检查热继电器是否跳闸。

Check the hot relay whether is cut.

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对于后备保护装置防止高阻抗接地故障，将配置一只双极方向过电流继电器，同瞬时跳闸附件的时间成反比。

For backup protection against high resistive ground faults, there will be a dual polarized directional overcurrent relay, inverse time with instantaneous trip attachment.

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使用者可将继电器接地故障跳闸电流设置为高于最高值几毫安，以准确测量系统充电。

User is able to set the ground fault trip current of the relay just milliamps above the highest level, to accurately measure the system charging.

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