Brushless
Moderatore: Staff md80.it
aiutatemi! 
Re: Brushless
Se ti dico che si può anche chiamare "generatore sincrono a magneti permanenti" ti aiuto abbastanza per la ricerca oppure mi tocca rispolverare un pò di "macchine" di elettrotecnica ?
ciao !!
ciao !!
-
87Nemesis87
- FL 150
- Messaggi: 1963
- Iscritto il: 9 maggio 2008, 14:51
- Località: Somewhere over the rainbow...
Re: Brushless
...questo testo in pdf spiega qualcosa...ci stà molto di elettrotecnica però eh
...altrimenti su wikipedia si trova qualcosa in linea generale
http://www.diegm.uniud.it/petrella/Azio ... 20MSMP.pdf
http://it.wikipedia.org/wiki/Motore_sincrono
...buona lettura
...altrimenti su wikipedia si trova qualcosa in linea generale
http://www.diegm.uniud.it/petrella/Azio ... 20MSMP.pdf
http://it.wikipedia.org/wiki/Motore_sincrono
...buona lettura
...finalmente laureato!!!
...ATPL: Completato!!
-- MEP, SEP, IR, CPL, MCC --
-- CRJ-100/900 Type Rated --
-- B737-300/900/MAX Type Rated --
...ATPL: Completato!!
-- MEP, SEP, IR, CPL, MCC --
-- CRJ-100/900 Type Rated --
-- B737-300/900/MAX Type Rated --
Re: Brushless
ehm chiede "generatori"87Nemesis87 ha scritto:...questo testo in pdf spiega qualcosa...ci stà molto di elettrotecnica però eh
...altrimenti su wikipedia si trova qualcosa in linea generale
http://www.diegm.uniud.it/petrella/Azio ... 20MSMP.pdf
http://it.wikipedia.org/wiki/Motore_sincrono
...buona lettura
-
87Nemesis87
- FL 150
- Messaggi: 1963
- Iscritto il: 9 maggio 2008, 14:51
- Località: Somewhere over the rainbow...
Re: Brushless
azz....scusate nella fretta ho letto solo magneti permanenti 
...finalmente laureato!!!
...ATPL: Completato!!
-- MEP, SEP, IR, CPL, MCC --
-- CRJ-100/900 Type Rated --
-- B737-300/900/MAX Type Rated --
...ATPL: Completato!!
-- MEP, SEP, IR, CPL, MCC --
-- CRJ-100/900 Type Rated --
-- B737-300/900/MAX Type Rated --
Re: Brushless
bè molto! ora googlo un po e poi vedo!Zapotec ha scritto:Se ti dico che si può anche chiamare "generatore sincrono a magneti permanenti" ti aiuto abbastanza per la ricerca oppure mi tocca rispolverare un pò di "macchine" di elettrotecnica ?
ciao !!
Grazie!
Re: Brushless
Se può esserti utile....
"A typical AC alternator for a jet aircraft has a rating of between 40 to 120 kVA and
has a three-phase output, with the phases normally connected in a Y-arrangement
producing a 400 Hz current. There are two basic types of alternators in use, brushless
and the brushtype. Today's aircraft typically use the brushless alternator system
employing an integrated oil cooler to help eliminate the heat generated during
operation.
A brushless alternator consists of three separate fields, a permanent magnetic
field, an exciter field, and a main output field. The permanent magnets furnish the
magnetic flux to start the generator producing an output before field current flows.
The magnetism produced by these magnets induces voltage into an armature that
carries the current to a generator control unit, or GCU. Here, the AC is rectified and
sent to the exciter field winding. The exciter field then induces voltage into the exciter
output winding. The output from the exciter is rectified by six diodes, and the
resulting DC flows through the output field winding. From here, voltage is induced
into the main output coils. The permanent magnet, exciter output winding, six diodes,
and output field winding are all mounted on the generator shaft and rotate
as a unit. The three-phase output stator windings are wound in slots the alternator
housing.
The three-phase output of AC alternators typically have a voltage of 120 volts
across each of the phase windings, and with the windings connected in a Y. the
output between each of the terminals is 208 volts. The common end of the 3 windings
is connected to the aircraft's structure. The neutral current flows via structure."
ciao
"A typical AC alternator for a jet aircraft has a rating of between 40 to 120 kVA and
has a three-phase output, with the phases normally connected in a Y-arrangement
producing a 400 Hz current. There are two basic types of alternators in use, brushless
and the brushtype. Today's aircraft typically use the brushless alternator system
employing an integrated oil cooler to help eliminate the heat generated during
operation.
A brushless alternator consists of three separate fields, a permanent magnetic
field, an exciter field, and a main output field. The permanent magnets furnish the
magnetic flux to start the generator producing an output before field current flows.
The magnetism produced by these magnets induces voltage into an armature that
carries the current to a generator control unit, or GCU. Here, the AC is rectified and
sent to the exciter field winding. The exciter field then induces voltage into the exciter
output winding. The output from the exciter is rectified by six diodes, and the
resulting DC flows through the output field winding. From here, voltage is induced
into the main output coils. The permanent magnet, exciter output winding, six diodes,
and output field winding are all mounted on the generator shaft and rotate
as a unit. The three-phase output stator windings are wound in slots the alternator
housing.
The three-phase output of AC alternators typically have a voltage of 120 volts
across each of the phase windings, and with the windings connected in a Y. the
output between each of the terminals is 208 volts. The common end of the 3 windings
is connected to the aircraft's structure. The neutral current flows via structure."
ciao
Re: Brushless
utilissimo! grazie mille...ma come hai trovato io non ho trovato molto (a parte un forum italiano specializzato) ma è esattamente questo ciò che cercavo.Grazie giacomo! E grazie a tutti!:P
Re: Brushless
non lo hai trovato in internet perchè non viene da internet ma da un libro per i corsi AML
saluti
saluti