Uyiqonda njani i-MCB?— CNAISO

Uyiqonda njani i-MCB?— CNAISO

Ixesha lokukhutshwa : Mar-02-2022

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1.Ixabiso lesicelo seMCB.

 

I-Miniature circuit breakers ibhekisela kwizixhobo zokukhusela ezifakwe kwiintambo zokusabalalisa i-terminal, ngokukodwa ezisetyenziselwa ukugqithisa kunye nokukhusela i-short-circuit yemigca kunye nezixhobo zombane.Phantsi kwemeko yokuba imfuno yombane kwimveliso yesizwe kunye nokuphila iyaqhubeka nokukhula, kwaye uluntu lubeka phambili iimfuno eziphakamileyo zokhuseleko nokuthembeka kombane, kuyimfuneko ukwandisa isiphumo sokusebenza kothungelwano lokuhambisa.Ukufezekisa le njongo, kuyimfuneko ukuba ngokwesayensi kunye nengqiqo ifake i-breaker circuit encinci kumgca wokusabalalisa ophazamisekileyo ukukhusela ngokufanelekileyo umgca kunye nezixhobo zombane ukuphepha ukusebenza ngokugqithisileyo, okubangelwa ukhuseleko oluthile lomgca kunye nezixhobo zombane.umonakalo.Ngokwale mbono, abaphuli beesekethe ezincinci banexabiso eliphezulu lesicelo, kwaye kunentsingiselo enkulu ukuphanda ngenkuthalo kunye nokuphuhlisa abaphuli beesekethe ezincinci.

 

2. Intshayelelo kuMCB?

 

I-miniature circuit breaker, ebizwa ngokuba yi-MCB (I-Micro Circuit Breaker), sesona sixhobo sisetyenziswa kakhulu sokukhusela i-terminal ekwakheni izixhobo zokuhambisa amandla ombane.Isetyenziselwa isigaba esisodwa kunye nesigaba sesithathu sesiphaluka esifutshane, ukugqithiswa kunye nokukhuselwa kwe-overvoltage ngaphantsi kwe-125A, kubandakanywa i-pole-pole 1P, i-2-pole 2P, i-3-pole 3P, kunye ne-4P-pole 4P.Inemisebenzi yokukhusela ngakumbi kunokutshintsha kwemela.

 

3. NjaniMCB Umsebenzi?

Ii-breaker circuits ezincinci zenziwe ngeendlela zokusebenza, oonxibelelwano, izixhobo zokukhusela (ukukhutshwa okuhlukeneyo), kunye neenkqubo zokucima i-arc.Abafowunelwa bayo abaphambili baqhutywa ngesandla okanye bavalwe ngombane.Emva kokuba uqhagamshelwano oluphambili luvaliwe, indlela yohambo lwasimahla ivalela umfowunelwa oyintloko kwindawo evaliweyo.I-coil yokukhutshwa kwe-overcurrent kunye ne-thermal element yokukhululwa kwe-thermal idibaniswe kwichungechunge kunye nesekethe eyintloko, kwaye i-coil yokukhutshwa kwe-undervoltage ixhunywe ngokuhambelana nokunikezelwa kwamandla.Xa isiphaluka sifutshane okanye sigxininiswe kakhulu, i-armature yokukhululwa kwe-overcurrent itsalwa ukuze yenze inkqubo yokukhululwa kwamahhala, kwaye uqhagamshelwano oluphambili luqhawula isiphaluka esiphambili.Xa i-circuit igcwele kakhulu, i-thermal element yokukhutshwa kwe-thermal iya kufudumala kwaye igobe i-bimetal, ityhale indlela yokukhululwa yamahhala ukuba isebenze.Xa isiphaluka singaphantsi, i-armature ye-undervoltage release ikhutshwe.Kwakhona uvule indlela yohambo lwasimahla

 

4.Kutheni uYueqing AIso?

4.1: Ubunjineli obugcweleyo kunye nenkxaso yobugcisa: Abavelisi be-3 abaqeqeshiweyo, kunye neqela lenkonzo yobugcisa.

4.2: Umgangatho nguNo1, inkcubeko yethu.

4.3: Amaxesha okukhokela ngokukhawuleza: “Ixesha ligolide” kuwe nakuthi

4.4: 30min impendulo ngokukhawuleza: sineqela lobuchwephesha, 7 * 20H

Fumana ukuthembela kwabathengi ngenxa yodumo lwabo oluqinisekisiweyo lokuthembeka, ukusebenza kunye nobomi obude.

 

 

Ukuba unombuzos  okanye nayiphi na imveliso efunekayo, nceda uzive ukhululekile ukuba uqhagamshelane nam

 

Thumela uMbuzo Wakho Ngoku