Injini enamandla aphezulu
Ngokwesiqhelo kukholelwa ukuba imoto ene-voltage yokuhambisa ye-3KV ~ 10KV ibizwa ngokuba yi-imoto enamandla aphezuluIimoto ze-6300V kunye ne-10000V zisetyenziswa rhoqo. Amandla emoto ahambelana nemveliso ye-voltage kunye ne-current, ngoko ke amandla emoto ye-voltage ephantsi ayanda ukuya kwinqanaba elithile (njenge-300KW/380V), i-current elinganisiweyo iya kuba nkulu kakhulu, ilahleko yomgca iya kuba yisikwere ngokunyuka kwamanje (I^2*r), indawo enqamlezileyo yentambo kufuneka ibe nkulu kakhulu, ngoko ke amandla okuthwala avumelekileyo entambo alinganiselwe, kwaye iindleko ziphezulu kakhulu. Ngeli xesha, kuyimfuneko ukwandisa i-voltage yokusebenza elinganisiweyo ukuze kufezekiswe amandla aphezulu.
Imoto ene-voltage ephantsi
Imoto ye-voltage ephantsi ibhekisa kwi-AC voltage engaphantsi kwe-1000V motor, ngokubanzi ibhekisa kwi-AC 380V motor, 440V okanye 660V kunye namanye amanqanaba e-AC.iimoto ezingangqamaniyozisetyenziswa kancinci. Imoto ye-voltage ephantsi yahlulwe yaba yimoto ye-AC asynchronous kunye nemoto ye-DC ezimbini.
Iingenelo kunye nokungalungi kweemoto ezine-voltage ephezulu xa kuthelekiswa neemoto ezine-voltage ephantsi
(1) Iingenelo
(1) inokwenziwa ibe namandla amakhulu, ukuya kuthi ga kumawaka okanye amashumi amawaka ee-kilowatts. Oku kungenxa yokuba, kumandla afanayo okukhupha, umsinga wemoto onama-voltage aphezulu unokuba mncinci kakhulu kunemoto onama-voltage aphantsi (ngokusisiseko ulungelelanisa nombane), umzekelo, i-500kW, i-motor ene-pole 4 rated current, i-voltage elinganisiweyo ye-380V ye-900A okanye ngaphezulu, ngelixa i-voltage elinganisiweyo ye-10kV yi-30A kuphela okanye ngaphezulu. Ngoko ke ukujija kwemoto onama-voltage aphezulu kunokuba mncinci ububanzi bentambo. Ngenxa yoko, ukulahleka kwe-stator copper yemoto onama-voltage aphezulu kuya kuba ngaphantsi koko kwemoto onama-voltage aphantsi. Kwiimoto ezinkulu zamandla, ukusetyenziswa kombane onama-voltage aphantsi, kodwa ngenxa yesidingo seentambo ezityebileyo kwaye kufuneka indawo enkulu ye-stator groove, ukuze ububanzi be-stator core benze umsebenzi omninzi, ubungakanani bonke bemoto buya kuba bukhulu kakhulu.
② Kwiimoto ezinkulu ezinomthamo omkhulu, iimoto ezine-voltage ephezulu ezisetyenziswa kwizixhobo zombane kunye nokusasazwa kombane zincinci kunezo zityalwe ngokubanzi kwiimoto ezine-voltage ephantsi, kwaye ilahleko yomgca incinci, inokonga ubungakanani obuthile bokusetyenziswa kwamandla. Ngokukodwa, iimoto ezine-voltage ephezulu ze-10kV, ungasebenzisa ngqo umbane wenethiwekhi (umbane we-voltage ephezulu waseTshayina onikezelwa kubasebenzisi ngokubanzi yi-10kV), ukuze utyalo-mali kwizixhobo zamandla (ikakhulu ii-transformers) lube ncinci, ukusetyenziswa okulula, izinga lokusilela liphantsi.
(2) Iingxaki
① Ixabiso lokujija liphezulu kakhulu (ngokuyintloko libangelwa kukugquma), kwaye ixabiso lezinto zokugquma ezinxulumene noko liya kuba phezulu.
