單項選擇題Insulation light is located on.() of main switchboard.

A.Paralleling panel
B.Load panel
C.Emergency generator control pane
D.Main generator control pane


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1.單項選擇題Synchrocope and synchro light are located on () of main switchboard.

A.load panel
B.emergency generator control panel
C.battery changing and discharging panel
D.paralleling panel

2.單項選擇題To () , the power is supplied by main switchboard directly not though sub-board.

A.save network cost
B.improve the reliability of supplying power to important load
C.prevent sequence reverse
D.increase the power factor of important load

3.單項選擇題()is not installed on the main switchboard.

A.Ammeter and changeover switch
B.Power factor meter
C.Synchroscope
D.Reverse sequence relay

4.單項選擇題()is used to control, modulate, monitor and protect generator set.

A.Control panel
B.Load panel
C.Paralleling panel
D.Busbar

5.單項選擇題()is not a part of the main switchboard.

A.Busbar
B.Load panel of main generator
C.Paralleling panel
D.Shore connection box