Electrical System

Question 1

What are possible sources of DC power?

Answer 1

3 Generators
2x 24VDC 44 Amp Batteries
External Power (GPU)
Hydraulic Generator (HMDG)

Question 2

Are the electrical systems sides normally split or tied together?

Answer 2

Split

Question 3

When does the bus tie normally close?

Answer 3

Ext. Power
Batt Power
Single Gen

Question 4

Is there AC power?

Answer 4

Passenger convenience items and cabin lighting through inverters

Question 5

How many CB panels are there?

Answer 5

CL300 - 7 total

CL350 - 8 total

Question 6

What is the acceptable GPU Voltage limit?

Answer 6

24-32 Volts

Question 7

GPU AVAIL indicates what?

Answer 7

The GPU is connected and meets the quality criteria. When at least 5 volts is sensed, AVAIL on the PBA is indicated and the electrical synoptic page displays a GREEN GPU symbol

Question 8

Individual battery voltage can be read where?

Answer 8

Electrical and Summary synoptic pages

Question 9

When do the generators automatically come online?

Answer 9

Automatically when engine is running after start except when a GPU is connected

Question 10

What buses are powered when operating on a single generator?

Answer 10

Ground: All 6 (2 Essential, 2 Main, 2 Aux)
Flight: 4 (2 Essential, 2 Main)

Question 11

When are the AUX buses automatically load shed in flight?

Answer 11

Single Generator Operations

Question 12

What buses will remain powered during loss of all generators in flight?

Answer 12

Essential and Battery Buses

Question 13

Selecting the battery switch to the ON position connects the batteries to what buses?

Answer 13

Essential

Question 14

What is the minimum voltage required on the left battery prior to APU start?

Answer 14

20.5 volts (Flexjet CFM)

20 volts per manufacturer

Question 15

What type of batteries does the CL30 have and what are they rated at?

Answer 15

2x 24 VDC 44amp NICAD

Question 16

Which battery powers the APU starter?

Answer 16

Right Battery, but can revert to Left if needed

Question 17

Can all 3 generators power the aircraft simultaneously?

Answer 17

Yes, the Right and APU normally share the load of the right side items

Question 18

When do the Emergency Lights come on automatically?

Answer 18

Right Main Bus failure

Question 19

Where do we plug in the GPU?

Answer 19

On the lower right side of the fuselage, just below the engine pylon

Question 20

Which battery is turned on first when powering up the aircraft?

Answer 20

Right Battery - to prevent uncommanded APU starts

Question 21

What do the Left and Right AUX Buses power?

Answer 21

Cabin AC & DC
FO Side Window
Foot Warmers

Question 22

After generator power loss, how long will battery power last?

Answer 22

Main 24 VDC 44amp Batteries = 1 hour

Standby Battery = 3.5 hours