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.
设计了一种集成电路型具有二次五次谐波制动的变压器差动继电器。
An integrated-circuit transformer differential relay including secondary and fifth harmonics suppressor is designed.
数字仿真结果表明,本方法可准确识别故障电流和励磁涌流,即使在空载合闸于内部故障时,保护继电器也能迅速可靠动作,避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
应用推荐