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PC-12 AB > Electrical Sysytem > Flashcards

Electrical Sysytem Flashcards

1
Q

What is the electrical system’s voltage?

A

28 VDC and 26 VAC

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2
Q

What is battery’s voltage and capacity?

A

24 Volts with 40 Amp-hours

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3
Q

What is GEN 1 capacity?

A

300amps, 450amps for 2mins per hour.

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4
Q

What is GEN 2 capacity?

A

115amps.

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5
Q

What is the maximum battery current drain, causing yellow EIS annunciator to light up?

A

60amps.

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6
Q

How long will the battery power aircraft at 50A drain?

A

30mins.

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7
Q

How long will the battery power aircraft at 60A drain?

A

20mins.

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8
Q

What is the minimum battery voltage for engine start? (battery start)

A

24 VDC.

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9
Q

What kind of AC system does PC12 have?

A

26 VAC and 115 VAC at 400hz (115 not used)

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10
Q

What should GPU be rated at to run avionics and for engine start?

A

27-30 VDC

500A to run avionics

1000A to have engine start

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11
Q

When do Bus CAWS lights trigger?

A

When below 18 V

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12
Q

When does GEN 2 tie close?

A

When GEN 1 fails

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13
Q

When does Bus tie open?

A

GEN 1 BUS current draw exceeds 200.

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14
Q

What are the starter cycle limits?

A

30 on, 60 off, 30 on, 30mins off

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15
Q

Which battery offers better repeated starting properties?

A

NiCad

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16
Q

Which battery has a potential for overheating and thermal runaway?

A

NiCad

17
Q

At what Gen 1, Gen 2 or BAT voltage will EIS begin to indicate over-voltage?

A

29.5 V

18
Q

At what Bat current will EIS begin to indicate battery overcharge?

A

Continuous increase above 10 A in 7 secs

19
Q

DC Amps Battery EIS limitation:

A

below -60amps (caution range, amber)

Continuous increase above 10 amps every 7 seconds (warning range, red) OVERCHARGE

20
Q

DC Volt battery caution range:

A

Below 22.0 V after 3 seconds

Above 29.6 V

20
Q

DC Amps GEN 2 caution range:

A

Above 140 Amps (no red range)

21
Q

DC Volt GEN 1 caution range:

A

Below 22.0 V after 2 seconds

Above 31.5 V

22
Q

OAT EIS caution:

A

Below 4 degrees and probe de-ice switched off

PC-12 AB (16 decks)

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