(ii) Inkqubo yonyango lwe-insulation inzima ngakumbi, kwaye iindleko zomsebenzi ziphezulu.
③ Iimfuneko zokusetyenziswa kwendalo zingqongqo kakhulu kunezo zeemoto ezine-voltage ephantsi.
Uthelekiso lomahluko phakathi kwemoto enevolthi ephantsi kunye nemoto enevolthi ephezulu
Umahluko ophambili kwisakhiwo
Okokuqala, izixhobo zokugquma iikhoyili zenza umahluko, iimoto ezine-voltage ephantsi, ucingo olune-enamel ikakhulu okanye olunye ugquma olulula, olufana nephepha elidibeneyo, ugquma iimoto ezine-voltage ephezulu ludla ngokusetyenziswa kwisakhiwo esineeleya ezininzi, njengeteyiphu ye-mica ephuhliweyo, isakhiwo sinzima ngakumbi, sinoxinzelelo oluphezulu.
Okwesibini, umahluko kwisakhiwo sokupholisa, iimoto ezine-voltage ephantsi zisebenzisa ikakhulu iifeni ze-coaxial ezivuthela ngqo ukuze zikhuphe ubushushu, iimoto ezine-voltage ephezulu kunye ne-radiator ezimeleyo uninzi lwe-radiator, ngokuqhelekileyo iintlobo ezimbini zabalandeli, iseti yefeni yokujikeleza kwangaphakathi, iseti yefeni yokujikeleza kwangaphandle, iiseti ezimbini zabalandeli ezisebenza ngaxeshanye, utshintshiselwano lobushushu kwi-radiator luya kukhutshwa ngaphandle kobushushu bemoto.
Okwesithathu, ulwakhiwo lweebheriyali lwahlukile, iimoto ezine-voltage ephantsi zihlala zineseti yeebheringi ngaphambi nasemva, ngelixa iimoto ezine-voltage ephezulu, ngenxa yomthwalo onzima, zihlala zikhona iiseti ezimbini zeebheringi kwisiphelo se-axial, kwaye inani leebheringi kwisiphelo esingeyiyo i-axial limiselwa ngokwemeko yomthwalo, kwaye ngakumbi iimoto ezinkulu ziya kusebenzisa iibheringi ezityibilikayo.
Ukuthelekiswa kokusebenza kwemoto kunye neendleko
1. Okukhona inqanaba le-voltage liphezulu, kokukhona umthamo we-motor ukhula.
2, xa i-voltage iphezulu, kokukhona iindleko zokufakela ziphezulu; nangona i-voltage inyuka, i-current iba ncinci, i-wire kunye ne-cable cross-section zinokukhethwa zibe ncinci, kodwa imfuneko yee-high-voltage circuit breakers, ii-transformers, ii-switchgear kunye nezinye iindleko zezixhobo zisanyuswa kutyalo-mali lokuqala kwizikhulu, ngoko ke amashishini amancinci kulwakhiwo olutsha azimisele ukusebenzisa izixhobo ze-low-voltage.
3, xa inqanaba le-voltage liphezulu, iindleko zokusebenza ziphantsi; umbane omncinci obangela ukuncipha kokulahleka kwamandla, ekuhambeni kwexesha kufanelekile, isiphumo sokonga amandla siyamangalisa, amashishini amaninzi amakhulu ekuguqulweni kwetekhnoloji kweemoto eziphantsi kombane eziguqulwe zaba ziimoto eziphezulu.
4, okukhona inqanaba le-voltage liphezulu, kokukhona indawo ininzi isetyenziswa; kuba kukho iikhabhathi zokulawula ezine-voltage ephezulu kunye nabanye abantu abahlala kuzo.
5, xa i-voltage iphezulu, kulula ukuyiqala imoto, i-torque yokuqala iyanda, i-start, ulawulo lulula.
6, okukhona inqanaba le-voltage liphezulu, kokukhona ulawulo lolondolozo lunzima ngakumbi; ngoko ke amashishini amancinci azimisele ukusebenzisa i-voltage ephantsi, amashishini amakhulu azimisele ukusebenzisa ii-motor ezine-voltage ephezulu.
Ixesha lokuthumela: Juni-12-2024