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L’elettrotecnica, l’elettronica e gli aerei

L’elettrotecnica, l’elettronica e gli aerei. Generatori aerei passeggeri: 1 motore di avviamento principale/generatore, 2 auxiliary power unit (APU), 3 emergency ram air turbine (RAT), 4 ground power unit (GPU) (da J. F. Gieras , Advancements in Electric Machines , Springer 2008).

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L’elettrotecnica, l’elettronica e gli aerei

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  1. L’elettrotecnica, l’elettronica e gli aerei

  2. Generatori aerei passeggeri: 1 motore di avviamento principale/generatore, 2 auxiliary power unit (APU), 3 emergency ram air turbine (RAT), 4 ground powerunit (GPU) (da J. F. Gieras, Advancements in ElectricMachines, Springer 2008)

  3. Motoreturboelica e generatoriazionatidalmotore

  4. Provide power to start the main engines Turbine engines must be accelerated to a high rotational speed in order to provide sufficient air compression for self-sustaining operation. Before engines are to be turned, the APU is started, generally by a battery or hydraulic accumulator. Once the APU is running, it provides power to start the aircraft's main engines Many series -500 aircraft have an extra, dedicated APU battery to preserve main battery usage

  5. APS 2000 APU del Boeing 737. 1 light switch, 2 APU fuel line, 3 generator, 4 oil filter, 6 fuelnozzles, 7 upper shroud, 8 bleedair valve, 9 start motor, 10 oil tank, 11 bleed air manifold, 12 exhaust muffler

  6. APUsul Boeing 737: carenatura APU ingresso aria di raffreddamento al di sopra dello scarico

  7. Ram air turbine of Airbus A320 located under left wing

  8. Applicazione: generatore di tensione alternativa-sinusoidale (alternatore)

  9. AC & DC Metering panel - Classic Residual Volts: per testare un generatorechevafuorilinea Schiacciatoilpulsante, se sivedetensioneilgeneratoreruotaancora Se son mostrati 0 V, è guasto e non saràricollegato Residual volts: la sola selezionecheusa la scaladi 30 V sulvoltmetro AC

  10. AC & DC Metering panel - NG

  11. Batterie Batteria36 Ah, 24 V, 20 celle, Nickel-cadmium 30 minutes (20 mins 1/200's) of standby power if all other generators fail. Batteria APU - opzionale – principalmete per avviarel’APU(auxiliary power unit); anche in parallelo con la batteria principale45’ dialimentazione standby

  12. BatteriaAusiliaria– diriservasul NG – normalmenteisolata, unless the main battery is powering the standby system when it operates in parallel with the main battery. The aux battery combined with the main battery will provide 60’ of standby power NG: 2 extra dedicated batteries for the engine and APU fuel shut off valves and the ISFD (150’ capacity). BAT OVHT & APU BAT OVHT (overheat, surriscaldamento) lights are a customer option on classics. They are located on the aft overhead panel and no crew action is required if they should illuminate.

  13. RADAR - RAdioDetection And Ranging

  14. The TCAS algorithm selects the maneuver “sense” that provides the largest separation at the predicted closest point of approach (CPA)

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