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Kazhinji, ikozvino inodiwa nemotokari pakutanga yakakura zvikuru kupfuura yakarongwa ikozvino, iyo inenge nguva dze6 dzemazuva ano.Pasi peiyo yazvino, mota inotambura zvakanyanya kupfuura kana ichishanda semazuva ese.Kubata kwakadaro kuchawedzera kurasikirwa kwemota, kuderedza hupenyu hwemota, uye kutokonzera kukuvadza kune zvimwe zvikamu mukati memuchina kana yazvino yanyanya.Mumamiriro ezvinhu akadai, vanhu vanotanga kutarisisa kutsvagurudzo yemota yakapfava kutanga, vachitarisira kuita kuti mota itange mushe uye zvakanaka kuburikidza nehunyanzvi hwekuita.
1, iyo mota yakapfava yekutanga musimboti
Mune hunyanzvi hwepamberi, kutsvagisa kwemota yakapfava kutanga kunonyanya kudzora kutanga kwetatu-chikamu AC asynchronous mota, uye kutanga kwakapfava kwemota kunoonekwa nekushandisa matatu-chikamu AC asynchronous mota, inopa dziviriro yekutanga. uye kumira kwemota.Iyi tekinoroji yakashandiswa zvakanyanya mundima yeindasitiri.Muindasitiri, tekinoroji iyi yakashandiswa kutsiva yechinyakare Y/△ kutanga, uye mibairo yakanaka yakawanikwa.
Three-reverse parallel thyristor (SCR) inogona kugadzirisa voltage ye soft starter, uye ndiyo voltage regulator ye soft starter.Kana iyo matatu-reverse parallel thyristor yakabatana nedunhu, inoita basa rekubatanidza pakati pesimba rekupa uye stator yemota.Kana ichinge yadzvanywa kuti itange, iyo voltage mukati me thyristor inosimuka zvishoma nezvishoma, uye mota inomhanyisa zvishoma nezvishoma pasi pekuita kwevoltage.Kana iyo yekumhanya inosvika painoda kumhanya, thyristor ichave yakavhurwa zvizere.Panguva ino, iyo yakadzvanywa voltage yakafanana neyakayerwa voltage, iyo isingagone kungoziva Mumamiriro ezvinhu akadaro, mota inomhanya kazhinji pasi pekuchengetedzwa kwethyristor, izvo zvinoita kuti mota ishaye simba uye kurasikirwa, nekudaro ichirebesa hupenyu hwebasa. yemota uye kuchengetedza mota iri mukushanda kwakanaka.

2. Yakapfava yekutanga tekinoroji yeasynchronous mota
2.1, thyristor AC voltage inoronga nyoro kutanga
Iyo AC voltage inodzora kupfava kwekutanga kwe thyristor inonyanya kushandura nzira yekubatanidza ye thyristor, ichichinja iyo yechinyakare yekubatanidza modhi kuita yekubatanidza kune matatu windings, nekudaro kuona simba rekupa kune thyristor zvakafanana.Thyristor soft starter ine simba rekugadzirisa, saka vashandisi vanogona kugadzirisa kwakakodzera kumota zvichienderana nezvavanoda zvakasiyana, uye kuita kuti yekutanga modhi yemota inyatsoenderana nezvavanoda kuburikidza nekuchinja kunoenderana.

2.2.Kugadziridza musimboti wechitatu-chikamu AC voltage inoronga yakapfava yekutanga
Matatu-chikamu AC voltage inoronga yakapfava starter inoshandisa yakazara hunhu curve ye AC voltage kutanga mota.Iyo pfungwa yekushandisa hunhu curve ye AC voltage kuona kupfava kwekutanga kwemota senge iyi ndiyo pfungwa huru yemotor nyoro yekutanga.Iyo inonyanya kushandisa mapeya matatu e thyristors mukati memota kubatanidza mota munhevedzano, uye inoshandura nguva yekuvhura nekudzora iyo inokonzeresa pulse uye trigger angle.Muchiitiko ichi, iyo yekuisa terminal yemota inogona kuchengetedza yakakwana voltage kudzora kutanga kwemota.Kana iyo mota yatangwa, iyo voltage inova yakayerwa voltage, ipapo matatu ekupfuura macontactor anosanganiswa, uye mota inogona kubatanidzwa kune grid.
3. Zvakanakira nyoro kutanga pamusoro pechinyakare kutanga
"Kutanga kupfava" haingogone kudzikisa zvakanyanya kutangisa kweiyo nzira yekufambisa pachayo uye kurebesa hupenyu hwesevhisi yezvikamu zvakakosha, asi zvakare kupfupisa zvakanyanya nguva yekukanganisa kwemota kutanga ikozvino, kuderedza kupisa kwemafuta pamota uye pesvedzero. pamagetsi emagetsi, nokudaro kuchengetedza simba remagetsi uye kuwedzera hupenyu hwebasa remotokari.Pamusoro pezvo, nekushandisa tekinoroji ye "soft start", mota ine diki diki inogona kusarudzwa mukusarudzwa kwemota, nekudaro ichideredza zvisina basa mari yekushandisa.Kutanga-kwenyeredzi kunoenderana nekuchinja wiring yemotor winding, nekudaro kuchinja voltage pakutanga-kumusoro.Iyo voltage pakutanga-kumusoro inodzikiswa, zvichiita kuti yekutanga-up ikozvino idiki, uye kukanganisa kwebhazi pakutanga-kumusoro kunodzikiswa, kuitira kuti kudonha kwevoltage yebhazi pakutanga-kumusoro kuri mukati meiyo inobvumidzwa renji (inodikanwa kuti kudonha kwemagetsi kwebhazi hakufanire kudarika 10% yemagetsi akayerwa).Auto-decompression kutanga-up inogona zvakare kuderedza iripo panguva yekutanga-kumusoro, iyo inowanikwa nekushandura voltage tap ye auto-transformer.
Semuenzaniso, zvinodikanwa zvemagetsi emagetsi mukutanga-up kwemapoka mana e36 kilowatts.Iyo yakajairika yekushanda ikozvino ye36 kW mota inenge 70A, uye iyo yakananga yekutanga ikozvino inenge 5 nguva yenguva yakajairika, ndiko kuti, ikozvino inodiwa kuti mapoka mana e36 kW motors atange panguva imwechete ndeye 1400A;Chinodiwa chenyeredzi kutanga-up kune giredhi yemagetsi ndeye 2-3 nguva dzeyakajairika ikozvino uye 560-840A yemagetsi grid ikozvino, asi ichave nekukanganisa kukuru pamagetsi pakutanga-up, izvo zvakaenzana nekanenge katatu normal voltage.Izvo zvinodiwa zvekutanga zvakapfava kune gidhi remagetsi zvakare 2-3 nguva dzenguva dzose, kureva, 560-840A.Nekudaro, iko kukanganisa kwekutanga kwakapfava pamagetsi kungangoita gumi muzana, izvo zvisingazove nekukanganisa kukuru.