部故障时,有较大的穿越性短电流流过变压器,这时变压器的差动保护
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当变压器外部故障时,有较大的穿越性短电流流过变压器,这时变压器的差动保护()。
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当变压器外部故障时,有较大的穿越性短路电流流过变压器,这时变压器的差动保护()。
当变压器外部故障时,有较大的穿越性短路电流流过变压器,这时变压器的差动保护()。
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