Siyazi ukuthi i-relay yokuxhumana kufanele ibe nesihluku kakhulu kune-Mosfet evamile, umthwalo we-relay mkhulu kakhulu kune-Mosfet.

Umthwalo ojwayelekile we-DC motor motor, DC clutch kanye ne-DC solenoid valves, lezi zinguquko zomthwalo wengqondo zivaliwe, amakhulu noma izinkulungwane zama-volts amandla angemuva e-electromotive abangelwa ukuhlinzwa azothinta impilo ukuze kwehliswe noma konakale ngokuphelele.Yiqiniso uma i-current incane, njengalapho eduze kwe-1a, amandla e-electromotive angemuva azobangela ukukhishwa kwe-arc kuzoholela ekungcoleni kokuxhumana kwama-oxide ensimbi, okuholele ekuhlulekeni kokuxhumana, ukumelana nokuxhumana kuba kukhulu.

Lapha ukubalula, edluliselwe njalo behluleka, senza isivikelo, ngokuyinhloko sifuna ukunweba isikhathi ukusetshenziswa edluliselwe, ngoba othintana njalo ngeke carbon deposition, ukuguga, ubuso bayo njengoba ekuqaleni ehlanzekile.Ukumelana nokuxhumana kuzokhula ngokushesha lapho impilo yokudlulisela iseduze ekupheleni kwe-relay.

Ngokujwayelekile ngaphansi kwezinga lokushisa elivamile nokucindezela, ukhiye womoya we-dielectric breakdown voltage ungama-200 ~ 300V.ngakho-ke umgomo wethu ngokujwayelekile ukulawula i-voltage engaphansi kuka-200V noma i-voltage encane.

I-Diode evamile inganweba kakhulu isikhathi sokuyeka, i-diode evamile nochungechunge lwe-zener diode futhi ingabi nomthelela omkhulu esikhathini sokuhlehla.Uma kungumthwalo we-inductive.Lapho abathintwayo behlukene, isikhathi eside sokuhlehla isikhathi eside sokuhlanganisa, futhi sizonciphisa impilo yesevisi yoxhumana naye.Isibonelo, i-relay exhunywe ku-diode kukhoyili idinga isikhathi esingu-9.8ms ukukhulula abathintwayo.I-zener diode ne-diode yesiginali encane ndawonye, ​​ingafushaniswa ibe ngu-1.9ms.Ikhoyili ayixhunyiwe ku-diode reverse time relay 1.5ms.

Nakuba umthwalo we-inductive unzima ukuwuphatha kunomthwalo ophikisayo, ukusetshenziswa kokuvikela okuhle kuzokwenza ukusebenza kube ngcono.

Kunezindlela ezimbili zokuba kubi kakhulu, ungasebenzisi i.

Ngaphansi komthwalo we-DC, ukushintsha kwefrikhwensi ephezulu kungabangela ukugqwala okuphezulu okungavamile (inhlansi kagesi).

Uma isilawuli sefrikhwensi ephezulu ye-DC solenoid valve noma i-clutch, othintana nabo bangase babe nokugqwala okuluhlaza okwesibhakabhaka nokuluhlaza.Izizathu zalesi simo lapho zikhiqizwa yi-EDM (ukukhishwa kwe-arc kagesi), i-nitrogen ne-oxygen emoyeni ekuphenduleni okukhiqizwayo.

Isenzakalo sokudlulisa impahla

Uma impahla ixhumene, uguquko lwenzeka lapho ingxenye yokuxhumana incibilika noma ilimele.Ngokudluliswa kokuhamba kwesikhathi, ngisho nomcimbi uzovela ngezansi.Ngemva kwesikhathi esithile, oxhumana nabo abangalingani bazohlangana ndawonye.

Umthwalo uvame ukuvela ku-current enkulu (capacitive and inductive) inrush current, i-arc ekhiqizwayo izodala into enamathelayo.

Ngamaqhinga anamathelayo futhi amabili kuphela:

Isekhethi yokuvikela othintana naye kanye nezinto zokudlulisa ezibonakalayo njengesiliva, i-tin oxide, i-silver tungsten noma i-AgCu ekusetshenzisweni koxhumana nabo.

Ngokuvamile isimo se-concave sivela ku-cathode, isimo se-convex sivela ku-anode.