Systems 2 - Electrical system

Question 1

What type of electricity does the batteries provide

Answer 1

DC

Question 2

What type of electricity does the generators provide

Answer 2

AC

Question 3

The numbers in the circut breakers indicate?

Answer 3

The amount of amps that can flow through them

Question 4

What is the only way the DC primary busses can be provided with power:

Answer 4

AC power converted to DC

Question 5

In case of no AC power is converted to DC for the primary bus, what will happen in the engines?

Answer 5

Eng anti ice opens

Question 6

Blade de-ice require how many generators to provide enough power?

Answer 6

2

Question 7

Can the windshield antit-ice and backup pump be operated at the same time?

Answer 7

No - Backup pump will take priority

Question 8

GCU is short for?

Answer 8

Generator Control Units

Question 9

On ground, at what NG will the GCU take the Generator offline?

What is the % when in flight?

Answer 9

On ground 93-95%

In flight 85%

Question 10

Which busses can the battery supply?

Answer 10

DC essential bus

Battery bus

Battery utility bus

Question 11

the No. 1 Generater normally powers what?

Answer 11

1 AC PRI BUS

AC REF BUS

1 Converter

Question 12

the No. 2 Generater normally powers what?

Answer 12

2 AC PRI BUS

1 Converter

Question 13

How long can you fly on the alternate bearing the the generator?

Answer 13

10 hours

Question 14

If GEN BRG Caut appear for over ___ min, a writeup is required

Answer 14

1

Question 15

NOTE: If a converter fails, do not turn off the corresponding _____

Answer 15

Battery

Question 16

When will BAT LOW CHARGE illuminate

Answer 16

When battery voltage is at or below minimum

Question 17

AC REF BUS caution indicates:

Answer 17

1 of the 2 Autotransformas has failes

Question 18

For how long can you approximately operate on Battery power only?

Answer 18

15 minutes

Question 19

The UH60M utilizes two _____ amp converters?

Answer 19

400

Question 20

_____ relay connects the two battery systems

Answer 20

Battery Bus cross tie relay connects the two battery systems

Question 21

AC Ref Bus supplies Stabilator Indicating system with _____ vac

Answer 21

AC Ref Bus supplies Stabilator Indicating system with 26 vac

Question 22

AC Ref Bus replaces AC Essential Bus with additional _____ volt ac autotransformer (T-115) added

Answer 22

AC Ref Bus replaces AC Essential Bus with additional 26 volt ac autotransformer (T-115) added

Question 23

In case of dual generator failure what 3 cautions/advisories WILL be present

Answer 23

CONV 1
CONV 2

AC REF BUS DEGARD