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UH60M systems 2 > Electrical System > Flashcards

Flashcards in Electrical System Deck (13)
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1
Q

AC ESS BUS has been replaced with what on the UH60M?

A

AC Reference BUS

2
Q

What is new with the AC reference BUS?

A

Additional 26 volt autotransformer added for system redundancy

3
Q

If one autotransformer fails?

A

AC reference bus degraded advisory

4
Q

200 amp DC converters have been replaced by what?

A

400 amp DC converters

5
Q

What is different with the DC and battery portion of the electrical system on the UH60M?

A

2 batteries. Additional BATT BUS, BATT UTIL BUS, DC ESS BUS.

6
Q

The two SLAB batteries provide for uninterrupted power to essential systems for how long?

A

15 minutes

7
Q

Can one of the batteries power the other batteries batt and dc ess bus?

A

yes

8
Q

How many battery junction boxes are provided?

A

2

9
Q

Where is the no. 2 batt junction box located?

A

Under the pilot’s seat.

10
Q

Where is the no. 1 batt junction box located?

A

Avionics nose tunnel

11
Q

The generator is the same as used in the A/L. What are the output specifications redefined to?

A

20/23.8 KVA continuous.

12
Q

When only battery power is available,_______ charged batteries will provide _____________ of power at night assuming all dc electrical equipment is left on and used, including the searchlight. The battery life will be increased by turning off unnecessary equipment.

A

80%, 12 minutes

13
Q

Cold start capsules can be used for?

A

Checking battery status.