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§11—1 主断路器的用途和技术参数主断路器是电力机车上最重要构控制和保护设备。它位于机车中部变压器室顶盖上,用来闭合和断开机车的交流高压电源电路。主断路器在电力机车上起两种作用:其一是控制作用。根据机车运行的需要,将交流高压电源引入或退出运行;其二是保护作用,当机车上的电力设备或线路发生故障时快速切除交流高压电源,保证故障范围尽量
§11-1 Main Circuit Breaker Usage and Technical Parameters The main circuit breaker is the most important control and protection equipment on the electric locomotive. It is located in the locomotive central transformer room roof, used to close and disconnect the locomotive AC high-voltage power circuit. The main circuit breakers in the electric locomotive play two roles: One is the control role. According to the needs of the locomotive operation, the exchange of high-voltage power supply into or out of operation; the second is the protection of the locomotive when the power equipment or lines quickly cut off the exchange of high-voltage power supply, to ensure that the fault range as far as possible