Te tikanga o ngā tawhā rerekē i roto i te anga o te kaiwawao ara iahiko (MCCB) kua whakakikoruatia

Ngā whati ara iahiko kua whakarewaina (MCCB) he wāhanga matua i roto i ngā whatunga tohatoha hiko, e whakarato ana i te tiaki mai i ngā ara iahiko poto me ngā taumaha rawa. He mea nui te mārama ki ngā tawhā rerekē i roto i te pouaka MCCB kia tika ai te mahi me te haumaru o te pūnaha hiko.

Ko te ngaohiko whakatauranga Ue ko te ngaohiko pūnaha, he 5% teitei ake i te ngaohiko ingoa i te kawenga hiko. Kua hangaia te kaiwawao ara iahiko kirihou kia mahi me te ngaohiko ātete nekehanga whakatauranga Uimp=12KV me te ngaohiko whakamarumaru whakatauranga Ui 400V. Me mōhio kei te neke ake te ngaohiko whatunga tohatoha i te ngaohiko whakamarumaru whakatauranga Ui hei ārai i tētahi tūponotanga mōrearea.

Ko te whakatauranga o te au o te 125 Amp e tohu ana i te kaha kawe au mōrahi o te MCCB. Hei tāpiri, ko te tawhā au mahi inamata Ii o te tukunga aukume ko 10In, ko In he 10 ngā wā o te au whakatauranga (1250A), e whakarite ana i te mahi tere me te whai hua i raro i ngā āhuatanga porowhita poto.

Kei te taha matau o te anga whati ara iahiko kua whakakikoruatia, ko te kaha wehewehe ara iahiko poto kua whakatauria ko Icu=35KA me te kaha wawahi ara iahiko poto kua whakatauria ko Ics=22KA e whakaatu ana i te kaha o te whati ara iahiko kua whakakikoruatia ki te whakahaere i ngā āhuatanga ara iahiko poto me te kore e pā ki te haumaru. Kua hangaia te MCCB kia whai awhe pāmahana taiao mahi mai i te -5°C ki te 40°C me te auau o te 50/60 Hz, kia pai ai mō ngā āhuatanga taiao rerekē.

Hei tāpiritanga, ka tutuki i te MCCB ngā paerewa whakaputa IEC/EN60947-2, kia tutuki ai ngā ture kounga me te haumaru. E whakanui ana tēnei paerewa i te pono me te mahi a te MCCB, kia marino ai te hinengaro o ngā kaiwhakamahi mō tōna whai huatanga mahi me tōna roanga o te ora.

Hei whakarāpopototanga, he mea nui te mārama ki ngā tawhā i roto i te pouaka MCCB hei whiriwhiri i te taputapu tiaki ara iahiko tika mō te pūnaha hiko. Mā tōna hoahoa pakari me te tutuki i ngā paerewa whakaputa, ka whakarite te MCCB i te mahi haumaru me te pono i roto i ngā momo tono.