Switchboard and Switchgear

The LV switchboard consists of these components EXCEPT

• Capacitor Bank

• Inductor Bank

• Instrument Transformer

• MCCB

The switchboard with high current capacity uses ……… as its main breaker.

• ACB

• VCB

• MCCB

• HRC

The busbar system consists mainly of these bars EXCEPT

• Mains

• Panels

• Earth

• Control

“Each phase of busbar is enclosed by an individual enclosure and separated from adjacent by air insulation space”. This arrangement is known as

• Non-segregated phase

• Segregated phase

• Non-isolated phase

• Isolated phase

…….. is a switching device used to couple the two busbar systems.

• Bus Tie

• Bus Coupler 

• Bus Bank

• Bus Connector

Which of these are not the component of Capacitor Bank?

• P.F Regulator

• Capacitors

• Inductors

• Indicator lamps

LV switchboard metering can be divided into two groups which are …

• Voltage and Load Indicators

• Current and Load Indicators

• Voltage and Frequency Indicators

• Power and Load Indicators

Which of these are NOT the switchboard component layout?

• Wiring diagram

• Pictorial diagram

• Single line diagram

• Schematic diagram

Emergency switchboard are used to supply power to …………

• Essential Load

• Non-essential Load

• Common Load

• Normal Load

Instrument panel interlock uses ….. interlock which allows to operates any 2 out of 3 keys.

• Electrical

• Mechanical

• Automatic

• Pneumatic