Injini enamandla aphezulu
Ngokuvamile kukholelwa ukuthi injini ene-voltage yokuphakelwa engu-3KV ~ 10KV ibizwa ngokuthiinjini enamandla aphezuluAma-motor angu-6300V kanye no-10000V avame ukusetshenziswa. Amandla enjini alingana nomkhiqizo we-voltage kanye nowamanje, ngakho-ke amandla enjini ene-voltage ephansi ayanda ngezinga elithile (njenge-300KW/380V), ugesi olinganiselwe uzoba mkhulu kakhulu, ukulahleka komugqa kuzoba yisikwele ngokwanda kwamanje (I^2*r), indawo enqamulayo yentambo iyadingeka ukuthi ibe nkulu kakhulu, ngakho-ke amandla okuthwala avumelekile ekhebula anqunyelwe, futhi izindleko ziphezulu kakhulu. Ngalesi sikhathi, kuyadingeka ukwandisa ugesi osebenzayo olinganiselwe ukuze kutholakale amandla aphezulu okukhipha.
Injini enamandla aphansi
Imoto ye-voltage ephansi ibhekisela ku-voltage ye-AC engaphansi kwe-1000V motor, ngokuvamile ibhekisela ku-AC 380V motor, 440V noma 660V kanye namanye amazinga e-ama-motor angavumelaniempeleni asetshenziswa kancane. Imoto enamandla aphansi ihlukaniswe yaba yimoto engasebenzi ngendlela efanayo ne-AC kanye nemoto ye-DC izinhlobo ezimbili.
Izinzuzo kanye nokungalungi kwama-motor ane-voltage ephezulu uma kuqhathaniswa nama-motor ane-voltage ephansi
(1) Izinzuzo
(1) kungenziwa ngamandla amakhulu, afinyelela ezinkulungwaneni noma ngisho namashumi ezinkulungwane zama-kilowatts. Lokhu kungenxa yokuthi, emandleni afanayo okukhipha, ugesi we-motor onama-voltage aphezulu ungaba mncane kakhulu kunemoto onama-voltage aphansi (ngokuyisisekelo ngokulingana nogesi), isibonelo, ugesi ongu-500kW, onama-pole angu-4 onama-voltage, ugesi onama-voltage angu-380V we-900A noma ngaphezulu, kuyilapho ugesi onama-voltage angu-10kV ungaba ngu-30A noma ngaphezulu kuphela. Ngakho-ke ukugoqa ugesi we-motor onama-voltage aphezulu kungaba ububanzi obuncane bentambo. Ngenxa yalokho, ukulahlekelwa kwethusi kwe-stator kwemoto onama-voltage aphezulu nakho kuzoba ngaphansi kowemoto onama-voltage aphansi. Kuma-motor amakhulu, ukusetshenziswa kukagesi onama-voltage aphansi, kodwa ngenxa yesidingo sezintambo ezijiyile futhi kudinga indawo enkulu ye-stator groove, ukuze ububanzi be-stator core benze umsebenzi omningi, usayizi wonke wemoto nawo uzoba mkhulu kakhulu.
② Kuma-motor amakhulu, ama-motor ane-voltage ephezulu asetshenziswa emishinini yokuphakelwa kwamandla nokusabalalisa amandla angaphansi kokutshalwa kwezimali okuphelele kuma-motor ane-voltage ephansi, kanye nokulahlekelwa komugqa kuncane, kungonga inani elithile lokusetshenziswa kwamandla. Ikakhulukazi, ama-motor ane-voltage ephezulu angu-10kV, ungasebenzisa ngqo ugesi wenethiwekhi (ugesi we-voltage ephezulu waseShayina ohlinzekwa kubasebenzisi ngokuvamile u-10kV), ukuze utshalomali emishinini yamandla (ikakhulukazi ama-transformer) lube luncane, ukusetshenziswa okulula, izinga lokwehluleka lizoba lincane.
(2) Ukungalungi
① Izindleko zokugoqa ziphakeme kakhulu (ikakhulukazi zibangelwa ukufudumeza), kanti izindleko zezinto zokufudumala ezihlobene nazo zizoba phezulu.
