Umehluko phakathi kwe-DC Contactor ne-AC Contactor

1. Isixhumi se-AC sithatha idivayisi yokucima i-arc ye-grid plate, kuyilapho i-DC contactor isebenzisa idivayisi yokucima i-arc evunguzayo.

2. I-current current ye-AC contactor inkulu, futhi imvamisa yayo yokusebenza ifika ezikhathini ezingaba ngu-600/h, futhi imvamisa yokusebenza ye-DC contactor ingafinyelela izikhathi ezifika ku-1200/h.

3. I-iron core ye-AC contactor izokhiqiza ukulahlekelwa kwe-eddy current kanye ne-hysteresis, kuyilapho i-DC contactor ingenayo ukulahlekelwa kwe-iron core. Ngakho-ke, i-iron core ye-AC contactor yenziwe ngamashidi ensimbi e-silicon e-laminated ahlanganiswe komunye nomunye, futhi ngokuvamile ayenziwa abe yi-E shape; umgogodla wensimbi we-DC contactor wenziwe ngocezu lonke lwensimbi emnene, futhi iningi lazo lenziwa libe yisimo esingu-U.

4. Njengoba i-AC contactor idlula amandla e-AC esigaba esisodwa, ukuze kuqedwe ukudlidliza nomsindo owenziwe yi-electromagnetic, indandatho yesifunda esifushane ishunyekiwe ebusweni bokuphela kwe-static iron core, kuyilapho i-DC contactor ingadingeki.

5. I-AC contactor ingafakwa esikhundleni se-DC contactor esimweni esiphuthumayo, futhi isikhathi sokudonsa asikwazi ukudlula amahora angu-2 (ngoba ukuchithwa kokushisa kwekhoyili ye-AC kubi kakhulu kune-DC, okunqunywa izakhiwo zabo ezahlukene). Kungcono ukuyisebenzisa isikhathi eside. Kunesivimbeli kukhoyili ye-AC, kodwa i-DC ayithathi indawo yenkontileka ye-AC.

6. Inombolo yokujika ikhoyili yesixhumi se-AC incane, futhi inani lokujika ikhoyili le-contactor ye-DC likhulu. Umthamo wekhoyili ungahlukaniswa. Endabeni yamanje ngokweqile kusekethe eyinhloko (okungukuthi> 250A), i-contactor isebenzisa uchungechunge lwama-windings aphindwe kabili.

7. Ukusabela kwekhoyili ye-DC relay kukhulu futhi yamanje incane. Uma kuthiwa ngeke ilimale uma ixhunywe kugesi we-AC, sekuyisikhathi sokuyikhulula. Nokho, ukusabela kwekhoyili ye-AC relay kuncane, futhi okwamanje kukhulu. Uma ixhunywe kugesi oqondile, ikhoyili izolimala.

8. Isixhumi se-AC sinendandatho yesiyingi esifushane kumongo wensimbi. Empeleni, akumele kube khona othintana naye we-AC ku-DC contactor. I-iron core ngokuvamile i-laminated ngamashidi ensimbi ye-silicon ukuze kuncishiswe i-eddy current kanye ne-magnetism ekhiqizwa inkambu kazibuthe eshintshanayo kumongo wensimbi. Ukulahlekelwa kwe-hysteresis ukugwema ukushisa ngokweqile kwe-iron core. I-iron core kukhoyili ye-DC contactor ayikhiqizi ama-eddy currents, futhi i-DC iron core ayinayo inkinga yokushisisa, ngakho-ke insimbi ephakathi ingenziwa ngensimbi ekhonjiwe ye-monolithic noma i-cast iron. Ikhoyili yesekethe ye-DC ayinakho ukusabela kwe-inductive, ngakho-ke ikhoyili inenani elikhulu lokuphenduka, ukumelana okukhulu, nokulahlekelwa okukhulu kwethusi. Ngakho-ke, ukushisa kwekhoyili ngokwayo kuyinto eyinhloko. Ukwenza ikhoyili ibe nokushabalalisa kahle ukushisa, ikhoyili ivamise ukwenziwa ibe yisimo se-cylindrical eside nesincane. Ikhoyili ye-AC contactor inokuphenduka okumbalwa kanye nokumelana okuphansi, kodwa i-iron core ikhiqiza ukushisa. Ikhoyili ngokuvamile yenziwa ibe yisimo esiyisilinda esijiyile futhi esifushane sibe negebe elithile phakathi kwayo nensimbi ukuze kube lula ukuqeda ukushisa futhi ngesikhathi esifanayo kuvimbele ukuthi ikhoyili ingashi ngokushisa. . Ukuze kuqedwe ukudlidliza nomsindo okhiqizwa uzibuthe kagesi, i-AC contactor inendandatho yesifunda esifushane eshumekwe ekugcineni komgogodla wensimbi emile, kuyilapho i-DC contactor ayidingi indandatho yesifunda esifushane.