Ntchito ya Kusintha kwa Katundu

Thechosinthira katundundi chipangizo chosinthira pakati pa chosinthira magetsi ndi chosinthira magetsi. Chili ndi chipangizo chosavuta chozimitsira magetsi, chomwe chingadule mphamvu yolemera yomwe yayesedwa ndi mphamvu inayake yodzaza magetsi, koma sichingadule mphamvu yofupikitsa magetsi.

Thechosinthira katunduimagwiritsidwa ntchito makamaka kuswa ndi kutseka mphamvu yamagetsi, ndipo chosinthira mphamvu chingagwiritsidwenso ntchito limodzi ndi fuse yamagetsi amphamvu kuti chilowe m'malo mwa chosinthira magetsi. Chifukwa chosinthira mphamvu ndi chosavuta kugwiritsa ntchito ndipo mtengo wake ndi wokwanira, chosinthira mphamvu chimagwiritsidwa ntchito kwambiri mu dongosolo la netiweki yogawa ya 10kV. Kusankha bwino maswiti amagetsi mu kapangidwe kake ndikofunikira kwambiri kuti zitsimikizire kuti gridi yamagetsi ikugwira ntchito bwino komanso modalirika.

Njira yogwirira ntchito ya switch yonyamula katundu ndi iyi: pamene brake yatsegulidwa, pansi pa ntchito ya kasupe wotsegulira, shaft yayikulu imazungulira mozungulira wotchi. Kumbali imodzi, pisitoni imapita mmwamba kudzera mu crank-slider mechanism kuti ikanikize mpweya; kumbali ina, kudzera mu seti ziwiri za njira yolumikizirana ya mipiringidzo inayi. Dongosolo lotumizira lopangidwa limapangitsa mpeni waukulu kutsegulidwa kaye, kenako limakankhira mpeni wozimitsa wa arc kuti utsegule arc contact, ndipo mpweya wopanikizika mu silinda umatulutsa arc kudzera mu nozzle.

Mfundo yogwirira ntchito ya switch yodzaza ndi mphamvu yamagetsi ambiri ndi yofanana ndi ya circuit breaker. Kawirikawiri, chipangizo chozimitsira mpweya chosavuta chimayikidwa, koma kapangidwe kake ndi kosavuta. Chithunzichi chikuwonetsa switch yodzaza ndi mphamvu yamagetsi yampweya wopanikizika. Njira yake yogwirira ntchito ndi iyi: pamene brake yatsegulidwa, pansi pa mphamvu ya kasupe wotsegulira, shaft yayikulu imazungulira mozungulira wotchi. Kumbali imodzi, pisitoni imapita mmwamba kudzera mu crank-slider mechanism kuti ikanikize mpweya.

Kumbali inayi, kudzera mu makina otumizira mauthenga opangidwa ndi magulu awiri a njira yolumikizirana ya mipiringidzo inayi, mpeni waukulu umatsegulidwa kaye, kenako mpeni wozimitsa arc umakankhidwa kuti utsegule cholumikizira cha arc, ndipo mpweya wopanikizika womwe uli mu silinda umatulutsa arc kudzera mu nozzle. Mukatseka, kudzera mu shaft yayikulu ndi makina otumizira mauthenga, tsamba lalikulu ndi tsamba lozimitsa arc zimazungulira mozungulira nthawi imodzi, ndipo cholumikizira cha arc chimatsekedwa kaye; shaft yayikulu imapitiliza kuzungulira, kotero kuti cholumikizira chachikulu chimatsekedwa pambuyo pake.

Pa nthawi yotseka, kasupe wotsegulira amasunga mphamvu nthawi imodzi. Popeza chosinthira katundu sichingaswe mphamvu yamagetsi yafupikitsa, nthawi zambiri chimagwiritsidwa ntchito limodzi ndi fuse yamagetsi yamphamvu yochepetsera mphamvu yamagetsi. Ntchito yochepetsera mphamvu ya fuse yochepetsera mphamvu yamagetsi sikuti imangomaliza ntchito yophwanya magetsi, komanso imachepetsa kwambiri kutentha komwe kumachitika chifukwa cha mphamvu yamagetsi yafupikitsa mphamvu yamagetsi ndi mphamvu yamagetsi.