Electrical system

Question 1

How many IDGS

Answer 1

2 engine driven IDGS

Question 2

Each IDG Supplys what

Answer 2

115 VAC 400hz 3 Phases electrical power to 4 ac buses

Question 3

IDG fault lamp illuminates if

Answer 3

IDG oil overheats or the oil pressure drops below limits

Question 4

Engine Generator output is tripped off and removed for

Answer 4

-Over/Undervoltage
-over/undrfrequency
-Generator or Bus overcurrent
-Generator phase sequence

Question 5

APU Generator output is tripped off for

Answer 5

Over/Undervoltage
-over/undrfrequency
-Generator or Bus overcurrent
-Generator phase sequence

Question 6

AUTO Xfer

Answer 6

Used to disable automatic tranfer of the associated IDG
Off is white light
Fail-Amber light

Question 7

AC Ess Xfer

Answer 7

Used to switch essential bus feed from AC bus 1 to AC Bus 2.

Question 8

Emergency AC Power is provided to the aircraft using

Answer 8

Air Driven Generator

Question 9

ADG provides

Answer 9

3 phase 115AC, 400 hz with a rated output of 15Kva

Question 10

ADG will provide power until

Answer 10

Airspeed drops below 135

Question 11

ADG supplies power to

Answer 11

3B Hydraulic pump
flaps and slats
pitch trim channel 2

Question 12

How many Batteries are on the airplane

Answer 12

2 NICKEL-CADMIUM batteries

Question 13

What are the two batteries

Answer 13

-APU battery
Main Battery

Question 14

How many Volts are each battery

Answer 14

24VDC

Question 15

If total power loss how long will each battery supply power

Answer 15

apox 30 mins