Mfundo yogwiritsira ntchito-cholinga chotumizirana zinthu ndi yotengera ma elekitiromagineti induction. Akapatsidwa mphamvu, mphamvu ya maginito imapangidwa mu koyilo, kukopa ndi kutseka kukhudzana; pamene -apatsidwa mphamvu, mphamvu ya maginito imasowa, ndipo zolumikizira zimatseguka. Kachitidwe kameneka kakusintha ma contacts pogwiritsa ntchito mphamvu ya ma elekitiromagineti kumathandiza kuti cholinga chanthawi zonse chizitha kutumiza ndi kuwongolera ma siginecha.
General -purpose relay ndi chinthu chamagetsi chomwe chimagwiritsidwa ntchito kwambiri poyang'anira dera. Makhalidwe ake apamwamba ndi kusinthasintha kwakukulu, kudalirika kwakukulu, kuwongolera kwakukulu, kusinthasintha kwakukulu, ndi kukula kochepa.
Zazonse-zolumikizirana zomwe zimagwiritsidwa ntchito nthawi zambiri zimagawidwa m'mitundu iwiri: nthawi zambiri zolumikizira zotsegula komanso zotseka. Nthawi zambiri otsegula otsegula amatsekedwa pamene alibe mphamvu ndikutsegula pamene apatsidwa mphamvu; Nthawi zambiri zolumikizira zotsekedwa ndizosiyana, zimatsegulidwa pomwe sizinapatsidwe mphamvu komanso zotsekedwa zikapatsidwa mphamvu. Kapangidwe kameneka kamalola kuti ma relay azitha kuwongolera zidziwitso pansi pazigawo zosiyanasiyana ngati pakufunika.
Pomaliza, kufala kwa kugwiritsa ntchito zida zonse zapakhomo ndi -zimene zimagwiritsidwa ntchito nthawi zonse sizimangowonjezera magwiridwe antchito ndi magwiridwe antchito a zidazi komanso kumabweretsa kufewetsa ndi chitonthozo m'moyo wathu. Ndi kupitilira kwaukadaulo ndi chitukuko chaukadaulo, akukhulupirira kuti itenga gawo lofunikira kwambiri komanso losiyanasiyana m'tsogolo la zida zapakhomo.
