Ukuqhubekela phambili, uma ubhekisela kulokhu, ungase ucabange ngokuqhubekela phambili kokuthola izitifiketi zobungcweti, njenge-CET-4 kanye ne-CET-6. Emotweni, imoto nayo inezigaba. Uchungechunge lapha alubhekiseli ekuphakameni kwemoto, kodwa ejubaneni elihambisanayo lemoto. Ake sithathe imoto yezinga lesi-4 njengesibonelo ukuze sibone incazelo ethile yochungechunge lwemoto.
Injini yezinga lesi-4 ibhekisela kwisivinini esihambisanayo semoto esingumzuzu owodwa = {imvamisa yokunikezwa kwamandla (50Hz) × imizuzwana engama-60} ÷ (izigaba zemoto ÷ 2) =3000 ÷ 2 = ukuzungeza okungu-1500. Embonini, sivame ukuzwa ukuthi imoto inezigaba eziningana. Ukuze siqonde, kumele siqale sazi umqondo we-pole: i-pole ibhekisela ku-magnetic pole eyakhiwe yi-generator rotor ngemuva kokuthi ugesi wokuvuselela usetshenziswe ku-rotor coil. Ngamafuphi, kusho ukuthi ukuzungeza ngakunye kwe-rotor kungadala imijikelezo eminingana yamanje ekujikeni okukodwa kwe-stator coil. Kuyadingeka ukukhiqiza amandla angu-50Hz uma inani lezingodo lihlukile. Kudingeka isivinini esihlukile. I-50Hz, imizuzwana engama-60 nemizuzu (okungukuthi, i-3000) ehlukaniswe ngenani lezingodo yinani lokuzungeza kwemoto ngomzuzu. Kunjalo nangemoto, okuyinqubo ephambene nje yejeneretha.
Inani lezinsika libonisa ijubane elihambisanayo lenjini. Ijubane elihambisanayo lezinsika ezimbili lingu-3000rmin, ijubane elihambisanayo lezinsika ezine lingu-1500rmin, ijubane elihambisanayo lezinsika eziyisithupha lingu-1000rmin, kanti ijubane elihambisanayo lezinsika ezingu-8 lingu-750rmin. Kungaqondwa ukuthi izinsika ezimbili ziyinombolo eyisisekelo (3000), izinsika ezingu-4 zingahlukaniswa kuphela zibe yizinsika ezingu-2, ezingu-6 zingahlukaniswa zibe yizinsika ezingu-3, kanti ezingu-8 zingahlukaniswa zibe yizinsika ezingu-4. Esikhundleni sezinsika ezimbili, kufanele kusetshenziswe u-3000 ukususa ezingu-2. Uma inani lezinsika zenjini lilikhulu, ijubane lenjini liyancipha, kodwa i-torque yayo inkulu; lapho ukhetha injini, kufanele ucabangele i-torque yokuqala edingwa umthwalo. Isibonelo, i-torque edingwa ukuqala ngomthwalo inkulu kunaleyo yokuqala ngaphandle komthwalo. Uma iqala ngamandla aphezulu futhi inzima, ukuqala phansi (noma ukuqala kwe-star delta) nakho kufanele kucatshangelwe; Ngokuqondene nokufanelana kwejubane nomthwalo ngemva kokunquma inani lezinsika zemoto, kungacatshangwa ukuthi kushayela nge-pulley yebhande enobubanzi obuhlukene noma ngegiya lejubane eliguquguqukayo (i-Gearbox). Uma izidingo zamandla zomthwalo zingenakuhlangatshezwa ngemva kokunquma inani lezinsika zemoto ngokusebenzisa ibhande noma i-gear transmission, amandla okusebenzisa emoto kumele acatshangelwe.
Imoto ye-AC yesigaba sesithathu yakhiwe kakhulu yi-stator kanye ne-rotor. Uma i-AC yesigaba sesithathu ixhunywe ku-stator, kuzokhiqizwa insimu yamagnetic ejikelezayo. Insimu yamagnetic ihlala inama-pole amabili (kungathiwa avele ngamabili), okuyi-N pole (North Pole) kanye ne-S pole (south pole), eyaziwa nangokuthi i-counter pole. Uma imodi yokugoqa ye-AC motor stator winding ihlukile, inani lama-pole magnetic field yamagnetic ejikelezayo lihlukile. Inani lama-pole magnetic lithinta ngqo isivinini semoto, futhi ubuhlobo bawo bungu: isivinini esivumelanayo = 60 × I-logarithm yezinga lemvamisa. Uma isivinini esivumelanayo semoto singu-1500 rpm, kungabalwa ukuthi i-pole logarithm ingu-2, okungukuthi, imoto enama-pole angu-4 ngokwefomula engenhla. Isivinini esivumelanayo kanye ne-pole logarithm yizici eziyisisekelo zemoto, ezingatholakala ku-nameplate yemoto. Ngenxa yokuthi i-pole logarithm ingathinta ijubane lemoto, ijubane lemoto lingashintshwa ngokushintsha i-pole logarithm yemoto.
Ngemithwalo yoketshezi efana namafeni namaphampu, lolu hlobo lomthwalo lunesici esivelele. Njengoba isisho sithi, lubizwa ngokuthi ukuguquka kokumelana, okusho ukuthi lolu hlobo lomthwalo lunokumelana okukhulu nokuguquka kwesimo samanje. Nakuba i-torque edingekayo ukukhuthaza ushintsho lwalolu hlobo lomthwalo ingekho phezulu, idinga amandla amaningi ukushintsha isimo samanje ngokushesha. Kufana namanzi abilayo. Umlilo omncane nawo ungabila, futhi kufanele ube njalo. Izobila maduze, futhi umlilo ongadingeka uzoba mkhulu kakhulu.
Lezi yizincazelo ezithile zochungechunge lwezimoto. Ngomsinga onikeziwe kanye nogesi oqalayo, akukho buhlobo obungenakugwenywa phakathi kwazo. Ugesi oqalayo empeleni uncike ekusethweni kwejika le-VF lokuqala kanye nobude besikhathi sokusheshisa. Ngomthwalo woketshezi, ukusebenzisa ijika lamandla amaningi kungenza imishini isebenze ngokulondoloza amandla kakhulu futhi ithole izinzuzo ezengeziwe zomnotho.
Isikhathi sokuthunyelwe: Novemba-08-2021
