Chifukwa chiyani muyenera kusankha choyambira chofewa cha injini

Pakadali pano, ma motors ambiri a AC asynchronous amagwiritsidwa ntchito m'mabizinesi akumafakitale ndi migodi, ambiri omwe amatengera njira yoyambira mwachindunji.Direct kuyambira ndi njira yosavuta kuyamba, kuyambira galimoto kudzera mpeni kapena contactor mwachindunji olumikizidwa kwa gululi mphamvu.Ubwino woyambira mwachindunji ndikuti zida zoyambira ndizosavuta komanso liwiro loyambira liri mwachangu, koma kuvulaza koyambira molunjika ndikwabwino: (1) mphamvu ya gridi yamagetsi: Kuchulukirachulukira kuyambira pano (palibe katundu woyambira pano mpaka nthawi 4 mpaka 7). zomwe zidavotera pano, kuyambira ndi katundu mpaka 8 mpaka 10 kapena kupitilira apo), zipangitsa kutsika kwamagetsi a gridi, kukhudza magwiridwe antchito amagetsi ena, kungayambitsenso chitetezo chopanda mphamvu, zomwe zimapangitsa kuti zida ziwonongeke.Pa nthawi yomweyo, lalikulu kwambiri poyambira panopa kuchititsa moto wokhotakhota kutentha, motero imathandizira kutchinjiriza kukalamba, zimakhudza moyo wa galimoto;(2) makina amakokedwe: mochulukira mphamvu makokedwe nthawi zambiri kumayambitsa galimoto rotor khola kapamwamba, mapeto mphete kuthyoka ndi stator mapeto makhoma kutchinjiriza kuvala, kumabweretsa kusweka, kutsinde kupotoza, kugwirizana, kufala zida kuwonongeka ndi kung'ambika lamba;(3) Impact pamakina opanga: kukakamiza kusintha kwadzidzidzi poyambira nthawi zambiri kumayambitsa kuwonongeka kwa payipi yamapampu ndi valavu, kufupikitsa moyo wautumiki;Zimakhudza kulondola kwa kufalitsa komanso ngakhale kuwongolera kwadongosolo.Zonsezi zimabweretsa chiwopsezo ku ntchito yotetezeka komanso yodalirika ya zida, komanso kumayambitsa kutaya mphamvu mopitirira muyeso, makamaka pamene kuyambika ndi kuyimitsa pafupipafupi kumakhala kokulirapo.

Kuti tithane ndi mavuto omwe ali pamwambawa, tidapangahigh voltage motor soft starter.Gawo lirilonse limapangidwa ndi magawo angapo olumikizidwa a thyristor, ndipo voteji kumbali ya stator ya mota imachulukitsidwa pang'onopang'ono poyambira kukwaniritsa cholinga chochepetsa voteji kuyambira.Ntchito yabwino yodzitchinjiriza yamagalimoto imawonetsetsa kuti mota imatha kutetezedwa munthawi yomwe cholakwika monga kusowa kwa gawo, kusalinganika kwa gawo, kuchulukirachulukira komanso kutsika kwamagetsi kumachitika panthawi yoyambira.

Kugwiritsa ntchitomotor soft starterkulamulira chiyambi cha galimoto angathe kuthetsa mavuto pamwambawa chifukwa mwachindunji kuyambira.