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【Daily Question】Electrical Technology 2019-2-16

2019-02-16View Original

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For a certain current transformer, when the wire under test passes directly through the hole, its transformation ratio is 600/5A; if the wire under test is wound around the hole 3 times, then its transformation ratio should be . A. 600/5    B. 1800/5    C. 200/5C

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