Te Rerekētanga i waenga i te Kaiwhakataki DC me te Kaiwhakataki AC

1. Ka whakamahia e te kaiwhakataki AC te taputapu tinei pewa pereti matiti, i te wa e mau ana te kaiwhakataki DC i te taputapu tinei pewa hau.

2. Ko te timatanga o naianei o te AC contactor he nui, me tona auau mahi ki runga ki te 600 wa / h, me te auau mahi o te contactor DC taea tae ki runga ki te 1200 wa / h.

3. Ko te matua rino o te AC contactor ka whakaputa eddy current and hysteresis loss, i te DC contactor he kore mate rino matua. Na reira, ko te matua rino o te AC contactor he mea hanga mai i nga pepa rino silicon laminated e whakahiahia ana mai i tetahi ki tetahi, a he maha nga wa ka hangaia ki te ahua E; hanga te matua rino o te contactor DC he wahi katoa o te maitai ngawari, me te nuinga o ratou e hanga ki te āhua U.

4. I te mea ka tukuna e te kaiwhakataki AC te mana AC kotahi-waahanga, ki te whakakore i te wiri me te ngangau i hangaia e te hikohiko, ka whakauruhia he mowhiti poto-poto ki te pito o te mata rino pateko, i te mea kaore e hiahiatia te kaiwhakataki DC.

5. Ka taea te whakakapi i te AC contactor mo te DC contactor i roto i te ohorere, a ko te wa kume-i roto i te kore e taea te neke atu i te 2 haora (no te mea he kino atu te tohanga wera o te AC coil i te DC, e whakatauhia ana e o raatau hanganga rereke. ). He pai ake te whakamahi mo te wa roa. He parenga kei roto i te porowhita AC, engari ehara a DC i te whakakapi mo te kaikirimana AC.

6. He iti te maha o nga hurihanga porowhita o te AC contactor, a he nui te maha o nga huringa coil o te contactor DC. Ka taea te wehewehe te rōrahi o te pōkai. I roto i te take o te nui o naianei i roto i te ara iahiko matua (Ie> 250A), te contactor whakamahi raupapa awhiowhio rua.

7. He nui te reactance o te coil o te relay DC, he iti te ia. Mena ka kiia e kore e pakaru mena ka hono ki te hiko AC, kua tae ki te wa ki te tuku. Heoi, he iti te tauhohenga o te porowhita o te reera AC, he nui te ia. Mena ka honoa ki te au tika, ka pakaru te porowhita.

8. Ko te kaiwhakataki AC he mowhiti poto i runga i te matua rino. I roto i te parau tumu, i reira kia kore AC contactor i runga i te DC contactor. Ko te matua rino ka whakakikoruatia ki nga pepa rino silicon hei whakaiti i te naianei o te eddy me te aukumetanga i hangaia e te papa autō tauhou i roto i te matua rino. Ko te mate hysteresis hei karo i te wera o te matua rino. Ko te matua rino i roto i te DC contactor coil e kore e whakaputa i nga awa eddy, a, ko te matua rino DC kaore he raruraru o te whakamahana, na reira ka taea te hanga i te rino ki te rino monolithic maka rino ranei. Ko te porowhita o te ara iahiko DC kaore he reactance inductive, no reira he nui te hurihanga o te porowhita, he nui te parenga, he nui te mate parahi. Na reira, ko te whakamahana o te coil ano te mea nui. Kia pai ai te tohanga wera o te porowhita, ko te nuinga o te waa ka hangaia he porotakaroa roa me te kikokore. He iti noa nga hurihanga me te iti o te parenga o te porowhita o te kaiwhakataki AC, engari ko te matua rino ka whakaputa wera. I te nuinga o te wa ka hangaia te porotakaro ki te ahua porotakaroa matotoru me te poto me te waahi i waenganui i a ia me te matua rino kia pai ai te whakamahana o te wera me te wa ano ka aukati i te wera i te wera. . Hei whakakore i te wiri me te ngangau i hangaia e te hikohiko, he mowhiti porotiti-poto te kaiwhakataki AC kua whakauruhia ki runga i te mata mutunga o te matua rino pateko, i te mea kaore e hiahiatia e te kaiwhakataki DC he mowhiti poto.