简易可行的保护电源

A Simple and Feasible Power Supply for Use in Protection of Network

列举了3个变电站的事故实例,都是由于直流电源不可靠,导致继电保护失灵,造成停电范围扩大,从而提出了另一种保护电源。

The faults occurred in three substations are due to uncertainty of DC power supply, resulting in malfunction of relay protection and extending the scope of cut-off of supply. So a necessary method should lie carried out to solve the problem. There is an another protective power supply, which is similar to energy storage capacitor or storage battery.