When the unit is ready to accept load, the auxiliary power system is transferred from the start-up to the unitsource.
当机组准备带负荷时，厂用电系统从起动电源切换到机组电源。
2
Some units in recent years have been built without the unitsource, with the auxiliaries being supplied from the start-up source for all operating conditions.
近年来有些机组建成不带单元电源，辅助设备由全工况的起动电源供电。
3
In this case, the target files are the directories containing compiled source files and corresponding unit test files.