Kamar yadda kowa ya sani, raguwar saurin gudu da kuma rufe motar a cikin tsarin kula da mita yana samuwa ta hanyar rage mita a hankali. A lokacin raguwar mita, saurin injin ɗin yana raguwa, amma saboda inertia na inji, saurin rotor na motar ya kasance baya canzawa. Lokacin da saurin aiki tare ya yi ƙasa da saurin na'ura mai juyi, yanayin juyi na yanzu yana canzawa da kusan digiri 180, kuma motar tana canzawa daga yanayin lantarki zuwa yanayin haɓakawa. Domin kare motar da kuma cinye wutar lantarki da aka samar, sau da yawa muna amfani da ripple resistors a cikin motar. Ripple resistors suna amfani da ripples na saman tsaye don sauƙaƙe ɓarkewar zafi da rage inductance parasitic, da kuma zaɓin murfin inorganic na harshen wuta don kare ingancin waya mai ƙarfi daga tsufa da tsawaita rayuwar sabis.
A cikin elevatorbirki resistors, Aluminum alloy resistors sun fi juriya ga yanayin yanayi da rawar jiki fiye da na'urorin da aka yi da corrugated, kuma sun fi masu tsayayyar kwarangwal na gargajiya na gargajiya. A cikin matsananciyar yanayin kula da masana'antu, ana zabar masu tsayayyar gami na aluminum. Yana da sauƙi a ɗagawa damtse kuma ana iya saka shi da magudanar zafi. Dangane da halin da ake ciki, mahallin lif na iya zaɓar yin amfani da resistors na aluminum. Duk da haka, a gaba ɗaya, yawancin nau'o'in lif suna ba da fifiko ga masu tsayayyar alloy na aluminum, wanda zai iya sa lif ya fi aminci cikin sharuddan bayan kulawa kuma yana da tsawon rayuwar sabis.
Ƙarƙashin buƙatu daban-daban, ana amfani da resistors na aluminum gami da ripple resistors a cikin lif. A lokuta da yawa, masu tsayayyar birki na elevators suna buƙatar yin aiki a tsaye na dogon lokaci. Saboda haka, ƙarin masana'antun lif za su zaɓi masu tsayayyar alloy na aluminum a matsayin masu tsayayyar birki don lif, wanda zai iya rage yawan gyare-gyare, tabbatar da amincin masu hawan hawa, da tabbatar da aiki mai kyau na motoci.
