unit ready meaning in English

单元准备好

First start sensor a first start sensor is an electronic device within some paralleling equipment that senses generator set and bus voltage and frequency , and determines whether or not a generator set is the first unit ready to close to the bus following a call to start under " black start " conditions
首启动传感器首启动传感器是应用于某些并联设备中的电子装置，功能是感知发电机组和母排的电压、频率，判断哪个机组在接到“黑启动”信号后第一个可以合到母排。