Electrical System

Question 1

Which components supply electrical power to the UH72? (3)

Answer 1

Starters/Generators, EPU, Battery

Question 2

Which component recharges the battery when the engines are running?

Answer 2

Starter/Generator

Question 3

When operated by the battery, how many VDC does the electrical power supply system supply to the airborne system?

Answer 3

24

Question 4

Momentarily placing the BAT MSTR switch to the ENGAGE position connects the battery to then (x) and (y)

Answer 4

Main bus 1, main bus 2

Question 5

On engine start, the ENG START switch disengages at 40% N1 and the generator is automatically connected to the electrical system when N1 is > (x)%?

Answer 5

40

Question 6

What are the 3 main sub systems of the Electrical system?

Answer 6

Supply, Distribution, Consumers

Question 7

What is the primary function of the GCU?

Answer 7

Voltage Regulation

Question 8

The minimum power required to start the UH72A is (x) Volt?

Answer 8

23.5

Question 9

When operated by the generators, how many VDC does the electrical power supply system supply to the airborne electrical system?

Answer 9

28.5

Question 10

A separate power module (battery) supplies 24VDC as emergency power for the emergency lighting system and the (x)

Answer 10

Standby Horizon