Electrical System

Question 1

The batter can be charged from:

Answer 1

Either generator, not external power

Question 2

In flight the main battery is used to provide:

Answer 2

Back up DC power

Question 3

Both generators supply power to all buses:

Answer 3

When the bus tie is in the normal position

Question 4

After completing a start of the left engine, with idle Ng you release the start switch and notice that the L Gen Caution light illuminates. What does this mean?

Answer 4

This is a normal indication

Question 5

The reverse current circuit breaker (RCCB) is located where?

Answer 5

In the main cabin roof (schematically between the main battery and the left DC bus)

Question 6

With the bus tie open will the battery charge if the left generator fails?

Answer 6

Yes

Question 7

If you have only your left generator available, will all AC & DC busses receive power?

Answer 7

Yes if the bus tie is in normal position

Question 8

After completing a start of the left engine, with idle Ng you release the start switch and notice the L Gen caution light remains extinguished. What are the memory items?

Answer 8

Affected gen switch off, if the light doesn’t come on then external/battery switch off, shut down engine

Question 9

The equalization circuit in the voltage regulator will drop what off line if it senses a greater than 20 amp difference in load sharing?

Answer 9

the low amp gen?

Question 10

What is the only indication to the pilot during flight if the RCCB has tripped open?

Answer 10

The battery load will read zero

Question 11

With the 310 series mod in place, the R 400 Cycle annunciator light illuminates. You pull the checklist, select the R Bus switch to OFF, and the light extinguishes. What does this indicate?

Answer 11

There is an AC bus fault and you have lost associated instruments and services.