Bambancin Tsakanin Mai Tuntuɓar DC da AC Contactor

1. AC contactor rungumi dabi'ar Grid farantin baka extinguishing na'urar, yayin da DC contactor rungumi dabi'ar Magnetic hura baka kashe na'urar.

2. Farawa na AC contactor yana da girma, kuma mitar aikinsa ya kai kusan sau 600 / sa'a, kuma mitar aiki na DC contactor na iya kaiwa sau 1200/h.

3. A baƙin ƙarfe core na AC contactor zai samar da eddy halin yanzu da kuma hysteresis asarar, yayin da DC contactor ba shi da wani baƙin ƙarfe core asarar. Saboda haka, baƙin ƙarfe core na AC contactor an yi shi da laminated silicon karfe zanen gado da aka makaran daga juna, kuma sau da yawa sanya a cikin wani E siffar; Ƙarfe na DC contactor an yi shi da wani yanki na ƙarfe mai laushi, kuma yawancin su an yi su zuwa siffar U.

4. Tun da AC contactor wuce guda-lokaci AC ikon, don kawar da vibration da amo da electromagnet samar, wani gajeren kewaye zobe da aka saka a kan karshen fuskar da a tsaye baƙin ƙarfe core, yayin da DC contactor ba a bukata.

5. A AC contactor za a iya maye gurbinsu da DC contactor a cikin gaggawa, da kuma ja-in lokaci ba zai iya wuce 2 hours (saboda zafi dissipation na AC nada ya fi na DC, wanda aka ƙaddara ta daban-daban Tsarin). ). Zai fi kyau a yi amfani da shi na dogon lokaci. Akwai resistor a cikin AC coil, amma DC ba madaidaicin dan kwangilar AC bane.

6. Yawan jujjuyawar coil na AC contactor kadan ne, kuma adadin jujjuyawar na'urar DC yana da girma. Za a iya bambanta ƙarar ƙarar. A cikin yanayin matsanancin halin yanzu a cikin babban kewaye (Ie> 250A), mai tuntuɓar yana amfani da jerin iska biyu.

7. Reactance na nada na DC gudun ba da sanda yana da girma kuma na yanzu yana ƙarami. Idan aka ce ba zai lalace ba idan an haɗa shi da wutar AC, lokaci ya yi da za a sake shi. Koyaya, amsawar nada na relay AC kadan ne, kuma na yanzu yana da girma. Idan an haɗa shi da na'urar kai tsaye, na'urar za ta lalace.

8. Mai haɗin AC yana da zobe na gajeren lokaci akan tsakiyar ƙarfe. A ka'ida, kada a sami mai tuntuɓar AC akan mai tuntuɓar DC. Bakin ƙarfe gabaɗaya an lulluɓe shi da zanen ƙarfe na silicon don rage ƙarfin halin yanzu da maganadisu da ke haifar da musanyawan filin maganadisu a cikin tsakiyar ƙarfe. Asarar hysteresis don guje wa zazzaɓi na ainihin ƙarfe. Iron core a cikin DC contactor coil baya haifar da eddy igiyoyi, kuma DC iron core ba shi da matsalar dumama, don haka baƙin ƙarfe core za a iya yin monolithic simintin karfe ko jefa baƙin ƙarfe. Nada na da'irar DC ba ta da amsawa, don haka nada yana da adadi mai yawa na juyawa, babban juriya, da babban asarar tagulla. Saboda haka, dumama nada kanta shine babban abu. Don yin nada ya sami kyakyawan zafi mai kyau, yawanci ana yin nadar ta zama siffa mai tsayi da sirara. Nada na AC contactor yana da ƴan juyawa da low juriya, amma baƙin ƙarfe core haifar da zafi. Gabaɗaya ana yin coil ɗin ya zama siffa mai kauri da gajere mai tsayi tare da wani tazara tsakaninsa da ƙarfen ƙarfe don sauƙaƙe ɓarkewar zafi kuma a lokaci guda yana hana nada wuta ta ƙone. . Don kawar da rawar jiki da hayaniyar da wutar lantarki ke haifarwa, mai tuntuɓar AC yana da zobe na ɗan gajeren lokaci wanda aka saka a ƙarshen fuskar madaidaicin ƙarfe, yayin da mai tuntuɓar DC ba ya buƙatar zoben gajeriyar kewayawa.