... 手动、自动操纵时势故信号 Fault signal in manual/automatic operation 保护掉闸 Protective trip 控制掉闸 Control trip ...
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This ensures that the only protective device to trip is the one nearest to the fault.
还可以确保惟一跳闸的保护装置就是离故障点最近的装置。
The protective relay is a sensing device, which senses the fault, determines its location and then send command to the proper circuit breaker by closing its trip coil.
保护继电器是一个传感装置，感官的过错，确定其位置，然后发送命令关闭其旅行线圈到正确的断路器。
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