Used for points and load current, closed loop current, no-load transformer and cable charging electric current.

用于分合负荷电流、闭环电流、空载变压器和电缆充电电流。

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Used for points and load current, closed loop current, no-load transformer and cable charging electric current, close short circuit current.

用于分合负荷电流，闭环电流，空载变压器和电缆充电电流，关合短路电流。

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