Some new displays have a circuit breaker that trips in case there is a problem with the power supply.
一些新式的显示器有一个断路器，如果电源出现问题则会断开。
Is Each PKS node have a dedicated circuit breaker. Redundant devices should have dual power supply?
是否每个PKS节点在配电盘上均有单独的断路器，冗余节点应配两路电源？
Through cause analysis, the authors believe the operational power supply failure leading to the disability of actuator of the breaker may be the possible cause.
分析了事故原因，指出操作电源故障致使操作机构不能正常动作是事故的可能起因。
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