?继电器操作跳闸

... Relay must-operate value 继电器保证启动值 Relay act trip 继电器操作跳闸 Relay overrun 继电器超限运行 ...

?继电器操动跳闸

... relay act trip ==>继电器操动跳闸 ... relay housing ==>继电器壳,继电器外壳,继电器罩,继电器室 relay hum ==> 继电器哼声 ...