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  1. 一台Y/ -11变压器,在差动保护带负荷检查时,测得Y侧电流互感 …

    一台Y/ -11变压器,在差动保护带负荷检查时,测得Y侧电流互感器电流相位关系为Ia本应超前Ic240度,现超前60度,相差180度,说明Ia和Ic极性相反了。

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