high speed directional overcurrent relay

例句：

1. 1. The high-speed directional overcurrent relay is crucial for the safe operationof electrical equipment.
   高速方向过电流继电器对于电气设备的安全可靠运行至关重要。
2. 2. The engineer useda high-speed directional overcurrentrelay to protect the power grid from potentialfaults.
   工程师使用高速方向过电流继电器来保护电网免受潜在故障的影响。
3. 3. Thehigh-speed directional overcurrent relaywas designed to detect and prevent power outages during peak demand periods.
   高速方向过电流继电器被设计用来在需求高峰时段检测并预防电力中断。