单项选择题
A.Ammeter and changeover switch B.Power factor meter C.Synchroscope D.Reverse sequence relay
（）is used to control, modulate, monitor and protect gen...
单项选择题（）is used to control, modulate, monitor and protect generator set.
A.Control panel B.Load panel C.Paralleling panel D.Busbar
（）is not a part of the main switchboard.A.BusbarB.Load ...
单项选择题（）is not a part of the main switchboard.
A.Busbar B.Load panel of main generator C.Paralleling panel D.Shore connection box
（）is not a part of the main switch board.A.Control pane...
单项选择题（）is not a part of the main switch board.
A.Control panel of main generator B.Control panel of emergency generator C.Paralleling panel D.Load panel of main generator
