excitation-loss relay

例句：

1. 1.The excitation-loss relay is used to protect the power system from overloading.
   激励损失继电器用于保护电力系统免受过载。
2. 2.The excitation-loss relay is a critical component in the power system protection system.
   激励损失继电器是电力系统保护系统中的关键组件。
3. 3. The excitation-loss relay is used to detect and prevent faults in the power system.
   激励损失继电器用于检测和预防电力系统中的故障。