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SkyWest CRJ Upgrade 2019 > 200 Electrical > Flashcards

Flashcards in 200 Electrical Deck (17):
1

What are the components of an IDG?

Integrated drive generator
CSD: shaft constant speed drive
Electric Generator : AC

2

What is HOTLOP?

High oil temp
Low oil pressure
Makes the IDG connect automatically

3

Can you reconnect an IDG in flight?

NOPE

4

What must an aircraft sense to use External AC?

Needs correct: Phase, Volt, and Frequency

5

What is powered when you select the AC switchlight?

AC BUS 1 & 2

6

What are GCUs and what do they do?

Provides system protection, voltage regulation, bus priority

7

What does the SERV Configuration give the aircraft?

Lights in the back and some power for cleaning

8

What is an ADG? Where is it?

Air-driven generator: AC power for critical flight systems
FWD Right side by nose gear

9

What are the two types of ADG power?

Wet: 250 KIAS
Dry: no speed limits Vmo MMO

10

When will the ADG auto deploy?

Loss of all AC power
Last AC power was internal
WOW
Parking brake released

11

What kind of batteries does the CRJ have? How many?

Lead Acid
2 DC batteries

12

What does the white CHARGER msg mean for the DC batteries?

When the aircraft is powered but the batteries aren’t charging
200 only

13

How long do you have power for on the DC batts if all AC and ADG fail? What is being powered in that situation?

30 minutes
BATT BUS and DC ESS BUS

14

Which two DC ties can close manually or automatic?

DC TIE 1 & 2

15

Which DC tie is manually closed only, and only by QRH direction? What do you have to ensure before closing this tie, in regards to other DC failures?

DC ESS TIE
Make sure no other DC failures when completing procedure, may lose all DC power

16

When do you use the DC external power? Where is it located?

Not used often
Below R engine

17

Taxing SE with the APU off will the AC UTIL BUS1 & 2 be load shed?

YES