Isikhokelo esipheleleyo sokuIiMinimable Circuit Breakers
yazisa
Kwihlabathi lanamhlanje eliphuhlileyo, umbane ubalulekile kubomi bethu bemihla ngemihla, unika amandla emakhaya ethu, kwiiofisi nakwimizi-mveliso. Ke ngoko, ukuqinisekisa ukusasazwa kwawo ngokukhuselekileyo nangokufanelekileyo kubaluleke kakhulu. Enye yezinto ezibalulekileyo kule nkqubo yii-miniature circuit breaker (MCB)Kweli nqaku, siza kujonga nzulu kwihlabathiiziphuli zesekethe ezincinci, behlola imisebenzi yabo, iintlobo kunye neenzuzo.
UkuqondaIiMinimable Circuit Breakers
A iqhekeza lesekethe elincincisisitshixo sombane esenzelwe ukukhusela iisekethe zombane ekonakalisweni ngumsinga ogqithisileyo, isekethe emfutshane okanye ukugqithiswa kakhulu. Ngokungafaniyo neefusi zemveli ezifuna ukutshintshwa emva kokusilela,iziphuli zesekethe ezincinciingasetyenziswa kwakhona ngokuseta kwakhona ngesandla xa ingxaki isonjululwe. Olu phawu lubenza kube lula kakhulu kwaye kube neendleko eziphantsi.
Imisebenzi yeiziphuli zesekethe ezincinci
1. Ukhuseleko olugqithisileyo:
Umsebenzi ophambili we-MCB kukubonelela ngokhuseleko olugqithisileyo. Nanini na xa umbane udlula umda obekiweyo (obonisa ingxaki kwisekethe), i-miniature circuit breaker iyaphazamiseka, iphazamise ukuhamba kombane. Eli nyathelo lithintela ukonakala kweesekethe kunye nezixhobo zombane ezixhunyiweyo.
2. Ukhuseleko lwesekethe emfutshane:
Isekethe emfutshane yenzeka ngenxa yoqhagamshelo oluthe ngqo lwee-live conductors ze-polarity ezahlukeneyo, nto leyo ebangela ukunyuka okukhulu komsinga ngequbuliso. I-MCB ifumanisa ngoko nangoko le meko ingaqhelekanga kwaye ivale ngokukhawuleza isethe, ithintela iingozi ezinokubakho ezifana nemililo yombane kunye nomonakalo wezixhobo.
3. Ukhuseleko lomthwalo ogqithisileyo:
Iisekethe zinomthamo othile womthwalo apho ukusilela okanye umonakalo unokwenzeka khona. Ii-Miniature circuit breakers zenzelwe ukujonga nokukhusela ubushushu obugqithisileyo obubangelwa kukugqithisa kakhulu. Ngokujonga rhoqo ukuhamba kombane, ii-MCB zikhusela iisekethe kwiingozi ezinokubakho.
Iintlobo zeeMiniature Circuit Breakers
1. Ipali enyeiqhekeza lesekethe elincinci:
Ii-Unipolar MCBs zihlala zisetyenziswa kwiindawo zokuhlala. Zikhusela iisekethe ezahlukeneyo ezifana nezibane, iisokhethi kunye nezixhobo. Ezi MCBs zinepali yokutshintsha, oko kuthetha ukuba zinokuhlukanisa umqhubi omnye kuphela.
2. Ipali ephindwe kabiniiqhekeza lesekethe elincinci:
I-BipolarIi-MCBZihlala zisetyenziswa kwiindawo ezifuna amandla aphezulu ombane. Zikhusela iisekethe ezinemithwalo enzima, njengeeyunithi zomoya opholileyo okanye izifudumezi zamanzi zombane. Ngokungafaniyo nee-unipolar MCBs, ii-bipolar MCBs zinokuqhawula iingcingo eziphilayo nezingathathi cala, ukuqinisekisa ukuhlukaniswa ngokupheleleyo.
3. Iipali ezintathuiqhekeza lesekethe elincinci:
Iipali ezintathuIi-MCBzisetyenziswa kakhulu kwiindawo zoshishino apho iinkqubo zamandla ezinamanqanaba amathathu zisebenza khona. Zibonelela ngokhuseleko lwe-short circuit, overload kunye ne-phase unbalance. Ezi miniature circuit breakers ziqinisekisa ukhuseleko lwee-three-phase motors kunye nezinye izixhobo ezinamandla aphezulu.
Iingenelo zeIiMinimable Circuit Breakers
1. Ukhuseleko oluphuculweyo:
Ii-MCB zibonelela ngokhuseleko oluphezulu xa kuthelekiswa neefusi zemveli kuba ziyakhubeka ngokuzenzekelayo xa kukho impazamo. Olu phawu lunciphisa umngcipheko wokutshayiswa ngumbane, umlilo, okanye umonakalo kwizixhobo ezibizayo.
2. Ukuseta kwakhona okulula:
Ngokungafaniyo neefusi, ekufuneka zitshintshwe emva kohambo ngalunye,Ii-MCBIngabuyiselwa ngokukhawuleza ngokujika iswitshi ngesandla. Oku kulula konga ixesha nomgudu kwaye kuqinisekisa ukubuyiselwa kwamandla ngokukhawuleza.
3. Ukusebenza kweendleko:
Ii-MCBzisisombululo esingabizi kakhulu kuba zingasetyenziswa izihlandlo ezininzi ngaphandle kokutshintshwa. Ukukwazi kwazo ukukhubeka ngokukhawuleza kuthintela umonakalo onokubakho, kunciphisa iindleko zokulungisa okanye zokutshintsha iisekethe nezixhobo zombane.
ukuququmbela
Iziphuli zesekethe ezincinciZidlala indima ebalulekileyo ekuqinisekiseni ukusasazwa kombane ngokukhuselekileyo nangokufanelekileyo. Zikhusela kwiingozi ezinokubakho kunye nomonakalo wezixhobo ngokukwazi kwazo ukukhusela kwi-overcurrents, ii-short circuits, kunye nokugqithisa. Zifumaneka kwiintlobo ezininzi kwaye zinezibonelelo ezininzi, ii-MCB ziyinxalenye ebalulekileyo yeenkqubo zethu zombane zokusetyenziswa kwezindlu nemizi-mveliso.
Ixesha lokuthumela: Agasti-28-2023