Systems Flashcards

1
Q

Electrical

Starter/Generators

A

2, engine driven 28V DC, 330/390A

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2
Q

Electrical

Batteries

A

2 lead acid batteries

Min voltage for battery start is 24V

BATT1 - 24V DC, 34 Ah
— powers all avionics during engine start using
QSC (Quiet Start Contactor)

BATT2 - 24V DC, 42 Ah
— powers engine starts

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3
Q

Electrical

What is the max minutes of power during emergency electrical load shedding?

A

If successful…45 minutes.

If NOT successful, 7 - 10 minutes of electrical power is available

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4
Q

Electrical

GPU output required?

A

25V - 29V DC (27V min for battery charging)

— If the GPU provides less than 27V (BATT DISCH CAS), turn BATT1 and BATT2 OFF

— System will auto shed the GPU at 24.5V or less

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5
Q

Electrical

During ELEC EMER check on the ground, what is the minimum voltage?

A

23.5V

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