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Flashcards in AC Power Deck (8)
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1

If the aircraft ac generators are online and ground ac power is applied what will happen?

The aircraft supplies will take priority.

2

What is the purpose of the AC Load shedding relay?

To connect and disconnect busbar 2A for load shedding purposes.

3

Which system is supplied by the 26v AC transformers?

Altitude and heading reference system (AHRS).

4

At what stage to the AC Generator control units (GCU's) bring the generators online?

92% Np (370Hz)

5

Where are the alternating current generators located?

On a step up gearbox on the accessory gear box.

6

What Np does the AC generators come online at?

92%

7

If you have an AC external power caution what does it mean?

The starter master is on.

8

What Np do the frequency detect relay de-energise?

92% NP (370Hz)