instantaneous overcurrent relay
... instantaneous output 瞬时功率，瞬时出力 instantaneous overcurrent relay 瞬时过电流继电器 instantaneous overload 瞬时过载 ...
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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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