Mkhulu kangakanani amandla okuqala enjini?

Kunemibono ehlukene yokuthi zingaki izikhathi lapho i-motor yokuqala iqala khona okwamanje, futhi eminingi yayo isekelwe ezimweni ezithile.Njengezikhathi eziyishumi, izikhathi eziyisi-6 kuye kweziyi-8, izikhathi ezi-5 kuye kweziyi-8, izikhathi ezi-5 kuye kweziyi-7 njalonjalo.

Okunye ukusho ukuthi lapho isivinini se-motor singu-zero ngesikhathi sokuqala (okungukuthi, umzuzu wokuqala wenqubo yokuqala), inani lamanje kufanele libe yinani lamanje le-rotor evaliwe.Ochungechungeni lwe-Y oluvame ukusetshenziswa kakhulu lwezigaba ezintathu zama-asynchronous motors, kunemithetho ecacile ku-JB/T10391-2002 “Y uchungechunge lwezigaba ezintathu zama-asynchronous motors”.Phakathi kwazo, inani elishiwo lesilinganiso se-rotor-rotor yamanje kuya kumanje olinganisiwe we-motor 5.5kW kanje: ngesivinini esivumelanayo se-3000, isilinganiso se-rotor evaliwe okwamanje esilinganisiwe ngu-7.0;ngesivinini esivumelanayo se-1500, isilinganiso se-rotor ekhiyiwe okwamanje esilinganisiwe yi-7.0;Uma ijubane lokuvumelanisa liyi-1000, isilinganiso se-rotor evaliwe okwamanje esilinganisiwe si-6.5;lapho isivinini sokuvumelanisa singama-750, isilinganiso se-rotor ekhiyiwe kuya kwesilinganiso samanje singu-6.0.Amandla enjini angu-5.5kW makhulu uma kuqhathaniswa, kanti injini enamandla amancane iyinani lamanje eliqalayo nekaliwe lamanje.Kufanele kube kuncane, ngakho-ke izincwadi zokufunda zikagesi kanye nezindawo eziningi zithi ukuqala kwamanje kwe-asynchronous motor izikhathi ezi-4 ~ 7 ezilinganisiwe zamanje zokusebenza..

Kungani injini iqala manje iphezulu?Ngemuva kokuqala i-current incane?

Lapha sidinga ukuqonda ngokombono wesimiso sokuqala se-motor kanye nesimiso sokujikeleza kwe-motor: lapho i-induction motor isesimweni esimisiwe, kusukela endaweni yokubuka ka-electromagnetic, ifana ne-transformer, kanye ne-stator winding exhunywe emandleni. ukunikezwa kufana nekhoyili eyinhloko ye-transformer , I-valve-circuit rotor winding ilingana nekhoyili yesibili ye-short-circuited ye-transformer;ukuxhumana okungewona kagesi phakathi kwe-stator winding kanye ne-rotor winding kuwukuxhuma kazibuthe kuphela, futhi i-flux magnetic yakha isifunda esivaliwe ngokusebenzisa i-stator, i-air gap, ne-rotor core.Ngesikhathi sokuvala, i-rotor ayikashintshi ngenxa ye-inertia, futhi insimu yamagnetic ejikelezayo inqamula ama-rotor windings ngesivinini esiphezulu sokusika.-isivinini esivumelanayo, ukuze ama-rotor windings ahehe amandla kagesi aphezulu kakhulu.Ngakho-ke, inani elikhulu likagesi ligeleza kumqhubi we-rotor.I-electric current, le yamanje ikhiqiza amandla kazibuthe akhansela inkambu kazibuthe ye-stator, njengoba nje ukuguquguquka kazibuthe kwesibili kwe-transformer kukhansela ukugeleza kazibuthe okuyinhloko.Ukuze kugcinwe i-flux yasekuqaleni kazibuthe ihambisana ne-voltage yokuphakela amandla ngaleso sikhathi, i-stator inyusa ngokuzenzakalelayo yamanje.Ngenxa yokuthi i-rotor current inkulu ngalesi sikhathi, i-stator current iphinde ikhule kakhulu, ngisho nangaphezulu izikhathi ezingu-4 kuya kwezingu-7 zamanje ezilinganiselwe.Lesi yisizathu samanje esikhulu sokuqala.Kungani i-current incane ngemva kokuqala: Njengoba isivinini se-motor sanda, isivinini lapho i-stator magnetic field isika khona i-rotor conductor iyancipha, amandla kagesi akhiqizwa ku-rotor conductor ayancipha, futhi okwamanje ku-rotor conductor nawo ayancipha, ngakho-ke I-stator yamanje isetshenziselwa ukuvala i-rotor yamanje ekhiqizwa Ingxenye yamanje ethintekile yi-flux magnetic nayo iyancishiswa, ngakho-ke i-stator yamanje ishintsha kusukela enkulu kuya encane kuze kube evamile.

Ibhalwe nguJessica