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Flashcards in Electrical Deck (19)
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1
Q

How is the electrical system managed when a fault occurs

A

The electrical system monitors itself for faults and automatically disconnects a Generator bus from its power source when electrical power is out of limits

2
Q

What is the normal source of power for TRs1 and 2

A

Respective AC TRANSFER buses

3
Q

What is the “backup” source of power for DC Bus 1

A
#2 TR
?(#3 tr)?
4
Q

How does the TR3 disconnect relay normally function

A

Automatically opens during an A/P or F/D approach at glide slope capture

5
Q

What is the power source for the Hot Battery Bus when all aircraft buses are powered(700)

A

Battery charger (?)

6
Q

What is the normal source of power for the Battery Bus

A

TR3

7
Q

What is the alternate source of power for the Hot Battery Bus when the normal power source is not available

A

Battery

8
Q

What is the purpose of the CSD

A

Change variable engine speed into constant generator drive speed

9
Q

Which of the following must be accomplished to check the battery condition

A

Turn on the battery switch, place DC meter selector to BAT, check volts within limits

10
Q

Turning the Battery switch ON______

A

?

Provides the only means to power Standby Buses from the Battery

11
Q

Which statement describes establishing power to the Ground Service Bus on the ground

A

GEN OFF BUS lights on, GRD service switch ON

12
Q

What does an illuminated CSD HIGH OIL TEMP light indicate

A

CSD oil temperature exceeds operating limits

13
Q

With a loss of all generators, a fully charged battery can supply power to the standby buses for at least

A

30 minutes

14
Q

A ground service bus control switch, labeled “GROUND SERVICE” is located on the

A

Forward flight attendant panel

15
Q

What is the minimum battery voltage for an APU start during the preflight

A

23 volts

16
Q

When a CSD LOW OIL PRESSURE or HIGH OIL TEMP light comes on, the ________system annunciator and Master Caution lights illuminate

A

ELEC

17
Q

When a 700 model IDG is operating and the IDG breaker is closed, the IDG output is connected to

A

Its respective Transfer Bus

18
Q

What is the maximum single engine drive generator load for an 800 model aircraft on the ground

A

75kva-215 amps

19
Q

The DRIVE light for an IDG illuminates when____(7,8,9)

A

A generator DRIVE malfunction occurs