Electrical Flashcards
What type of electrical system is the aircraft equipped with?
A 28V DC electrical power generation and distribution system
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If both generators are available, do they operate in a split bus mode or parallel mode?
Split Bus mode
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What does the white AVAIL light indicate
That the GPU button is pushed out, a GPU is connected and voltage is set between 25V DC and 30V DC
Which light will illuminate when the GPU button is pushed in and providing power to the airplane?
If the GPU button is pushed in and providing power to the airplane the white AVAIL light will go off and the green IN USE light will illuminate
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What will the indication be on the electrical synoptic page if the GPU is connected but is not providing power to the airplane
A white GPU
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What color does the battery voltage indication show if the battery is discharging
Amber
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Will the RAT be continuously displayed on the electrical synoptic page. If not, when will it be displayed.
No - only when it is deployed and providing power to the airplane.
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How can the pilot manually command the RAT to deploy
The right seat pilot can pull the red manual deploy control.
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What buses is the APU capable of supplying power to on ground if the APU is the only source of electrical power.
All electrical loads including the shed buses and charging the batteries
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What buses are the APU capable of supplying power to in flight.
All electrical loads (except for shed buses) and charging the batteries.
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What buses do the RAT generator power
EMER buses 1, 2, 3 and charging the batteries.
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When will the RAT automatically deploy
During an electrical emergency
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In flight, when will an electrical emergency occur?
When the two main generators and the APU generator are unavailable
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How many main batteries are there
Two
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What is the rating of the main batteries
24V DC 40 Ah NiCad batteries
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If the batteries are the only source of electrical power inflight, what buses will be powered and what CAS messages will be displayed?
The EMER BUSES and the red BATT DISCHARGING CAS message
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In an electrical emergency, what buses are powered/ isolated from the aircraft electrical system?
EMER BUS 1, EMER BUS 2, and EMER BUS 3
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In an electrical emergency, what sources of power can provide electrical power to the EMER BUS 1, EMER BUS 2, and EMER BUS 3
BATT 1, BATT 2, RAT
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What buses will be energized when the airplane is de-energized and there is no electrical power source available?
HOT BATT BUS 1 and HOT BATT BUS 2
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For ground servicing, when a GPU is connected and providing power to the airplane, with the GPU button pushed out and the BATT 1 and BATT 2 switches in the OFF position, which bus is energized by the GPU
SHED BUS 1
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Which battery is connected to the APU START BUS to assist with an APU start?
BATT 2
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How many generators need to be operating in order for the SHED BUSES to be energized in flight?
Two
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