断路器合闸电阻有时价格昂贵且不可靠。
Circuit breaker closing resistors sometimes are expensive and unreliable.
包括线路断路器不装合闸电阻，只靠两端避雷器保护时过电压的特点，避雷器的工况及绝缘配合等。
The switching surge phenomena caused by line energization with out closing resistors but with MOA at both ends of the line, MOA's working conditions and insulation coordination are included.
通过对断路器主触头与辅助触头的动作情况进行分析，提出了一种不用拆开合闸电阻与主触头的连接线就可以测量合闸电阻的方法，而且可以同时测出合闸电阻的提前合闸时间。
In this paper, the abnormal phenomenon of the closing time of a 500 kV circuit breaker was analyzed, and actions taken to avoid the condition in the other sites were put forward.
通过对断路器主触头与辅助触头的动作情况进行分析，提出了一种不用拆开合闸电阻与主触头的连接线就可以测量合闸电阻的方法，而且可以同时测出合闸电阻的提前合闸时间。
In this paper, the abnormal phenomenon of the closing time of a 500 kV circuit breaker was analyzed, and actions taken to avoid the condition in the other sites were put forward.
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