Standby Power System

Question 1

Standby Power System explained

Answer 1

• Supplies AC and D.C. power to important electrical components when normal AC power is not available from engine or AP generators
• The standby Power system uses the batteries (aux bat and bat)
• Uses a static inverter to supply power to these sources

Question 2

Batteries limitations

Answer 2

• With no other power sources available

- The batteries can supply power for a minimum of 60 minutes

Question 3

Battery power in emergency

Answer 3

• Supplies of power:
• DC standby bus
• The battery bus
• Static inverter

Question 4

The static inverter

Answer 4

-The static inverter changes 24 volt DC battery power to 115 bolt AC power to the AC standby bus

Question 5

Standby Power Switch

Answer 5

• In Auto, the standby busses and the battery bus are supplied power from their normal power sources
• If all sources of AC power removed, the standby power control unit automatically changes the standby system to battery power
• If position is off, AC and DC standby busses and battery bus are disconnected from all power sources, normal or battery

Question 6

Battery switch

Answer 6

• The battery switch is the other standby power control

- The on position always energises the switched hot battery bus

Question 7

Battery ON position

Answer 7

-The on position always energises the hit battery bus and the other circuits to automatically change to battery power if normal power is not available