https://padlet.com/gardenal/mat Realizzato con carisma dalla classe ... en-us 2017-04-26 15:17:49 UTC 2025-11-02 16:30:18 UTC hello@padlet.com https://upload.wikimedia.org/wikipedia/commons/a/a4/Induction-motor-3a.gif gardenal https://padlet.com/gardenal/mat/wish/209793213 Questo è materiale del modulo CLIL di elettrotecnica. CLIL = "Content and Language Integrated Learning"]]> 2017-11-23 21:22:38 UTC https://padlet.com/gardenal/mat/wish/209793213 gardenal https://padlet.com/gardenal/mat/wish/209796871 https://upload.wikimedia.org/wikipedia/commons/7/7e/Ind-320x240-2x-rotc.gif]]> 2017-11-23 21:58:16 UTC https://padlet.com/gardenal/mat/wish/209796871 gardenal https://padlet.com/gardenal/mat/wish/214711021 Animazione interattiva sulla generazione del campo magnetico rotante.
Vedi il teorema di Galileo Ferraris]]> 2017-12-09 14:09:55 UTC https://padlet.com/gardenal/mat/wish/214711021 gardenal https://padlet.com/gardenal/mat/wish/216209045 Bel filmato (in inglese). Attenzione che dopo 5 minuti e 27 secondi mostra il contattore (o teleruttore) per il collegamento a stella in cui (errore!) mancano i ponti di chiusura del centro stella.

]]> 2017-12-14 15:59:08 UTC https://padlet.com/gardenal/mat/wish/216209045 gardenal https://padlet.com/gardenal/mat/wish/234613794 2018-02-23 09:40:51 UTC https://padlet.com/gardenal/mat/wish/234613794 gardenal https://padlet.com/gardenal/mat/wish/237989400 https://electricalengineeringquestionanswer.blogspot.it/2015/04/induction-motor-short-question-and.html
https://instrumentationtools.com/induction-motor-interview-questions-answers-2/#.Wp0JT7PCh5w]]> 2018-03-05 09:51:46 UTC https://padlet.com/gardenal/mat/wish/237989400 gardenal https://padlet.com/gardenal/mat/wish/323338845 Osservare le diverse parti componenti: nucleo ferromagnetico statorico e rotorico, avvolgimenti, isolamento, albero, cuscinetti, ventola di raffreddamento, carcassa, ...
Osservare anche come vengono rappresentati in piano gli avvolgimenti.]]> 2019-01-23 08:17:54 UTC https://padlet.com/gardenal/mat/wish/323338845 gardenal https://padlet.com/gardenal/mat/wish/323341611 Video (opzionale che spiega bene come da 3 avvolgimenti sfasati di 120°, alimentati con una terna di correnti alternative sinusoidali sfasate temporalmente di 120° si ottenga un campo magnetico rotante. (in spagnolo)]]> 2019-01-23 08:31:45 UTC https://padlet.com/gardenal/mat/wish/323341611 gardenal https://padlet.com/gardenal/mat/wish/332305056 Servono a capire il principio di funzionamento del m.a.t..
Si potrebbe dimostrare facilmente che il principio del generatore deriva dalla legge di Faraday-Neumann-Lenz.
Il principio del motore è detto anche legge di Lorentz.
Entrambi sono spiegati bene alla pagina web seguente.]]> 2019-02-18 11:23:03 UTC https://padlet.com/gardenal/mat/wish/332305056 gardenal https://padlet.com/gardenal/mat/wish/342124196 Tratto da un catalogo di Elettromeccanica Tessaro Marino S.r.l. www.tmmotori.it]]> 2019-03-17 15:10:34 UTC https://padlet.com/gardenal/mat/wish/342124196 gardenal https://padlet.com/gardenal/mat/wish/342172441 "Commutatorless" alternating current induction motors seem to have been independently invented by Galileo Ferraris and Nikola Tesla. Ferraris demonstrated a working model of his single-phase induction motor in 1885, and Tesla built his working two-phase induction motor in 1887 and demonstrated it at the American Institute of Electrical Engineers in 1888^[7][8][9] (although Tesla claimed that he conceived the rotating magnetic field in 1882).^[10] In 1888, Ferraris published his research to the Royal Academy of Sciences in Turin, where he detailed the foundations of motor operation;^[11] Tesla, in the same year, was granted a United States patent for his own motor.^[12] Working from Ferraris's experiments, Mikhail Dolivo-Dobrovolsky introduced the first three-phase induction motor in 1890, a much more capable design that became the prototype used in Europe and the U.S.^[13][14][15] He also invented the first three-phase generator and transformer and combined them into the first complete AC three-phase system in 1891.^[16]The three-phase motor design was also worked on by the Swiss engineer Charles Eugene Lancelot Brown,^[13] and other three-phase AC systems were developed by German technician Friedrich August Haselwander and Swedish engineer Jonas Wenström.^[17]]]> 2019-03-17 20:53:47 UTC https://padlet.com/gardenal/mat/wish/342172441 gardenal https://padlet.com/gardenal/mat/wish/344169134 2019-03-22 12:22:35 UTC https://padlet.com/gardenal/mat/wish/344169134