Tikudziwa kuti kulumikizidwa kolumikizana kuyenera kukhala kwankhanza kuposa Mosfet wamba, katundu wolandila ndi wamkulu kuposa Mosfet.

Wamba DC load DC motor, DC clutch ndi DC solenoid mavavu, izi zosinthira katundu watsekedwa, mazana kapena masauzande a volts kumbuyo electromotive mphamvu chifukwa cha opareshoni adzakhudza moyo kuchepetsa kapena ngakhale kuwonongeka kwathunthu.Kumene ngati panopa ndi ang'onoang'ono, monga pamene pafupi 1a, kumbuyo electromotive mphamvu adzachititsa arc kumaliseche kumaliseche adzatsogolera kuipitsa kukhudzana oxides zitsulo, zomwe zinachititsa kulephera kukhudzana, kukana kukhudzana amakhala lalikulu.

Apa kuti titchule, kupatsirana kumalephera nthawi zonse, timateteza, makamaka tikufuna kuwonjezera nthawi yogwiritsira ntchito polumikizirana, chifukwa olumikizana amakhala nthawi zonse amakhala ndi mpweya, kukalamba, pamwamba pake ngati koyera.Kukaniza kukhudzana kudzawonjezeka mofulumira pamene moyo wa relay uli pafupi ndi mapeto a relay.

General pa kutentha wabwinobwino ndi kukakamizidwa, mpweya kiyi dielectric kuwonongeka voteji ndi 200 ~ 300V.kotero cholinga chathu chonse ndikuwongolera voteji pansi pa 200V kapena voteji yaying'ono.

Diode yokhazikika imatha kukulitsa kwambiri nthawi yosiya maphunziro, ma diode wamba ndi zener diode mndandanda osati kukopa kwambiri nthawi yobwerera.Ngati ndi inductive katundu.Pamene kulankhula padera, yaitali n'zosiyana nthawi yaitali arcing nthawi, ndipo adzafupikitsa moyo utumiki wa kukhudzana.Mwachitsanzo, chingwe cholumikizira cholumikizidwa ndi diode pa koyilo chimafuna nthawi ya 9.8ms kuti amasule zolumikizira.The zener diode ndi diode yaing'ono siginecha pamodzi, akhoza kufupikitsidwa kwa 1.9ms.Koyiloyo simalumikizidwa ndi diode reverse time relay 1.5ms.

Ngakhale katundu wochititsa chidwi ndi wovuta kupirira kusiyana ndi katundu wotsutsa, kugwiritsa ntchito chitetezo chabwino kumapangitsa kuti ntchitoyo ikhale yabwino.

Pali njira ziwiri kukhala zoipa kwambiri, musagwiritse ntchito.

Pansi pa katundu wa DC, kusintha kwafupipafupi kungayambitse dzimbiri zosazolowereka (kuthwa kwamagetsi).

Pamene kuwongolera pafupipafupi kwa DC solenoid valavu kapena clutch, kulumikizana kumatha kuchitika dzimbiri lobiriwira.Zifukwa za izi ndi pamene amapangidwa ndi EDM (electric arc discharge), nayitrogeni ndi mpweya mu mpweya mu zomwe kwaiye.

Chochitika chosinthira zinthu

Pamene zinthuzo zikukhudzana, kusintha kumachitika pamene gawo lolumikizana limasungunuka kapena kuwonongeka.Ndi kusamutsidwa kwa kupita kwa nthawi, ndipo ngakhale chodabwitsa chidzawonekera pansipa.Pakapita nthawi, zolumikizana zosagwirizana zimalumikizana.

Katunduyo nthawi zambiri imapezeka pakalipano (capacitive ndi inductive) inrush current, arc yopangidwa imayambitsa chodabwitsa.

Kwa njira zomata komanso ziwiri zokha:

Kulumikizana ndi chitetezo cholumikizirana ndi zinthu zosinthira zinthu monga siliva, tin oxide, tungsten siliva kapena AgCu pogwiritsa ntchito kulumikizana.

Nthawi zambiri mawonekedwe a concave amawoneka mu cathode, mawonekedwe a convex amawonekera mu anode.