Umahluko phakathi koMnxibelelanisi we-DC kunye ne-AC yoQhagamshelwano

1. Umnxibelelanisi we-AC wamkela isixhobo sokucima ipleyiti ye-arc, ngelixa i-DC contactor ithatha isixhobo sokucima i-arc esivuthela ngokuvuthela.

2. Isiqalo sokuqala se-AC contactor sikhulu, kwaye i-frequency yayo yokusebenza ifikelela malunga namaxesha angama-600 / h, kwaye i-frequency yokusebenza ye-DC contactor inokufikelela kumaxesha angama-1200 / h.

3. Intsimbi yentsimbi ye-AC contactor iya kuvelisa i-eddy current kunye nokulahleka kwe-hysteresis, ngelixa i-DC contactor ayinayo ilahleko yentsimbi. Ngoko ke, intsimbi yentsimbi ye-AC contactor yenziwe ngamashidi ensimbi ye-silicon elaminethiweyo afakwe kwi-insulated ukusuka komnye nomnye, kwaye ahlala enziwe kwimilo ye-E; undoqo wentsimbi ye-DC contactor yenziwe ngentsimbi yonke ethambileyo, kwaye uninzi lwazo lwenziwa kwimilo ye-U.

4. Ekubeni i-AC contactor idlula i-single-phase amandla e-AC, ukuphelisa ukungcangcazela kunye nengxolo eyenziwa yi-electromagnetic, i-short-circuit ring ifakwe ekupheleni kobuso bentsimbi ye-static, ngelixa i-DC contactor ayifuni.

5. I-AC contactor inokutshintshwa kwi-DC contactor ngexesha likaxakeka, kwaye ixesha lokutsala alikwazi ukudlula iiyure ze-2 (kuba ukutshatyalaliswa kobushushu be-coil ye-AC kubi ngaphezu kwe-DC, echongwa yizakhiwo zabo ezahlukeneyo. ). Kungcono ukuyisebenzisa ixesha elide. Kukho i-resistor kwikhoyili ye-AC, kodwa i-DC ayithathi indawo yekontraka ye-AC.

6. Inani le-coil lijika le-AC contactor lincinci, kwaye inani le-coil lijika le-DC contactor likhulu. Umthamo wekhoyili unokuhlukaniswa. Kwimeko yangoku ngokugqithisileyo kwisekethe ephambili (Ie> 250A), umnxibelelanisi usebenzisa i-series double windings.

7. Ukusabela kwekhoyili ye-DC relay inkulu kwaye ikhoyo incinci. Ukuba kuthiwa akuyi konakaliswa ukuba ixhunyiwe kumandla we-AC, lixesha lokuyikhulula. Nangona kunjalo, ukusabela kwekhoyili ye-AC relay incinci, kwaye yangoku inkulu. Ukuba idibaniswe nombane othe ngqo, ikhoyili iya konakala.

8. Umnxibelelanisi we-AC unomsesane omfutshane-mfutshane kwintsimbi yentsimbi. Ngokomgaqo, akufuneki kubekho umnxibelelanisi we-AC kwi-DC contactor. Undoqo wentsimbi ngokubanzi ulayitiwe ngamashiti ensimbi ye-silicon ukunciphisa i-eddy yangoku kunye nemagnethi eveliswa yimagnethi etshintshanayo kumbindi wentsimbi. Ukulahleka kwe-Hysteresis ukuphepha ukugqithiswa kwentsimbi yentsimbi. Intsimbi engundoqo kwi-coil ye-DC contactor ayivelisi imisinga ye-eddy, kwaye i-iron ye-DC ayinayo ingxaki yokufudumeza, ngoko ke i-iron ingenziwa ngentsimbi ye-monolithic okanye isinyithi. Ikhoyili yesekethe ye-DC ayinayo i-inductive reactance, ngoko ke i-coil inenani elikhulu lokujika, ukuxhathisa okukhulu, kunye nelahleko enkulu yobhedu. Ngoko ke, ukufudumeza kwekhoyili ngokwayo yinto ephambili. Ukwenza i-coil ibe ne-heat dissipation efanelekileyo, i-coil ivame ukwenziwa ibe yi-cylindrical shape ende kwaye encinci. Ikhoyili ye-AC contactor inokujika okumbalwa kunye nokuxhathisa okuphantsi, kodwa i-iron core ivelisa ubushushu. Ikhoyili ngokuqhelekileyo yenziwe ibe yi-cylindrical shape engqindilili kunye nemfutshane kunye nomsantsa othile phakathi kwayo kunye nombindi wentsimbi ukuququzelela ukutshatyalaliswa kobushushu kwaye kwangaxeshanye uthintele ikhoyili ukuba itshiswe ngokufudumeza. . Ukuphelisa i-vibration kunye nengxolo eyenziwa ngumbane we-electromagnetic, i-AC contactor ine-ring-circuit ring efakwe kwisiphelo sobuso bentsimbi ye-static, ngelixa i-DC contactor ayifuni i-ring-circuit ring.