QUESTIONS

WHAT IS DC POWER?

• The AC generator (sometimes called an alternator) produces three-phase 115-volt AC at 400 Hz.

• Direct current (DC) is one-directional flow of electric charge.

• DIRECT CURRENT

• ALTERNATING CURRENT

What is Transformer Rectifier Units (TRU)?

• The device that converts the AC power to DC power

• What is aircraft AC generator?

  The AC generator (sometimes called an alternator) produces three-phase 115-volt AC at 400 Hz

• A ram air turbine (RAT) is a small wind turbine that is connected to a hydraulic pump, or electrical generator, installed in an aircraft and used as a power source. The RAT generates power from the airstream by ram pressure due to the speed of the aircraft.

• The device that converts the DC power to AC power

What is the Ram Air Turbine (RAT)?

• Is a main source of Electrical system

• That converts AC power to DC

• is a small wind turbine that is connected to a hydraulic pump, or electrical generator, installed in an aircraft and used as a power source. The RAT generates power from the airstream by ram pressure due to the speed of the aircraft.

• is a type of battery

The main battery charger is

powered from...

• AC Utility bus 4

• AC Utility bus 2

• AC Utility bus 3

• AC Utility bus 1

How many volts provides a constant current in an airplane?

• 115V

• 400V

• 28V

• 32V

APU

• Availible Power Unit

• Auxiliary Power Unit

• Aircraft Power Unit

• Air Power Unit