Njengamanje, inani elikhulu lama-asynchronous motors e-AC asetshenziswa emabhizinisini ezimboni nasezimayini, iningi lawo asebenzisa imodi yokuqala eqondile.Ukuqala okuqondile kuyindlela elula yokuqala, ukuqala injini ngommese noma i-contactor exhunywe ngokuqondile kugridi yamandla.Inzuzo yokuqalisa ngokuqondile ukuthi imishini yokuqalisa ilula futhi isivinini sokuqala siyashesha, kodwa ukulimala kokuqala okuqondile kukhulu: (1) umthelela wegridi yamandla: Ukuqala ngokweqile kwamanje (akukho-mthwalo oqala okwamanje kuze kufike ezikhathini ezingu-4 kuya kwezingu-7 umthamo wamanje olinganisiwe, oqala ngomthwalo ofika ezikhathini eziyisi-8 kuye kweziyi-10 noma ngaphezulu), uzobangela ukwehla kwamandla kagesi wegridi, kuthinte ukusebenza okuvamile kwezinye izinto ezisebenza ngogesi, kungase futhi kubangele isenzo sokuvikela ukungasebenzi kahle, okuholela ekukhubekeni okuyingozi kwemishini.Ngasikhathi sinye, umthamo wokuqala omkhulu kakhulu uzokwenza ukushisa kwe-motor winding, ngaleyo ndlela kusheshise ukuguga kwe-insulation, kuthinte impilo yemoto;(2) umthelela wemishini: i-torque yomthelela eyeqile ivamise ukubangela ibha yekheji ye-motor rotor, ukuphuka kwendandatho yokugcina kanye nokuguga kwe-stator end winding insulation, okuholela ekuqhekekeni, ukuhlanekezela kwe-shaft, ukuhlangana, ukulimala kwegiya lokudlulisela kanye nokudabuka kwebhande;(3) Umthelela emishinini yokukhiqiza: ukucindezela ukushintsha okungazelelwe enqubweni yokuqala ngokuvamile kubangela ukulimala kwepayipi lesistimu yephampu kanye ne-valve, kufinyeze impilo yesevisi;Kuthinta ukunemba kokudlulisela ngisho nokulawula inqubo evamile.Konke lokhu kubangela usongo ekusebenzeni okuphephile nokuthembekile kwemishini, kodwa futhi kubangela ukulahlekelwa kwamandla okuqala ngokweqile, ikakhulukazi lapho ukuqala nokuma okuvama kubanda nakakhulu.
Ukuze sixazulule izinkinga ezingenhla, sithuthukise ihigh voltage motor motor soft starter.Isigaba ngasinye sakhiwe uchungechunge lwezingxenye ze-thyristor ezixhunyiwe, futhi i-voltage ohlangothini lwe-stator ye-motor ikhuphuka kancane kancane ngesikhathi sokuqala ukufeza injongo yokuqala yokunciphisa ugesi.Umsebenzi ophelele wokuvikela imoto uqinisekisa ukuthi injini ingavikelwa ngesikhathi lapho iphutha elifana nokuntuleka kwesigaba, ukungalingani kwamanje kwesigaba, ukugcwala ngokweqile kanye nokungena kwe-undervoltage kwenzeka ngesikhathi sokuqala.
Ukusebenzisa i-motor soft starterukulawula ukuqala kwe-motor kungaxazulula ngokuphumelelayo izinkinga ezingenhla ezibangelwa ukuqala okuqondile.
Isikhathi sokuthumela: Nov-11-2023