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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详细分析了继电器抖动测试试验过程，以及在此试验过程中瞬时通断测量仪的作用。

This paper summarizes the relay twitter test in details, and explains the function of instantaneous switching instrument during this test.

youdao

详细分析了继电器抖动测试试验过程，以及在此试验过程中瞬时通断测量仪的作用。

This paper summarizes the relay twitter test in details, and explains the function of instantaneous switching instrument during this test.

youdao