Olona luhlu lusisiseko lwabaphuli beesekethe-ACB MCCB MCB

Izaphuli zesekethe, eziwela kwiindidi ezintathu ezibanzi.

Uhlobo lokuqala lubizwa ngokubai-air circuit breakeror i-air-insulated circuit breaker.Isimboli yesakhelo Isaphuli nguI-ACB, ekubeni igama elithi Air yiSekethe kunye negama elithi Breaker yi-Breaker.

Uhlobo lwesibini, olubizwaityala elibunjiweyo umaphuli wesekethe, yiI-MCCB;
Uhlobo lwesithathu lui-breaker circuit encinci, oluphawu lwakheMCB.

Uluhlu lwangoku olukalisiweyo lweI-ACB ivela kwi-1250A ukuya kwi-6300A, ubuninzi boluhlu lwangoku olukalisiweyo;Uluhlu lwangoku olukalisiweyo lweI-MCCB isuka kwi-10A ukuya kwi-1600A, kunye noluhlu lwangoku olukalisiweyo phakathi.I-MCB inoluhlu oluncinci lwangoku lokulinganisa, ukusuka kwi-6A ukuya kwi-63A, kodwa iyona nto ingundoqo yabaphuli beesekethe zasekhaya.
Kungakhathaliseki ukuba luhlobo luni na, ukugquma phakathi kwabafowunelwa ngaphakathi kwi-breaker circuit kuxhomekeke emoyeni, nto leyo ebangela ukuba i-MCB yaziwa ngokuba yi-air switch.
Ekubeni i-insulation phakathi kwabafowunelwa ngaphakathi kwi-breaker circuit ixhomekeke emoyeni, kuyimfuneko ukuba sixoxe ngeempawu zokuqhekeka komoya, kunye nolwazi oluthile olusisiseko lwe-arc.

2. Malunga ne-arc

Sibona i-arc njengelifu legesi eshushu.Ngaphakathi kwi-arc, kumaqondo obushushu angaphezu kwama-3,000 degrees, ii-electron ziphuma kwii-athom ukuze zenze iiyoni ezingalunganga, ezilahlekileyo ukuze iimolekyuli zomoya zibe yiplasma yonke, umxube wee-electron kunye negesi ye-ionic.

3. Umgama wokuvula we-breaker circuit

I-frame circuit breaker ACB, owona mgama umfutshane phakathi koqhagamshelwano oluhambayo kunye noqhagamshelwano olusisigxina lubizwa ngokuba ngumgama ovulekileyo.
Umgama wokuvula usetyenziselwa ukuqinisekisa ukuba umoya phakathi kwabafowunelwa abavulekileyo awufuni ukuphuka kombane.