Kutenderera mota

Kune marudzi akawanda emagetsi anotenderera.Maererano nemabasa avo, ivo vakakamurwa kuva jenareta uye injini.Zvinoenderana nehunhu hwemagetsi, iwo akakamurwa kuita DC mota uye AC mota.Zvinoenderana nemaitiro avo, iwo akakamurwa kuita synchronous motors uye asynchronous motors.Zvinoenderana nehuwandu hwezvikamu, asynchronous motors inogona kukamurwa kuita matatu-chikamu asynchronous mota uye imwe-chikamu asynchronous motors;maererano nemhando dzavo dzakasiyana dze rotor, dzakakamurwa kuva cage uye maronda e rotor marudzi.Pakati pavo, cage matatu-phase asynchronous motors ari nyore mukugadzirisa uye kugadzirwa.Kurerukira, mutengo wakaderera, kushanda kwakavimbika, iyo inonyanya kushandiswa mumamota akasiyana, iyo yakanyanya kudiwa.Kudzivirirwa kwemheni yemichina yemagetsi inotenderera (jenereta, kugadzirisa makamera, motokari huru, nezvimwewo) yakanyanya kuoma kupfuura yevashanduri, uye mheni yengozi yemoto inowanzokwirira kupfuura yevashanduri.Izvi zvinodaro nekuti muchina wemagetsi unotenderera une humwe hunhu hwakasiyana kubva kune transformer maererano neyakagadzika chimiro, kuita uye kurongeka kwekudzivirira.
(1) Pakati pemidziyo yemagetsi yechiyero chevoltage yakafanana, simba rekumira nevoltage yekudzivirira kwemuchina wemagetsi unotenderera ndiwo wakadzikira.
Chikonzero ndeichi: ①Mota ine inotenderera inotenderera, saka inogona chete kushandisa yakasimba svikiro, uye haigone kushandisa solid-liquid (transformer mafuta) yepakati musanganiswa insulation senge transformer: panguva yekugadzira, iyo yakasimba svikiro inokuvara nyore. , uye kuvharidzira ndiko Voids kana mapeji anowanzoitika, saka kubudiswa kwechidimbu kunowanzoitika panguva yekushanda, zvichiita kuti kusvibiswa kwekudzivirira;②Mamiriro ekushandisa ekudzivirira mota ndiwo akanyanya kuomarara, ari pasi pezvakasanganiswa mhedzisiro yekupisa, kuzununguka kwemuchina, kunyorova mumhepo, kusvibiswa, kushushikana kwemagetsi, nezvimwewo, Kukurumidza kuchembera kunokurumidza;③Munda wemagetsi weiyo motor insulation chimiro chakafanana, uye mhedzisiro yayo coefficient iri pedyo ne 1. Simba remagetsi riri pasi pe overvoltage ndiyo isina simba link.Naizvozvo, iyo yakatemerwa voltage uye insulation level yemota haigone kunge yakakwira zvakanyanya.
(2) Iyo yakasara voltage yeanosunga mheni inoshandiswa kuchengetedza mota inotenderera iri padyo zvakanyanya nemhepo inomira nevoltage yemota, uye muganho wekudzivirira idiki.
Semuyenzaniso, fekitori inomira nevoltage test value yejenareta ingori 25% kusvika 30% yakakwira pane 3kA residual voltage value yezinc oxide arrester, uye muganho wemagnetic blown arrester idiki, uye muganho wekudzivirira uchave. kudzikira sezvo jenareta rinomhanya.Naizvozvo, hazvina kukwana kuti mota ichengetedzwe nemheni inosunga.Inofanirwa kuchengetedzwa nemusanganiswa we capacitors, reactor, uye tambo zvikamu.
(3) Iyo inter-turn insulation inoda kuti kunyura kwemafungu ekupinda kunoganhurwa.
Nekuti iyo inter-turn capacitance yemotor winding idiki uye isingaenderere mberi, iyo overvoltage wave inogona kungopararira pamwe chete nemhepo conductor mushure mekupinda mukati memotor winding, uye kureba kwekutendeuka kwega kwega kwemhepo kwakakura kupfuura iyo yemhepo inotenderera inotenderera. , ichiita pamativi maviri akatarisana Iyo overvoltage inoenzanirana nekukwira kwefungu rinopinda.Kuti uchengetedze iyo inter-turn insulation yemota, kukwira kweiyo intruding wave kunofanirwa kuganhurwa.
Muchidimbu, zvinodiwa zvekudzivirira mheni zvemichina yemagetsi inotenderera zvakakwirira uye zvakaoma.Izvo zvinodikanwa kuti utarise zvizere zvinodiwa zvekudzivirira zveiyo main insulation, inter-turn insulation uye neutral point insulation yemhepo.