Mapangidwe apamwambazophulitsira ma circuit breakers opangidwa ndi chipolopoloAmagwiritsa ntchito zolumikizira zamkuwa zapamwamba kwambiri, mapulasitiki opangidwa ndi uinjiniya oletsa moto komanso makina ozimitsira moto olondola. Mphamvu yawo yodziwika bwino yamagetsi ndi kusweka kwake ndizokhazikika. Amapereka chitetezo chokwanira komanso chotchinga chafupikitsa, mawonekedwe okhazikika, kutentha kochepa, kukana kwa arc, magwiridwe antchito amphamvu oteteza kutentha, kudalirika kwa ntchito kwa nthawi yayitali, ndipo ndi oyenera pazinthu zofunika kwambiri monga kugawa kwamagetsi ndi mafakitale. Ali ndi chitsimikizo cha nthawi yayitali ndipo apambana ziphaso zokhwima.
Kugwira ntchito kwa zinthu zapakati kumakwaniritsa zofunikira pakugawa mphamvu kwa anthu wamba. Zipangizo ndi njira zake ndi zapamwamba kwambiri. Kulondola kwa chitetezo ndikovomerezeka. Mphamvu yosweka komanso kulimba kwake ndi avareji. Kulemera kwakukulu kwa nthawi yayitali kumatha kuyambitsa kutentha ndi kukalamba, ndipo kulephera kwake kumakhala kwakukulu pang'ono.
Zinthu zotsika mtengo nthawi zambiri zimagwiritsa ntchito zinthu zamkuwa zosalimba kapena zinthu zopangidwa ndi mkuwa, zokhala ndi zinthu zosavuta kuzimitsa moto, zoteteza zomwe zili ndi zilembo zabodza, zoopsa zambiri zoti zigwe, kulephera kugwira ntchito kapena kugwiritsa ntchito molakwika, kuchedwa kwa moto, ndipo zimayambitsa kuyaka, ma circuit afupiafupi kapena ngakhale moto, zomwe zimaika pachiwopsezo chachikulu cha chitetezo. Zimagwiritsidwa ntchito kwambiri m'ma circuit akanthawi kochepa kapena osafunikira kwenikweni.