Motocin zoben zamewa, wanda kuma aka sani da injinan rotor na rauni, sune tushen da yawaaikace-aikacen watsawa mai ƙarfi.Ana amfani da su sosai a masana'antun kayan masarufi kamar suhakar ma'adinai, masana'antun albarkatun ma'adinai or masana'antun mannekamar siminti, dutse mai daraja, da gypsum a cikin nau'ikan niƙa, matsewa na birgima, da niƙa. Haka kuma ana amfani da su a cikin manyan fanka, famfo, da na'urorin jigilar kaya.
Stator ɗin:
Tsarin stator na injinan squirrel-cage da injinan slip-ring iri ɗaya ne. Babban bambancin injinan induction na slip-ring yana cikin tsarin rotor da yanayin aiki. Lokacin da ake amfani da injinan slip-ring a cikin tsarin cascade, ana iya samun wasu canje-canje a cikin stator saboda samar da wutar lantarki na motar ya fito ne daga ikon sarrafa wutar lantarki na rotor na wani injin slip-ring, inda aka sanya resistor na waje akan rotor ɗinsa.
Na'urar juyawa:
Menene zoben zamewa? Motar zamewa yawanci tana da rotor mai stator mai rauni mai matakai uku. Wannan nau'in rotor yana da naɗaɗɗen layi biyu mai matakai uku, wanda ya ƙunshi naɗaɗɗen da ake amfani da su a cikin janareta na AC. An yi tsakiyar rotor da laminations na ƙarfe kuma yana da ramuka don ɗaukar naɗaɗɗen matakai uku da aka kafa. Waɗannan naɗaɗɗen suna da wutar lantarki ta digiri 120. Ko da an raunata stator a matakai biyu, adadin naɗaɗɗen stator da aka ji rauni akan rotor iri ɗaya ne da lambar da ke cikin stator kuma koyaushe mataki uku ne. Waɗannan naɗaɗɗen uku ana fitar da su daga ɗayan ƙarshen ciki kuma an haɗa su da zoben zamewa guda uku da aka sanya a kan shaft ɗin rotor da kanta. Tashoshin uku suna tuntuɓar waɗannan zoben zamewa guda uku tare da taimakon gogayen carbon, waɗanda aka gyara a kan zoben ta hanyar abubuwan bazara. Waɗannan gogayen carbon guda uku an ƙara haɗa su waje zuwa rheostat haɗin farko na matakai uku. Zoben zamewa da rheostat na waje na iya ƙara juriya ta waje na da'irar rotor, yana sa ta sami juriya mafi girma yayin farawa, ta haka yana ƙara ƙarfin farawa. A ƙarƙashin yanayin aiki na yau da kullun, zoben zamewa yana kammala da'irar ta hanyar zoben hannun ƙarfe ta atomatik. Ana tura zoben hannun ƙarfe tare da sandar, wanda ke sa zoben uku su haɗu da juna. Bugu da ƙari, gogayen suna ɗagawa ta atomatik daga zoben zamewa don guje wa asarar gogayya da lalacewa. A ƙarƙashin yanayin aiki na yau da kullun, aikin rotor zoben zamewa iri ɗaya ne da na rotor-cage squirrel.
Me zai faru idan aka ƙara resistor na waje? A yanayin induction motors na squirrel-cage, juriyar rotor tana da ƙasa sosai, don haka wutar lantarki a cikin rotor tana da girma sosai, wanda ke sa ƙarfin farawa ya fi muni. Duk da haka, idan aka ƙara resistor na waje a yanayin induces na slip-ring, juriyar rotor tana ƙaruwa a lokacin farawa, don haka wutar rotor tana da ƙasa kuma ƙarfin farawa shine mafi girma. Bugu da ƙari, zamewar da ake buƙata don samar da matsakaicin ƙarfin juyawa yana daidai da juriyar rotor. A cikin indules na slip-ring, ta hanyar ƙara resistor na waje don ƙara juriyar rotor, zamewar tana ƙaruwa. Saboda babban juriyar rotor, zamewar ta fi girma, don haka ko da a ƙananan gudu, ana iya cimma ƙarfin juyawa na "jawowa". Lokacin da injin ya kai saurinsa na asali (cikakken saurin da aka ƙididdige), lokacin da aka cire resistor na waje kuma a ƙarƙashin yanayin aiki na yau da kullun, yanayin aikinsa iri ɗaya ne da na induction na squirrel-cage. Saboda haka, waɗannan induces sun fi dacewa da manyan nauyin inertia, waɗanda ke buƙatar kusan sifili ƙarfin juyawa a ƙananan gudu da haɓaka zuwa cikakken gudu, kuma suna shan mafi ƙarancin wutar lantarki cikin ɗan gajeren lokaci.
Fa'idodin injinan shigar da zobe mai zamewa:
Babban fa'idar injinan induction mai zamewa shine suna iyaa iya sarrafa shi cikin sauƙi cikin sauri.Ko da a cikin sifili, ana iya cimma "juyin juyawa". Idan aka kwatanta da injinan shigar da kekunan squirrel, yana da karfin farawa mafi girma. Juyin juyawa mai cikakken nauyi kusan kashi 200-250% na karfin juyawa mai cikakken nauyi. Injinan shigar da kekunan squirrel suna da kashi 600-700% na karfin juyawa mai cikakken nauyi, amma karfin farawa na injinan shigar da kekunan slip-ring yana da kasa sosai, kimanin kashi 250-350% na karfin juyawa mai cikakken nauyi.
Lokacin Saƙo: Afrilu-09-2025