Electrical Systems and Control Mechanisms

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Questions and Answers

What is the standard voltage output of the electrical system on the A330?

  • 115V
  • 400V
  • 115/200V (correct)
  • 200V

What is the frequency of the A330's electrical system?

  • 60HZ
  • 400HZ (correct)
  • 50HZ
  • 800HZ

How many engine-driven generators does the A330 have?

  • 4
  • 1
  • 2 (correct)
  • 3

What is the maximum output of the external power system for the A330?

<p>90 KVA (A)</p> Signup and view all the answers

Which phase configuration is utilized by the A330's engine-driven generators?

<p>3 phase (C)</p> Signup and view all the answers

What is the total KVA capacity of the engine-driven generators on the A330?

<p>230 KVA (D)</p> Signup and view all the answers

Which of the following statements about the A330's electrical system is accurate?

<p>The electrical system operates at a frequency of 400Hz. (C)</p> Signup and view all the answers

How many control units (GCU) are utilized in the A330's engine-driven generators?

<p>2 (A)</p> Signup and view all the answers

What voltage levels are supported by the A330's electrical system?

<p>115/200V (B)</p> Signup and view all the answers

What is the maximum output of the external power system on the A330?

<p>90 KVA (A)</p> Signup and view all the answers

Flashcards

A330 Electrical System Voltage

The A330 electrical system uses 115/200V

A330 Electrical System Frequency

The A330 electrical system operates at 400Hz

Auxiliary DC Voltage

The A330 uses 28V DC for auxiliary systems

Engine-Driven Generator Phase

The engine-driven generator is 3-phase

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Engine-Driven Generator KVA

Each engine-driven generator has 115 KVA

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Number of Engine-Driven Generators

The A330 has 2 engine-driven generators

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Control Units (GCU) on Generators

A330 has two control units per engine generator

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External Power Max Output

The maximum output for external power is 90 KVA

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A330 Electrical System Voltage

The A330 uses 115/200 volts AC.

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A330 Electrical System Frequency

The A330 system operates at 400Hz.

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Auxiliary DC Voltage

The A330 uses 28V DC for auxiliary systems.

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Engine-Driven Generator Phase

The engine-driven generators are 3-phase.

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Engine-Driven Generator KVA

Each engine-driven generator has a capacity of 115 KVA.

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Number of Engine-Driven Generators

The A330 has 2 engine-driven generators.

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Control Units (GCU) per Generator

There are 2 Control Units (GCU) per engine-driven generator.

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External Power Max Output

The maximum output of external power is 90 KVA.

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Study Notes

Electrical System Data

  • Electrical system type: 115/200V, 400HZ AC, 28VDC
  • Generator type: 3-phase
  • Generator capacity: 115 KVA
  • Engine driven generator
  • Generator control units (GCU) controls the network frequency and voltage output
  • Generator output voltage: 115/200V
  • Generator output frequency: 400HZ
  • External Ground Power: 90KVA MAX
  • Two GAPCU units, Ground and Auxiliary power, external control unit

Control System

  • Protection system available via GLC (Generator Line Contactor) to protect the system
  • External control unit and ground power are available.
  • APU is available

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