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January 5, 2017

Ukusebenza kwe-auto transformer

Voltage High resistors
ngo-DBreg2007

Ukusebenza kwe-auto transformer

Ukusebenza kwe-auto transformer
Kunezikhathi lapho umuntu edinga ukuthi i-voltage ibe phezulu noma ibe phansi. Abantu abaningi bangase bacabange ukuthi ukuthola i-voltage eguquguqukayo ne-fixed AC supply kunzima. Kodwa empeleni, i-voltage ye-AC engaguquki ingaguqulwa ibe i-voltage ye-AC eguquguqukayo kusetshenziswa i-auto transformer.
I-auto transformer iyi-transformer lapho ama-windings ayisisekelo kanye nesesibili axhunywe khona ngogesi ukuze ingxenye ye-winding ijwayele kokubili ama-windings.Kulesi sihloko, sizoxoxa ngokwakhiwa nokusebenza kwesimiso se-auto transformer.
I-auto transformer iqukethe intambo yethusi eyodwa. Intambo ivamile kokubili isifunda sokuqala nesesibili. I-copper wire iboshwe eduze kwe-silicon steel core. Ompompi abathathu banikezwa phezu kwama-windings ahlinzeka ngamaleveli amathathu we-voltage ephumayo. Ama-winding ayisisekelo nawesibili axhunywe ngogesi futhi ahlanganiswe ngozibuthe. Lesi sakhiwo senza ama-auto transformer ashibhe, abe mancane futhi asebenze kahle kakhulu ezilinganisweni zamandla kagesi ngaphansi kwama-transformer amathathu ajwayelekile. Futhi, i-auto transformer inokusabela okuphansi, ukulahlekelwa okuphansi, i-voltage encane ye-excitation kanye nomthetho ongcono uma kuqhathaniswa nozakwabo onamajika amabili.
Umgomo oyinhloko wokusebenza kwe-auto transformer ukwenyusa noma ukwehlisa i-voltage. Ahlanganisa ukujikajika okukodwa. I-voltage eyinhloko isetshenziswa kuzo zonke iziphetho ezimbili zokusonta. Eyisisekelo nesesibili zabelana ngephuzu elifanayo lokungathathi hlangothi. I-voltage yesibili itholakala kunoma iyiphi indawo yokuthepha nendawo emaphakathi.
Ukudluliswa kwamandla ikakhulukazi kwenzeka ngenqubo yokuqhuba. Ingxenye encane kuphela yamandla idluliswa nge-inductively. I-voltage ekujikeni kwayo iyafana ocingweni oluyinhloko nolwesibili. I-voltage ingahluka ngokushintsha nje inani lamajika. Itheminali eyodwa ixhunywe kokukodwa kokuthepha kuyilapho enye ixhunywe kokungathathi hlangothi. I-auto transformer ayilutho ngaphandle kwe-transformer evamile emibili ehlangene exhunywe ngendlela ekhethekile.
Ku-auto transformer, amandla okufaka nawokukhipha acishe alingane. Inezinzuzo eziningi uma kuqhathaniswa nama-transformers avamile. Isiza ukuguquguquka okubushelelezi kwe-voltage, esebenza kahle kakhulu kune-transformer evamile, idinga izinto ezingaphansi kwe-conductive, ezincane nezingabizi kakhulu, ukulahlekelwa ithusi elincane futhi inamandla okulawula i-voltage ephakeme uma kuqhathaniswa ne-transformer emibili ephendukayo.
Umkhawulo oyinhloko we-auto-transformer yukuthi okuyisisekelo nesesibili akuzona zodwa ngogesi. Noma isiphi isimo esingathandeki ekuqaleni sizothinta okokusebenza okuxhunywe kwesesibili.
Isetshenziswa kakhulu ekuhloleni amalabhorethri njengesiqalisi esizenzakalelayo semishini yokungenisa.
Abaguquli bamandla
