Li-relay li bapala karolo ea bohlokoa lits'ebetsong tsa motlakase oa likoloi.
Ntlha ea pele ke tšireletso ea potoloho: li sireletsa likarolo tsa bohlokoa tsa tsamaiso ea motlakase khahlanong le tšenyo e bakoang ke ho imeloa le li-circuits tse khutšoanyane. Mohlala, ka ts'ireletso ea li-relay, lisebelisoa tse fapaneng tsa motlakase ka har'a koloi li ka sebetsa ka botsitso le ka ts'epo.
Ea bobeli ke matlafatso ea mats'oao: a matlafatsa{{0}mats'oao a taolo ea matla a tlase ho isa ho tse phahameng-lisebelisoa tsa hajoale tse khonang ho khanna lisebelisoa tse itseng. Sena se lumella lisebelisoa tse nang le litlhoko tse phahameng tsa hajoale-joalo ka lienjineri tse itseng kapa lisebelisuoa tse ling tse hulang haholo-ho sebetsa{5}}ka nepo.
Ea boraro ke taolo ea potoloho: ba thusa ho sebetsa ha lipotoloho ka mekhoa ea ho fetola. Litsamaisong tse kang mabone a pele, mohlala, mochine o bonolo oa ho tobetsa ke sona feela se hlokahalang ho li bulela kapa ho li tima.
Ea bone ke kabo ea matla: ba tsamaisa motlakase ho tloha betereng ho ea ho lisebelisoa tse fapaneng tsa motlakase, ho etsa bonnete ba hore karolo ka 'ngoe e fumana matla a nepahetseng ao e a hlokang.
Li-relay tsa likoloi li boetse li tla ka mekhahlelo e fapaneng, joalo ka{0}li-relay tse phahameng, nako{1}}li-relay tsa nako, le{2}}mesebetsi e mengata ea li-relay.
Haeba phoso e etsahala ka har'a tsamaiso ea motlakase ea koloi, relay e senyehileng e ka 'na ea e-ba molato. Maemong a joalo, mohato oa pele ke ho hlahloba fuse e amanang le relay e khethehileng; haeba e butsoe, e nkele sebaka ka fuse e ncha ea tekanyo e nepahetseng ea amperage. Ka mor'a moo, hlahloba sehokelo sa relay; haeba e hlephile kapa e silafetse, e hloekise kapa e kopanye hape ka mokhoa o sireletsehileng. Ebe, sebelisa multimeter ho lekola khoele le likhokahano tsa relay: haeba khoele e sa fumane hajoale, ho ka 'na ha hlokahala hore relay e nkeloe sebaka; haeba likhokahano li sa kopane hantle, li lokela ho hloekisoa kapa ho nkeloa sebaka. Haeba mehato ena e sa rarolle bothata, buisana le setsebi sa setsebi ho qoba ho baka tšenyo e eketsehileng tsamaisong ea motlakase.
Ka bokhutšoanyane, li-relay li etsa mesebetsi ea bohlokoa ka har'a lipotoloho tsa likoloi-ho kenyeletsoa tšireletso, matlafatso ea mats'oao, taolo le kabo ea motlakase. Ho utloisisa karolo ea li-relay ho bohlokoa bakeng sa tokiso e sebetsang le tokiso ea sistimi ea motlakase ea koloi. Ka mefuta e fapaneng ea li-relay tse fumanehang ho lumellana le litlhoko tse fapaneng, li kenya letsoho haholo molemong oa kakaretso le ts'ebetso ea koloi.
