Kuwonongeka kwa voteji mwachindunji kuyambira injini ndi phindu la zoyambira zofewa

1. Zimayambitsa kusinthasintha kwamagetsi mu gridi yamagetsi, zomwe zimakhudza magwiridwe antchito a zida zina mu gridi yamagetsi

Pamene injini ya AC imayambika mwachindunji pamagetsi athunthu, mphamvu yoyambira idzafika 4 mpaka 7 nthawi yomwe idavotera panopa.Pamene mphamvu ya galimotoyo ndi yaikulu, kuyambika kwa magetsi kumayambitsa kutsika kwakukulu kwa magetsi a gridi, zomwe zimakhudza kugwira ntchito kwa zida zina mu gridi.

Poyambira pang'onopang'ono, poyambira nthawi zambiri amakhala nthawi 2-3 pamlingo wapano, ndipo kusinthasintha kwamagetsi pagululi nthawi zambiri kumakhala kotsika 10%, komwe sikukhudza kwambiri zida zina.

⒉ Mphamvu pa gridi yamagetsi

Kukhudzidwa kwa gridi yamagetsi kumawonekera makamaka m'magawo awiri:

① Mphamvu yamagetsi yayikulu yomwe idayambitsidwa mwachindunji ndi injini yayikulu kwambiri pagululi yamagetsi imakhala yofanana ndi momwe gawo lalifupi la magawo atatu limakhudzidwira pa gridi yamagetsi, zomwe nthawi zambiri zimayambitsa kugwedezeka kwamagetsi ndikupangitsa gridi yamagetsi kusiya kukhazikika.

② Poyambira pakali pano pali ma harmonics ambiri otsogola, omwe amapangitsa kuti pakhale kumveka kwafupipafupi ndi magawo a gridi, zomwe zimapangitsa kuti pakhale kusokonezeka kwa chitetezo cha relay, kulephera kudziwongolera ndi zolakwika zina.

Pakuyambira kofewa, kuyambika kwapano kumachepetsedwa kwambiri, ndipo zotsatira zomwe zili pamwambazi zitha kuthetsedwa.

Kuwonongeka kwamagetsi amagalimoto, kuchepetsa moyo wamagalimoto

① Kutentha kwa Joule komwe kumapangidwa ndi mphamvu yayikulu kumachita mobwerezabwereza kutsekemera kwakunja kwa waya, komwe kumathandizira kukalamba kwa kusungunula ndikuchepetsa moyo.

② Mphamvu yamakina yomwe imapangidwa ndi mphamvu yayikulu imapangitsa kuti mawaya azimatirana wina ndi mnzake ndikuchepetsa moyo wotsekera.

③ Chochitika cha jitter cha kukhudzana pomwe chosinthira chamagetsi chatsekedwa chimapangitsa kuti pakhale kuphulika kwamagetsi pamayendedwe a stator, nthawi zina kufika kupitilira nthawi 5 mphamvu yamagetsi yomwe imagwiritsidwa ntchito, ndipo kuchulukira kwakukulu koteroko kungayambitse vuto lalikulu pakuyimitsa kwagalimoto. .

Mukayamba mofewa, mphamvu yamagetsi imachepetsedwa ndi theka, kutentha kwanthawi yomweyo kumakhala pafupifupi 1/4 ya chiyambi chowongoka, ndipo moyo wotsekemera udzakulitsidwa kwambiri;Pamene magetsi omalizira amatha kusinthidwa kuchokera ku zero, kuwonongeka kwa overvoltage kumatha kuthetsedwa.

Kuwonongeka kwa mphamvu yamagetsi pamoto

Mkulu wapano udzatulutsa mphamvu yayikulu pa koyilo ya stator ndi khola lozungulira la gologolo, zomwe zingayambitse kumasula, kusinthika kwa koyilo, kusweka kwa khola la gologolo ndi zolakwika zina.

Poyambira mofewa, mphamvu yokhudzidwa imachepetsedwa kwambiri chifukwa chapamwamba kwambiri ndi yaying'ono.

5. Kuwonongeka kwa zida zamakina

Mphamvu yoyambira yamagetsi athunthu molunjika ndi pafupifupi 2 nthawi ya torque yovotera, ndipo torque yayikulu yotere imawonjezedwa pazida zamakina zosasunthika, zomwe zimafulumizitsa kuvala magiya kapena kumenya mano, kuthamangitsa kuvala lamba kapena kutulutsa lamba, imathandizira tsamba kutopa kapena kuswa mphepo tsamba, ndi zina zotero.

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