负序距离继电器的行为与变压器绕组的接线无关,所以它是作为变压器后备保护的距离继电器的最佳选择。
The negative sequence distance relay gets free from the winding connection of the transformer. So it is the best choice to use the kind of the distance relays for the transformer backup protection.
本文提出了电力变压器内部相间故障的分析方法,比较了距离继电器及其他后备保护在此故障时的灵敏度。
In this paper the method of analyzing the phase-to-phase faults in power transformers is presented. The sensitivities of distance relays and other back-up protections during the faults are compared.
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.
由两个主控制继电保护系统对各条500千伏传输线进行保护,该控制继电保护系统上装有一只后备继电器,以实现初级保护与二次保护。
Each 500 kV transmission line will be protected by two primary pilot relaying systems with a backup relaying to achieve primary and secondary protection.
由两个主控制继电保护系统对各条500千伏传输线进行保护,该控制继电保护系统上装有一只后备继电器,以实现初级保护与二次保护。
Each 500 kV transmission line will be protected by two primary pilot relaying systems with a backup relaying to achieve primary and secondary protection.
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