(ii) Inqubo yokwelapha ukushisa inzima kakhulu, futhi izindleko zomsebenzi ziphakeme.
③ Izidingo zokusetshenziswa kwendawo ziqinile kakhulu kunezo zamamotha ane-voltage ephansi.
Ukuqhathanisa umehluko phakathi kwemoto ene-voltage ephansi kanye nemoto ene-voltage ephezulu
Umehluko omkhulu ngesakhiwo
Okokuqala, izinto zokwahlukanisa amakhoyili zenza umehluko, ama-motor ane-voltage ephansi, i-coil ikakhulukazi ucingo olune-enamel noma olunye ulwahlu olulula, njengephepha elihlanganisiwe, ulwahlu olune-voltage ephezulu luvame ukusetshenziswa esakhiweni esinezingqimba eziningi, njenge-tape ye-mica ephuphuthekile, isakhiwo siyinkimbinkimbi kakhulu, izinga eliphakeme lokumelana nengcindezi.
Okwesibili, umehluko ekwakhiweni kokupholisa, ama-motor ane-voltage ephansi asebenzisa kakhulu ama-fan e-coaxial avuthela ngqo ukuze aqede ukushisa, ama-motor ane-voltage ephezulu ane-radiator eningi ezimele, ngokuvamile izinhlobo ezimbili zabalandeli, isethi yabalandeli bokujikeleza kwangaphakathi, isethi yabalandeli bokujikeleza kwangaphandle, amasethi amabili abalandeli asebenza ngesikhathi esisodwa, ukushintshana kokushisa ku-radiator kuzokhishwa ngaphandle kokushisa kwemoto.
Okwesithathu, isakhiwo sebhereyitha sihlukile, amamotha ane-voltage ephansi ngokuvamile anesethi yama-bearings ngaphambi nangemuva, kuyilapho amamotha ane-voltage ephezulu, ngenxa yomthwalo osindayo, ngokuvamile kuba namasethi amabili ama-bearings ekugcineni kwe-axial, futhi inani lama-bearings ekugcineni okungeyona i-axial linqunywa ngokwesimo somthwalo, futhi ikakhulukazi amamotha amakhulu azosebenzisa ama-bearings ashelelayo.
Ukuqhathaniswa kokusebenza kwemoto kanye nezindleko
1. Uma izinga le-voltage liphakeme, kulapho amandla enjini eba makhulu khona.
2, uma izinga le-voltage liphezulu, izindleko zokufaka ziphakeme; yize i-voltage ikhuphuka, ugesi uba mncane, i-wire kanye ne-cable cross-section zingakhethwa zibe zincane, kodwa isidingo sama-circuit breaker ane-voltage ephezulu, ama-transformer, ama-switchgear kanye nezinye izindleko zemishini zisakhushulwa ekutshalweni kwezimali kokuqala kwemishini emikhulu, ngakho-ke amabhizinisi amancane esakhiweni esisha azimisele ukusebenzisa imishini ene-voltage ephansi.
3, uma izinga likagesi liphezulu, izindleko zokusebenza ziyancipha; ugesi omncane ukwehlisa ukulahlekelwa kwamandla, ngokuhamba kwesikhathi kufanelekile, umphumela ohlanganisiwe wokonga amandla uyamangalisa, ngakho-ke amabhizinisi amaningi amakhulu ekuguqulweni kobuchwepheshe kwama-motor ane-voltage ephansi aguqulwa abe ama-motor ane-voltage ephezulu.
4, uma izinga le-voltage liphezulu, isikhala esiningi sihlala khona; ngoba kunamakhabethe okulawula ane-voltage ephezulu kanye nabanye abantu abahlala kuwo.
5, uma izinga le-voltage liphakeme, imoto kulula ukuyiqala, i-torque yokuqala iyakhuphuka, i-start, nokulawula kulula kakhulu.
6, uma izinga likagesi liphezulu, ukuphathwa kokugcinwa kuyinkimbinkimbi kakhulu; ngakho amabhizinisi amancane azimisele ukusebenzisa ugesi ophansi, amabhizinisi amakhulu azimisele ukusebenzisa ama-motor ane-voltage ephezulu.
Isikhathi sokuthunyelwe: Juni-12-2024