Kusiyana Pakati pa DC Contactor ndi AC Contactor

1. AC contactor utenga gululi mbale Arc kuzimitsa chipangizo, pamene DC contactor utenga maginito kuwomba arc kuzimitsa chipangizo.

2. The poyambira panopa wa AC contactor ndi lalikulu, ndi mafupipafupi ake ntchito ndi pafupifupi 600 nthawi/h, ndi pafupipafupi opaleshoni DC contactor akhoza kufika ku 1200 nthawi/h.

3. Pakatikati chitsulo cha AC contactor adzatulutsa Eddy panopa ndi hysteresis imfa, pamene contactor DC alibe chitsulo pakati imfa. Choncho, pachimake chitsulo cha AC contactor amapangidwa laminated silicon mapepala zitsulo kuti insulated wina ndi mzake, ndipo nthawi zambiri amapangidwa E mawonekedwe; pachimake chitsulo cholumikizira cha DC chimapangidwa ndi chitsulo chonse chofewa, ndipo ambiri amapangidwa kukhala mawonekedwe a U.

4. Popeza AC contactor akudutsa limodzi gawo AC mphamvu, kuthetsa kugwedera ndi phokoso kwaiye maginito electromagnet, ndi lalifupi dera mphete ophatikizidwa pa mapeto a nkhope ya malo amodzi chitsulo pakati, pamene contactor DC si chofunika.

5. AC contactor akhoza m'malo ndi DC contactor mwadzidzidzi, ndipo kukoka-mu nthawi sangakhoze kupitirira 2 hours (chifukwa kutentha kutentha kwa AC koyilo ndi zoipa kuposa DC, amene anatsimikiza ndi mapangidwe awo osiyana ). Ndi bwino kuzigwiritsa ntchito kwa nthawi yaitali. Pali chopinga mu koyilo ya AC, koma DC siyolowa m'malo mwa kontrakitala wa AC.

6. Chiwerengero cha kutembenukira koyilo wa AC contactor ndi yaing'ono, ndipo chiwerengero cha koyilo kutembenukira kwa DC contactor ndi lalikulu. Kuchuluka kwa koyilo kungasiyanitsidwe. Pankhani ya mopitirira muyeso mu dera waukulu (Ie> 250A), ndi contactor ntchito mndandanda wawiri windings.

7. Kuchita kwa koyilo ya DC relay ndi yayikulu ndipo yapano ndi yaying'ono. Zikanenedwa kuti sizidzawonongeka ngati zitalumikizidwa ndi mphamvu ya AC, ndi nthawi yoti mutulutse. Komabe, kachitidwe ka koyilo ya AC relay ndi yaying'ono, ndipo pano ndi yayikulu. Ngati chikugwirizana ndi magetsi olunjika, koyiloyo idzawonongeka.

8. The AC contactor ali lalifupi-wazungulira mphete pa chitsulo pakati. Mfundo, pasakhale AC contactor pa DC contactor. Pakatikati pachitsulo nthawi zambiri amapangidwa ndi zitsulo zachitsulo za silicon kuti achepetse eddy pano ndi maginito opangidwa ndi maginito osinthasintha pakatikati pachitsulo. Kutayika kwa Hysteresis kupewa kutenthedwa kwachitsulo pachimake. Pachimake chitsulo mu DC contactor koyilo si kupanga eddy mafunde, ndipo DC chitsulo pachimake alibe vuto kutentha, choncho pachimake chitsulo akhoza kupangidwa ndi chitsulo monolithic kuponyedwa kapena chitsulo choponyedwa. Koyilo ya dera la DC ilibe ma inductive reactance, kotero koyiloyo imakhala ndi matembenuzidwe ambiri, kukana kwakukulu, ndi kutaya kwakukulu kwa mkuwa. Choncho, kutentha kwa koyilo palokha ndicho chinthu chachikulu. Kuti koyiloyo ikhale ndi kutentha kwabwino, koyiloyo nthawi zambiri imapangidwa kukhala mawonekedwe aatali komanso opyapyala a cylindrical. The koyilo wa AC contactor ali mokhota ochepa ndi kukana otsika, koma chitsulo pakati amapanga kutentha. Koyiloyo nthawi zambiri imapangidwa kukhala yokhuthala komanso yayifupi yozungulira yokhala ndi mpata wina pakati pake ndi chitsulo chachitsulo kuti zithandizire kutulutsa kutentha komanso nthawi yomweyo kuteteza koyiloyo kuti isatenthedwe ndi kutentha. . Kuthetsa kugwedera ndi phokoso kwaiye ndi maginito amagetsi, ndi AC contactor ali ndi mphete yochepa dera ophatikizidwa pa mapeto a nkhope ya malo amodzi chitsulo pakati, pamene contactor DC safuna mphete yochepa dera.