- Kungani izinjini zisemathubeni amaningi okuthi ziphele manje kunangaphambili?
Ngenxa yokuthuthukiswa okuqhubekayo kobuchwepheshe bokufakelwa, ukuklanywa kwamamotho kudinga kokubili ukuphuma okwandisiwe kanye nevolumu encishisiwe, okwenza amandla okushisa amamotho amasha abe mancane futhi abe mancane, futhi umthamo wokulayisha ngokweqile ube buthaka futhi ube buthaka; futhi ngenxa yokuthuthukiswa kokuzenzakalela kokukhiqiza, izinjini kudingeka zisebenze njalo ngezindlela ezihlukahlukene ezinjengokuqala njalo, ukubhuleka, ukuzungezisa ukuya phambili nokuhlehla, kanye nomthwalo oguquguqukayo, okubeka izidingo eziphakeme emishinini yokuvikela imoto. Ngaphezu kwalokho, amamotho anezinhlobonhlobo zezinhlelo zokusebenza futhi avame ukusebenza ezindaweni ezinokhahlo ngokwedlulele, njengokuswakama, izinga lokushisa eliphezulu, uthuli, ukugqwala, njll. Kuhambisana nokungahambi kahle ekulungisweni kwezimoto kanye nokushiywayo ekuphathweni kwemishini. Konke lokhu kwenze ukuthi amamotho anamuhla alimale kalula kunakuqala.
- Kungani umphumela wokuvikela wezinto ezijwayelekile zokuvikela ungalungile?
Imishini evamile yokuvikela izimoto ikakhulukazi ama-fuse nama-thermal relay. Ama-Fuse angamathuluzi okuvikela asekuqaleni futhi alula kakhulu. Eqinisweni, amafuse asetshenziswa kakhulu ukuvikela izintambo zokuphakela amandla kanye nokunciphisa ukunwetshwa kwebanga lamaphutha uma kwenzeka kuba namaphutha esekethe emfishane.
Akuyona isayensi ukucabanga ukuthi i-fuse ingavikela i-motor ekujikelezeni okufushane noma ekulayisheni ngokweqile, nokukhetha i-fuse ngokuya ngesilinganiso samanje esikhundleni se-current current ye-motor. Nokho, maningi amathuba okuthi kulimaze injini ngenxa yokwehluleka kwesigaba.
I-thermal relay iyisisetshenziswa esisetshenziswa kakhulu sokuvikela ukugcwala kwezimoto. Kodwa-ke, i-thermal relay inomsebenzi owodwa, ukuzwela okuphansi, iphutha elikhulu, nokuzinza okubi, okuye kwaqashelwa iningi lezisebenzi zikagesi. Zonke lezi zinkinga zenza ukuvikelwa kwemoto kungathembeki. Lokhu kunjalo ngempela; nakuba imishini eminingi ifakwe ama-relay ashisayo, isimo sokulimala kwezimoto esithinta ukukhiqizwa okuvamile sisavamile.
- Isivikeli semoto esikahle?
Umvikeli wemoto okahle akuyena onemisebenzi eminingi, noma okuthiwa uthuthuke kakhulu, kodwa osebenza kakhulu. Ngakho yini engokoqobo? Ukusebenza kufanele kuhlangabezane nezakhi zokuthembeka, umnotho, ukunethezeka, njll., futhi kube nesilinganiso esiphezulu samanani okusebenza. Ngakho yini enokwethenjelwa?
Ukwethembeka kufanele kuqale kuhlangabezane nokuthembeka komsebenzi, njengokusebenza ngokwedlulele kanye nokuhluleka kwesigaba kufanele kukwazi ukusebenza ngokuthembekile ngenxa yokuhluleka kwezikhathi ezidlule kanye nesigaba ezenzakalweni ezihlukahlukene, izinqubo, nezindlela.
Okwesibili, ukwethembeka komvikeli ngokwawo (njengoba umvikeli ukuvikela abanye, kufanele abe nokuthembeka okuphezulu) kumele abe nokuvumelana nezimo, ukuzinza nokuqina ezindaweni ezihlukahlukene ezinonya. Ezomnotho: sebenzisa idizayini ethuthukisiwe, isakhiwo esiphusile, ukukhiqizwa okuphrofeshinali nokukhulu, nciphisa izindleko zomkhiqizo, futhi kulethe izinzuzo zezomnotho eziphezulu kakhulu kubasebenzisi. Ukunethezeka: Kufanele okungenani kufane nokudluliselwa okushisayo mayelana nokufakwa, ukusetshenziswa, ukulungiswa, izintambo, njll., futhi kube lula futhi kube lula ngangokunokwenzeka. Kungenxa yalokhu ukuthi ochwepheshe abafanelekile kade babikezela ukuthi ukuze kwenziwe lula izisetshenziswa zokuvikela izimoto zikagesi, idizayini engenawo amandla okushintsha amandla (i-passive) kufanele yakhelwe futhi yamukelwe, futhi ama-semiconductors (afana nama-thyristors) kufanele asetshenziswe esikhundleni se-electromagnetic. ama-actuator anoxhumana nabo. Ngale ndlela, kuyenzeka ukhiqize idivayisi yokuvikela ehlanganiswe nenani elincane lezingxenye. Siyazi ukuthi ukusebenza kuzoletha ukungathembeki nakanjani. Enye idinga amandla okusebenza ukuze isebenze evamile, kanti enye izolahlekelwa amandla okusebenza lapho isigaba siphulwa. Lokhu ukuphikisana okungeke kunqotshwe nhlobo.