Njengoba igama lisho, iziguquli zamandla ziguqula i-voltage. Umsebenzi wabo oyinhloko ukubamba i-voltage ephansi kanye ne-voltage ephezulu. Lokho kuyisekethe yamanje ephezulu kanye nesekethe yamanje ephansi ngokulandelana. Isebenza ngomgomo kaFaraday.
I-skeleton ye-transformer yenziwe ngamashidi ensimbi aminated. Iqoshwe ohlotsheni lwegobolondo noma uhlobo oluyisisekelo. Amashidi ayalinyazwa abese exhunywa kusetshenziswa ama-conductor ukuze akhe i-transformer emithathu yesigaba esingu-1 noma esisodwa sezigaba ezi-3. Ama-transformer amathathu esigaba esi-1 anebhange ngalinye elihlukanisiwe kwelinye futhi ngalokho anikeza ukuqhubeka kwesevisi lapho ibhange elilodwa lehluleka. I-transformer eyodwa ye-3-phase, kungakhathaliseki ukuthi uhlobo oluyinhloko noma igobolondo; ngeke isebenze ngisho nebhange elilodwa lingasebenzi. Lesi siguquli esinezigaba ezi-3, nokho, ishibhile ukwenziwa, sinonyawo oluncane, futhi sisebenza ngokusebenza kahle kakhulu.
Ingxenye yensimbi yesiguquli samandla icwiliswa kuwoyela ovimbela umlilo ngaphakathi kwethangi. Isilondolozi esiphezu kwethangi sivumela uwoyela okhulayo ukuthi uchitheke kuwo. Isiguquli sempompi yokulayisha esiseceleni kwethangi sivumela ushintsho enanini lokujika kwamandla kagesi aphezulu. Lokho ukushona phansi kwamanje kokulawulwa kwamandla kagesi. Izihlahla eziphezu kwethangi zivumela ama-conductor ukuthi angene ngokuphepha futhi aphume ethangini.
I-transformer ingasebenza ngaphezu kwesilinganiso sayo esivamile. Ama-Power transformer afakelwe amafeni apholisa umgogodla we-transformer endaweni engaphansi kwezinga lokushisa elishiwo. Kodwa ukulayishwa ngokweqile isikhathi eside akunconywa ngoba kuzolimaza ukufakwa kwama-winging.
Ama-winding ayisisekelo nesesibili ku-transformer, ofcourse insulated esuka komunye nomunye, ancike kumgomo wokungeniswa yedwa ukuze akhiqize amandla e-electro motitive force, ngendlela eguquguqukayo ehlukanisiwe kumashidi ensimbi ane-laminated.
Ukuze uvumele ukuhamba kwemisinga, ama-windings alimala njenge-delta noma inkanyezi, ohlangothini ngalunye. Ukusetshenziswa kwalokhu kuxhumana kwe-delta-star, star-delta, star-star, noma delta-delta kwenza umthelela omkhulu ekwakhiweni kwesistimu yamandla. Ngakho ukukhetha uxhumano kubalulekile.
I-transformer exhunyiwe yenkanyezi-nkanyezi ayivamisile ukusetshenziswa kusistimu yamandla. Kodwa-ke ukuze kuhlanganiswe inzuzo yedizayini yokujika kwenkanyezi kanye nalezo zokujika kwe-delta, ukujika okwesithathu - i-delta tertiary yakhelwe ku-transformer yenkanyezi enezinkanyezi ezimbili.
Ama-Power transformer anenani lezicelo. Ingasetshenziswa ukuxhuma:
* Ibhange le-Capacitor - ukulungiswa kwe-voltage noma amandla
* Ama-reactors - ukukhawulela amaphutha angaphansi komhlaba
* Ama-resistors - ukukhawulela amaphutha angaphansi komhlaba
* I-transformer yesevisi yesiteshi - amandla e-AC emishini engaphakathi kwesiteshi esincane
* Uhlelo lokusabalalisa - ukunika amandla idolobha noma ikhasimende lezimboni

Lesi sihloko simayelana nokusebenza kwe-auto transformer

Umlando Wombhali :http://www.powertransformers.in

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