名词
中文翻译：无负载开关
同义词：
['无负载断路器，无负载切换器例句：1. The no-load switch is used to prevent power from flowing when the circuit is open.（无负载开关用于在电路断开时防止电源流动。）']
例句：
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1. The no-load switch is used to prevent power from flowing when the circuit is open.
无负载开关用于在电路断开时防止电源流动。
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2.During maintenance, the no-load switch is turned off to avoid damaging equipment.
维护期间，将无负载开关关闭以避免损坏设备。
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3.The no-load switch can be found on most electrical panels, allowing for easy switching without affecting the circuit.
大多数电气面板上都有无负载开关，便于进行切换，而不会影响到电路。