fixed trip circuit breaker

例句：

1. 1.The fixed trip circuit breaker is used to protect the electrical system from overload.
   固定式三相断路器用于保护电气系统免受过载。
2. 2. The engineers were fixing the trip circuit breaker when the power went out.
   工程师们在修理三相断路器时，电力突然中断了。
3. 3. The fixed trip circuit breaker was a critical component in the electrical grid.
   固定式三相断路器是电网中的关键组件。