I-Miniature circuit breakers (MCBs) kunye ne-molded case circuit breakers (MCCBs) zombini zizixhobo ezibalulekileyo kwiinkqubo zombane ezisetyenziselwa ukukhusela ukugqithiswa, iisekethe ezimfutshane kunye nezinye iimpazamo. Nangona injongo ifana, kusekho ukungafani phakathi kwezi zimbini ngokubhekiselele kwi-capacitance, iimpawu zokukhubeka, kunye nokwaphulwa kwamandla.

Iqhekeza leSekethe eliNcinci (MCB)

A Isaphuli sesekethe esincinci (MCB)sisixhobo sombane esibumbeneyo esisetyenziselwa ukukhusela iisekethe kwiisekethe ezimfutshane kunye nokugcwala. Ngokuqhelekileyo isetyenziselwa ukufakelwa kombane kwizakhiwo zokuhlala kunye nezorhwebo kwaye yenzelwe ukukhusela iisekethe zomntu ngamnye kuneenkqubo zombane ezipheleleyo.

Ityala elibunjiweyo lesaphuli sesekethe (MCCB)

A I-Molded Case Circuit Breaker (MCCB)I-breaker circuit enkulu, eyomeleleyo ekwasetyenziselwa ukukhusela iisekethe kwiisekethe ezimfutshane, ukugcwala, kunye nezinye iimpazamo. Ii-MCCBs zenzelwe amandla ombane aphezulu kunye nemilinganiselo yangoku yorhwebo, ishishini kunye nezicelo ezinkulu zokuhlala.

Umahluko ophambili phakathi kwe-MCCB kunye ne-MCB

Ulwakhiwo:Ii-MCBs zixinene ngakumbi ngobukhulu kune-MCCBs. I-MCB iqulethe i-bimetallic strip egoba xa i-current idlula umda othile, ibangela i-MCB kunye nokuvula isiphaluka. Kodwa ulwakhiwo lwe-MCCB luntsonkothile ngakumbi. Umtshini we-electromagnetic usetyenziselwa ukuqalisa isekethe xa umsinga udlula umda othile. Ukongeza, i-MCCB inokhuseleko lwemagnethi ye-thermal ukukhusela ekugqithiseni kunye neesekethe ezimfutshane.

Umthamo:Ii-MCBs ziqhele ukusetyenziselwa ukulinganisa okuphantsi kwangoku kunye nombane kwizakhiwo zokuhlala nezorhwebo. Ngokuqhelekileyo ukuya kuthi ga kwi-1000V kunye nemilinganiselo phakathi kwe-0.5A kunye ne-125A. Ii-MCCBs zenzelwe ushishino kunye nezicelo ezinkulu zorhwebo kwaye ziyakwazi ukusingatha imisinga ukusuka kwi-10 amps ukuya kwi-2,500 amps.

Ukwaphulwa kwesakhono:Umthamo wokuqhawula ubuninzi besiphoso sangoku i-breaker circuit inokuhamba ngaphandle kokwenza umonakalo. Xa kuthelekiswa ne-MCB, i-MCCB inomthamo ophezulu wokuqhawula. I-MCCBs inokuphazamisa imisinga ukuya kwi-100 kA, ngelixa i-MCBs ikwazi ukuphazamisa i-10 kA okanye ngaphantsi. Ngoko ke, i-MCCB ifaneleke ngakumbi kwizicelo ezinomthamo ophezulu wokuqhawula.

Iimpawu zokuhamba:I-advanteji ye-MCCB kunye ne-MCB yisethingi yohambo oluhlengahlengiswayo. I-MCCB ivumela ukulungiswa komntu ngamnye kohambo lwangoku kunye nokulibaziseka kwexesha lokukhusela okusebenzayo kweenkqubo zombane kunye nezixhobo. Ngokwahlukileyo, ii-MCBs zinesetingi zohambo olusisigxina kwaye ngokwesiqhelo ziyilelwe ukuhamba ngexabiso elithile langoku.

Iindleko:Ii-MCCBs zikholisa ukuba zibiza kakhulu kune-MCBs ngenxa yobukhulu bazo, iimpawu ezisebenzayo, njl. njl. Ii-MCCBs zinomthamo ophezulu kunye nezicwangciso zohambo ezilungelelanisiweyo. Ii-MCBs ngokuqhelekileyo lukhetho oluphantsi kweendleko zokukhusela iinkqubo zombane ezincinci kunye nezixhobo.

Ukuqukumbela

Isishwankathelo, ii-MCCBs kunye ne-MCBs zidlala indima ebalulekileyo ekukhuseleni iisekethe kwiisekethe ezimfutshane, ukulayisha ngaphezulu, kunye nezinye iimpazamo kwiinkqubo zombane. Nangona imisebenzi okanye iinjongo zezi zimbini zifana, kusekho ukungafani kokusetyenziswa. Ii-MCCBs zifaneleka ngakumbi kwiinkqubo zombane ezinkulu ezineemfuno eziphezulu zangoku, ngelixa ii-MCBs zineendleko eziphezulu kwaye zifaneleke kangcono ukukhusela iinkqubo zombane ezincinci kunye nezixhobo. Ukwazi lo mahluko kuya kukunceda ukhethe i-breaker circuit efanelekileyo kwiimfuno zakho ezithile kwaye uqinisekise ukuba inkqubo yakho yombane ihlala ikhuselekile kwaye isebenza kakuhle.