查询词典 phase-rotation relay

Theory analysis and simulation results show that the new phase selector can determine fault types properly and be used in transmission line protective relay.

理论分析和仿真计算表明，使用电压量的选相元件能够正确地判别各种故障类型，满足高压线路保护的需要。

Then the practical method of distance relay in open-phase running state is proposed after the detailed derivation and analysis on its characteristics.

对各种距离继电器在非全相状态下的动作特性进行了详细的推导及分析，最后得出了实用的非全相距离保护的实现方法。

Safe protector-Chiller includes current overload relay , high/low pressure , oil pressure , frozen prevention , time delay , and phase voltage protector , etc .

安全装置－冷水机装有电流过载保护，高低压擎，油压擎，防冰擎，电子时间延迟，电压保护等安全装置，当发生故障时，随即发出警号及显示故障原因。

In these cases, the mode of singlepole reclosing was set, and when single phase grounded fault occurred at the transmission line, all of protection relay operated correctly, and three phases of one breaker directly tripped at one time, and this breaker was not reclosed.

详细介绍了华中某500kV变电站两起典型的重合闸不正确动作事故，即在单重模式下，输电线路发生单相接地故障，保护装置均正确出口情况下，其中一个线路断路器直接三跳，未重合。

Three methods of judging gap Spark-over at power frequency spark-over test on the three phase combinative surge protector of TBP type were analyzed,namely change of indication on ammeter A1,A2 or operation of current relay.

通过对TBP系列三相组合式过电压保护器的工频放电试验，分析了三种判断间隙击穿放电的方法，即电流表A1指示是否有变化；电流表A2指示是否有变化；或电流继电器是否动作及其对放电电压值的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。