ATA Chapter 24 Flashcards

1
Q

There are two identical engine driven generators called

A

Integrated Drive
Generators

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2
Q

They are used as the main power source to supply
the A/C electrical network

A

Integrated Drive
Generators (IDGs)

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3
Q

Each AC bus supplies a Transformer Rectifier (TR):

A
  • AC bus 1 supplies TR 1,
  • AC bus 2 supplies TR 2.
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4
Q

The DC battery bus can charge the batteries or receive power from the
batteries as a backup supply, if

A

no other power sources are available

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5
Q

The electrical system has an ESS TR, which supplies the DC ESS
Bus in abnormal or emergency configuration.
In abnormal configuration (loss of TR1 or TR2) the

A

ESS TR is
supplied by the AC ESS Bus.

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6
Q

A TR is

A

a Transformer Rectifier

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7
Q

IDG stands for

A

Integrated Drive
Generators

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8
Q

ESS Stands for

A

Essential

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9
Q

ESS TR Stands For

A

Essential Transformer Rectifier

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10
Q

CSD Stands For

A

Constant Speed Drive

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11
Q

ABNORMAL CONFIGURATION
The electrical system has an ESS TR, which supplies the DC ESS
Bus in abnormal or emergency configuration.
In abnormal configuration (loss of TR1 or TR2) the ESS TR is
supplied by the

A

AC ESS Bus.

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12
Q

EMERGENCY CONFIGURATION
In the event of emergency operation, the __________________ supplies the A/C with electrical power

A

Emergency Generator (EMER
GEN)

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13
Q

The EMER GEN needs ________
to operate.

A

hydraulic power

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14
Q

BATTERY ONLY CONFIGURATION
In emergency configuration with emergency generator not available

BAT 1 supplies the

A

AC ESS BUS via the static inverter

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15
Q

BATTERY ONLY CONFIGURATION
In emergency configuration with emergency generator not available

BAT 2 supplies the

A

DC ESS BUS

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