IiMiniature circuit breakers (MCBs) kunye neeMolded Case circuit breakers (MCCBs) zombini zizixhobo ezibalulekileyo kwiinkqubo zombane ezisetyenziselwa ukukhusela ukugqithisa, iishort circuit, kunye nezinye iimpazamo. Nangona injongo ifana, kusekho umahluko phakathi kwezi zimbini ngokwe-capacitance, iimpawu zokukhubeka, kunye nomthamo wokuphuka.

I-Miniature Circuit Breaker (MCB)

A Isixhobo sokwaphula iisekethe esincinci (i-MCB)sisixhobo sombane esincinci esisetyenziselwa ukukhusela iisekethe kwiisekethe ezimfutshane kunye nokugqithisa. Sisetyenziswa kakhulu kwiindawo zokufakelwa kombane kwizakhiwo zokuhlala kunye nezorhwebo kwaye senzelwe ukukhusela iisekethe ngazinye endaweni yeenkqubo zombane ezipheleleyo.

Isixhobo sokwaphula iisekethe zetyala elibunjiweyo (MCCB)

A I-Molded Case Circuit Breaker (MCCB)sisiphuli-setyhula esikhulu nesiqinileyo esikwasetyenziselwa ukukhusela iisekethe kwiisekethe ezimfutshane, ukugqithisa, kunye nezinye iimpazamo. Ii-MCCB zenzelwe ukulinganisa okuphezulu kwamandla ombane kunye nombane kwizicelo zorhwebo, zoshishino kunye neendawo zokuhlala ezinkulu.

Umahluko ophambili phakathi kwe-MCCB kunye ne-MCB

Ulwakhiwo:Ii-MCB zincinci ngobukhulu kunee-MCCB. I-MCB ine-bimetallic strip egobayo xa umbane udlula umda othile, ivuse i-MCB ize ivule umbane. Kodwa ulwakhiwo lwe-MCCB luyinkimbinkimbi ngakumbi. Indlela ye-electromagnetic isetyenziselwa ukuqalisa umbane xa umbane udlula umda othile. Ukongeza, i-MCCB inokhuselo lwemagnethi olushushu ukukhusela kwi-overload kunye ne-short circuits.

Ubungakanani:Ii-MCB zihlala zisetyenziselwa umlinganiselo ophantsi wamandla ombane kunye nowe-voltage kwizakhiwo zokuhlala nezezorhwebo. Ngokwesiqhelo zifikelela kwi-1000V kwaye zinomlinganiselo ophakathi kwe-0.5A kunye ne-125A. Ii-MCCB zenzelwe ukusetyenziswa kwemizi-mveliso kunye nezorhwebo ezinkulu kwaye zinokuphatha umbane ukusuka kwi-10 amps ukuya kwi-2,500 amps.

Ukwaphula Amandla:Umthamo wokuqhekeza ngumlinganiselo ophezulu wombane wempazamo onokukhubeka kwi-circuit breaker ngaphandle kokubangela umonakalo. Xa kuthelekiswa ne-MCB, i-MCCB inomthamo ophezulu wokuqhekeza. Ii-MCCB zinokuphazamisa umbane ukuya kuthi ga kwi-100 kA, ngelixa ii-MCB zikwazi ukuphazamisa i-10 kA okanye ngaphantsi. Ke ngoko, i-MCCB ifanelekile ngakumbi kwizicelo ezinomthamo ophezulu wokuqhekeza.

Iimpawu zokukhubeka:Inzuzo ye-MCCB kunye ne-MCB kukulungelelaniswa kohambo. I-MCCB ivumela uhlengahlengiso lomntu ngamnye lokulibaziseka kohambo kunye nexesha ukuze kukhuselwe iinkqubo zombane kunye nezixhobo ngempumelelo. Ngokwahlukileyo koko, ii-MCB zinezicwangciso zohambo ezimiselweyo kwaye zihlala zenzelwe ukukhubeka ngexabiso elithile lombane.

Ixabiso:Ii-MCCB zidla ngokuba zibiza kakhulu kunee-MCB ngenxa yobukhulu bazo, iimpawu zazo zokusebenza, njl. Ii-MCCB ngokuyintloko zinomthamo ophezulu kunye nezicwangciso zokuhamba ezihlengahlengiswayo. Ii-MCB ngokubanzi ziyindlela engabizi kakhulu yokukhusela iinkqubo zombane ezincinci kunye nezixhobo.

Isiphelo

Ngamafutshane, ii-MCCB kunye nee-MCB zidlala indima ebalulekileyo ekukhuseleni iisekethe kwiisekethe ezimfutshane, ukugqithisa, kunye nezinye iimpazamo kwiinkqubo zombane. Nangona imisebenzi okanye iinjongo zezi zimbini zifana, kusekho umahluko ekusetyenzisweni. Ii-MCCB zilungele ngcono iinkqubo zombane ezinkulu ezineemfuno eziphezulu zamandla ombane, ngelixa ii-MCB zingabizi kakhulu kwaye zilungele ngakumbi ukukhusela iinkqubo zombane ezincinci kunye nezixhobo. Ukwazi ezi mahluko kuya kukunceda ukhethe i-circuit breaker efanelekileyo kwiimfuno zakho ezithile kwaye uqinisekise ukuba inkqubo yakho yombane ihlala ikhuselekile kwaye isebenza kakuhle.