AC Generation System Overview
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Questions and Answers

Which component supplies the AC network with 115VAC on the ground only?

  • Ram Air Turbine Generator
  • Static Inverter
  • Variable Frequency Generators
  • Ground Power Units (correct)

What is the primary function of the Auxiliary Power Unit (APU) starter/generator in the AC generation system?

  • To provide emergency power during flight
  • To synchronize AC frequency with generators
  • To supply AC network with 230VAC (correct)
  • To convert battery power to AC

Where is the static inverter located in the AC generation system?

  • On the right side of the aft belly fairing
  • In the lowest section of the forward fuselage
  • In the engine compartment
  • On the left side of the avionics compartment (correct)

How many Variable Frequency Generators (VFGs) are installed on the engines?

<p>Four (B)</p> Signup and view all the answers

What voltage does the Ram Air Turbine (RAT) module supply to the AC emergency network?

<p>230VAC (B)</p> Signup and view all the answers

What is the voltage output of the Ground Power Units (GPUs)?

<p>115VAC (C)</p> Signup and view all the answers

Which system component provides power when emergency battery 1 is available?

<p>Static inverter (A)</p> Signup and view all the answers

Where is the Ram Air Turbine (RAT) module located?

<p>On the right side of the aft belly fairing (A)</p> Signup and view all the answers

What type of power does the Auxiliary Power Unit (APU) starter/generator provide to the AC network?

<p>230VAC (B)</p> Signup and view all the answers

How many external power receptacles are installed on the aircraft?

<p>Two (D)</p> Signup and view all the answers

Flashcards

AC Main Generation Components

Ground Power Units (GPUs), Variable Frequency Generators (VFGs), and Auxiliary Power Unit (APU) starter/generator provide AC power.

Ground Power Units (GPUs)

Supply 115VAC to the AC network on the ground, via external receptacles.

Variable Frequency Generators (VFGs)

Provide 230VAC to the AC network.

AC Emergency Generation

Provides backup AC power through static inverter and RAT generator.

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Ram Air Turbine (RAT) module

Provides 230VAC emergency power when fully extended.

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What is the AC main generation?

The AC main generation provides the primary AC power to the aircraft. It consists of Ground Power Units (GPUs), Variable Frequency Generators (VFGs), and the Auxiliary Power Unit (APU) starter/generator.

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What does the APU starter/generator supply?

The APU starter/generator supplies the AC network with 230VAC power.

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What is the purpose of the static inverter?

The static inverter provides 115VAC to the AC inverter busbar when the emergency battery is available.

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Where are the Variable Frequency Generators (VFGs) located?

Four VFGs are installed on the engines, two on each engine.

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What is the function of the Ram Air Turbine (RAT) module?

The RAT module supplies 230VAC emergency power to the AC network when it is fully extended.

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Study Notes

AC Generation System

  • System includes main and emergency generation components.

AC Main Generation

  • Ground Power Units (GPUs): Provide 115VAC power to the aircraft on the ground via external receptacles.
  • Variable Frequency Generators (VFGs): Supply 230VAC power to the AC network. Four VFGs are installed, two per engine.
  • Auxiliary Power Unit (APU) starter/generator: Supplies 230VAC to the AC network.

AC Emergency Generation

  • Static Inverter: Provides 115VAC power to the AC inverter busbar, activated when emergency battery 1 is available.
  • Ram Air Turbine (RAT) Module AC Generator: Supplies 230VAC power to the emergency AC network if the RAT is fully deployed.

System Location

  • VFGs: Installed on the engines (two per engine).
  • External Power Receptacles: Located on the forward fuselage.
  • RAT Module: Situated on the right side of the aft belly fairing.
  • Static Inverter: Positioned on the left side of the avionics compartment.

System Interface

  • AC network receives 230VAC from the APU starter/generator.

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Description

Explore the components and functions of the AC generation system used in aircraft. This quiz covers both the main and emergency generation aspects, including key elements like Ground Power Units, Variable Frequency Generators, and the Ram Air Turbine. Test your understanding of how these systems integrate to provide power during various operational scenarios.

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