Специальный текст Electrical Power Panel

Профессиональный текст для специальности 25.02.03 "Техническая эксплуатация электрифицированных и пилотажно-навигационных комплексов"
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Electrical Power Panel

1 Bat 1 (2) ind.

Battery voltage is indicated in white.

 

2 Bat 1 (2) pb sw.

Controls the operation of the corresponding Battery Charge Limiter.

AUTO:

The battery charge controller unit automatically controls the connection/disconnection of the corresponding battery to the DC BAT BUS (3 PP) by closure/opening of the battery line contactor.

  • APU starting (MASTER SW at ON and N < 95%).
  • Battery voltage below 26.5 V (battery charge). End of charging cycle occurs when battery charge current becomes lower than 4 A:
  • On ground, immediately
  • In flight, after a time delay of 30 mn.
  • Loss of AC BUS 1 and 2 when below 100 KT (EMER GEN not supplying).
  • If AC BUS 1 and 2 are not supplied, and emergency generator is not supplying (during RAT transit and after L / G extension) :
  • Battery 1 supplies the AC STAT INV bus, and, provided speed is greater than 50 kt, the AC ESS bus.
  • Battery 2 supplies the DC ESS BUS.
  • A/C is on ground
  • BAT pb sw are at AUTO
  • Main power supply (EXT PWR + GEN) is cut off and
  • Battery voltage is lower than 23V for more than 16 sec.

Reset is achieved by switching BAT pb sw to OFF then Auto.

OFF:

The battery charge control unit is not operating, the battery line contactor is open.

OFF light illuminates white provided the DC BAT BUS is supplied.

Hot buses remain supplied.

FAULT it:

Illuminates amber accompanied by ECAM caution activation when the charging current for corresponding battery increases at an abnormal rate.

In this case the battery contactor opens.

3 IDG 1 (2) (Integrated Drive Generator) pb sw (guarded)

 

CAUTION :

  1. If the pb is pressed for longer than about 3 sec damage may occur to the disconnection mechanism.
  2. Do not disconnect the IDG when the engine is not running (or in wind milling) since IDG damages would occur at engine start.

Normally spring loaded out.

When pressed the IDG is disconnected from its drive shaft and can only be reconnected by maintenance personnel.

FAULT it:

Illuminates amber accompanied by ECAM caution activation in case of:

  • IDG oil outlet overheat (above 185_C), or
  • IDG oil pressure low. Inhibited at low engine speed (N2 below 14%).

4 GEN 1 (2) pb sw

ON:

The generator field is energized and the line contactor closes provided electrical parameters are normal.

OFF:

The generator field is de-energized and the line contactor opens.

The fault circuit is reset.

FAULT it:

Illuminates amber accompanied by ECAM caution activation in the event of:

  • Protection trip initiated by the associated Generator Controi Unit (GCU).

Note: If the protection trip is initiated by a differential fault the reset action has no effect after two attempts.

  • Opening of the line contactor (except if GEN pb sw selected OFF).

5 APU GEN pb sw

ON:

The APU generator field is energized and the line contactor closes provided parameters and normal and EXT PWR line contactor is open.

The bus tie contactor 1 and 2 automatically closes if GEN 1 and GEN 2 are not operative.

OFF:

The generator field is de-energized and the line contactor opens.

The fault circuit is reset.

FAULT it:

APU GEN FAULT it is inhibited when APU speed it too low.

6 BUS TIE pb sw

AUTO:

The bus tie contactors (BTC) open or close automatically in order to maintain power supply to both AC BUS 1 and 2.

  • One contactor is closed when:
  • One engine generator supplies the associated AC BUS bar, and
  • The APU GEN or EXT PWR supplies the other side.
  • Both contactors are closed in case of one engine, or APU GEN, or EXT

PWR supply.

OFF:

Both bus tie contactors open.

 

7 AC ESS FEED pb sw

The AC ESS BUS is normally supplied from the AC BUS 1.

Normal:

The AC ESS BUS is supplied from AC BUS 1

ALTN:

The AC ESS BUS is supplied from AC BU 2

FAULT it:

Illuminates amber accompanied by ECAM activation when the AC ESS BUS is not electrically supplied.

Note: In case of total loss of main generator the AC ESS BUS is automatically supplied by the emergency generator or by the static inverter if the emergency generator is not available.

 

8 GALLEY pb sw

AUTO:

Main galley and secondary galley are supplied.

The main galley is automatically shed in the following cases:

  • In flight: Only one generator is operating.
  • On ground: Single engine generator operating (All galleys are available when APU GEN or EXT PWR is supplying).

OFF:

The main galley and secondary galley are not supplied.

FAULT it:

Comes on amber accompanied by ECAM activation when the load of any generator is above 100% of rated output.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRICAL POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical Power Panel

 

 

 

Vocabulary:

  1. Ind – indicator

Indicator – a device that displays information

Индикатор – устройство, на котором отображается информация.

 

  1. Sw – switch

Switch – a device which changes the condition of an electrical system from on / of or open/close.

Выключатель – устройство, которое изменяет состояние электрической цепи: включено-выключено или замкнуто-разомкнуто.

  1. Pb – push button – нажимная кнопка
  2. Cut off – отключать электроцепь

 

  1. Switch guard – предохранительный колпачок выключателя
  2. the connection [kəˈnekʃn] – соединение
  3. the closure [ˈkləʊʒə] - замыкание (цепи)
  4. the caution [kɔːʃn] – предупреждение
  5. the galley – бортовая кухня
  6.  the fault [fɔːlt] – сбой, неисправность

 

 

 

 

  -

Exercise 1.

Complete the sentences with the following words.

Indicated, reset, prevent, configuration, be reconnected, de-energized, at an abnormal rate, power supply

 

 

 

  1. Battery voltage is …. in white.
  2. In normal … the batteries are disconnected most of the time.
  3. A battery automatic cut off logic … batteries from complete discharge when on ground (parking).
  4. … is achieved by switching BAT pb sw to OFF.

5.FAULT:

It illuminates amber accompanied by ECAM caution activation when the charging current for corresponding battery increases ….

  1. When pb is pressed the IDG is disconnected from its drive shaft and can only … by maintenance personnel.
  2. OFF:

The generator field is … and the line contactor opens.

  1. The bus tie contactors (BTC) open or close automatically in order to maintain … to both AC BUS 1 and 2

 

 

 

 

 

Exercise 2.

Answer the questions.

 

  1. How does the battery charge controller unit automatically control the connection/disconnection of the corresponding battery to the DC BAT BUS ?
  2. When are the batteries  connected to the DC BAT BUS?
  3. When does automatic battery contactors opening occur?
  4. What may occur If the pb is pressed for longer than about 3 sec?
  5. When is BUS TIE pb sw AUTO (OFF)?
  6. When does AC ESS FEED pb sw Illuminate amber?
  7. When does OFF light illuminate for galley?

 

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Завьялова С. О.
Английский язык, СУЗ, Уроки