即当线路出现故障，继电保护使断路器跳闸后，自动重合闸装置经短时间间隔后使断路器重新合上。
That is, when the line failure, the relay circuit breaker tripping, the device auto-reclosing after a short time interval, so that a re-breaker.
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.
实时记录事故状态、开关跳闸顺序及间隔时间，提高了大型发电厂的运行管理水平。
The accident state, the sequence of tripping operation of switch and the interval of time could be recorded at real-time. The level of operating management of large power plant could be increased.
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