Ukuhlaziywa Komsebenzi Nokusetshenziswa Kwe-MCB Circuit Breaker

Ama-circuit breaker amancane(ama-MCB) ayizingxenye ezibalulekile ezinhlelweni zikagesi zesimanje, ahlinzeka ngokuvikelwa okubalulekile ekuthwaleni ngokweqile kanye namasekethe amafushane. Njengoba ukuphepha kukagesi kuba yinto ebaluleke kakhulu ezindaweni zokuhlala nezentengiselwano, ukuqonda imisebenzi nezinzuzo zama-MCB kubalulekile kunoma ubani ohilelekile ekufakweni noma ekulungisweni kukagesi.

Kuyini i-MCB?

I-miniature circuit breaker (MCB) iyidivayisi ye-electromechanical eyenzelwe ukuphazamisa ngokuzenzakalelayo isekethe kagesi uma ithola isimo sephutha, njengokugcwala ngokweqile noma isekethe esifushane. Ngokungafani nama-fuse endabuko, okumele ashintshwe ngemva kokuba eqhumile, ama-MCB angasethwa kabusha ngemva kokukhubeka, okwenza abe inketho elula nephumelelayo yokuvikela isekethe.

Indlela i-MCB esebenza ngayo

Ama-Miniature circuit breaker (ama-MCB) asebenza ngokuyinhloko ngokusekelwe ezindleleni ezimbili: ukushisa kanye ne-magnetic. Indlela yokushisa isebenzisa umucu we-bimetallic ogobayo ngenxa yesimo sokulayisha ngokweqile, ekugcineni obangela iswishi ukuvula isekethe. Indlela yokushisa, ngakolunye uhlangothi, iphendula esimweni se-short-circuit isebenzisa i-electromagnet evula iswishi cishe ngokushesha, ivimbela umonakalo ohlelweni lukagesi.

Izinhlobo ze-MCB

Kunezinhlobo eziningana zama-MCB, ngayinye eyenzelwe uhlelo oluthile:

1. Ama-circuit breaker amancane ohlobo B:Zilungele ukusetshenziswa ezindaweni zokuhlala, zingakwazi ukubhekana nemisinga yokungena esezingeni eliphakathi. Umsinga wazo okhubekayo uphindwe kathathu kuya kahlanu kunomsinga olinganiselwe.
2. Ama-Miniature Circuit Breaker Ohlobo C**:Ama-Type C miniature circuit breakers afanele ukusetshenziswa kwezentengiselwano nezimboni futhi ayakwazi ukumelana nemisinga ephezulu yokungena, okwenza afaneleke kakhulu emishinini efana nama-motor nama-transformer. Ane-trip current ephindwe ka-5 kuya ku-10 kunomsinga olinganiselwe.
3. I-MCB yohlobo lwe-D:Lawa ma-circuit breaker aklanyelwe izinhlelo zokusebenza ezisindayo, njengezinjini ezinkulu nama-transformer, futhi angaphatha ama-current currents angena ngokushesha izikhathi eziyi-10 kuya kwezingama-20 kunalawa alinganiselwe.
4. Uhlobo lwe-K kanye nohlobo lwe-Z lwe-MCB:Lawa ama-MCB akhethekile asetshenziselwa izinhlelo zokusebenza ezithile, njengokuvikela imithwalo ye-capacitive noma imishini kagesi ebucayi.

Izinzuzo zokusebenzisa i-MCB

1. Ukuphepha:Ama-Miniature circuit breaker aphephile kune-fuse. Anganqamula i-circuit ngokushesha uma kwenzeka iphutha, okunciphisa ingozi yomlilo kagesi kanye nomonakalo wemishini.
2. Ukulula:Ngokungafani nama-fuse adinga ukushintshwa ngemva kokwehluleka, ama-MCB angasethwa kabusha ngeswishi elula, okunciphisa isikhathi sokungasebenzi kanye nomsebenzi wokulungisa.
3. Okuqondile:Ama-MCB anikeza izilungiselelo zokuvikela ezinembile, ahlinzeka ngezixazululo ezenziwe ngokwezifiso ngokusekelwe ezidingweni ezithile zezinhlelo zikagesi.
4. Umklamo Oncane:Ama-MCB ngokuvamile mancane futhi mancane kune-fuse yendabuko, okwenza kube lula ukuwafaka ezindaweni ezixineneyo.
5. Kuqiza kahle:Nakuba ukutshalwa kwezimali kokuqala kuma-MCB kungase kube phezulu kune-fuse, isikhathi eside sazo kanye nezindleko zokulungisa ezincishisiwe kuzenza zibe ukukhetha okonga kakhulu ngokuhamba kwesikhathi.

Ukufakwa Nokunakekelwa

Ukufakwa nokugcinwa kahle kwama-miniature circuit breaker (ama-MCB) kubalulekile ekuqinisekiseni ukusebenza kwawo kahle. Qiniseka ukuthi ukhetha uhlobo lwe-MCB olufanele ngokusekelwe ezidingweni zomthwalo bese ulufaka ngokuhambisana namakhodi kagesi endawo. Ukuhlolwa okuvamile kufanele kwenziwe ukuqinisekisa ukuthi i-MCB isebenza kahle futhi ayikhombisi zimpawu zokuguguleka noma ukulimala.

Uyini umehluko phakathi kwe-MCB ne-MCCB?

Okokuqala, ama-MCB asetshenziswa kakhulu ekuvikeleni i-short-circuit kanye ne-overload ngokumelene ne-current ephansi (ngokuvamile ngaphansi kwama-ampere ayi-100), kuyilapho ama-MCCB esetshenziswa kakhulu ekuvikeleni i-short-circuit kanye ne-overload ngokumelene ne-current ephezulu (ngokuvamile ngaphezu kwama-ampere ayi-100). Lokhu kungenxa yemiklamo ehlukene yesakhiwo nezinto ezisetshenziswa ama-MCB nama-MCCB ukuze afake i-current nemithwalo ehlukene. Okwesibili, ama-MCB avame ukusebenzisa izingxenye ze-elekthronikhi njenge-relay kanye ne-thermal relay ukuze avikele, kuyilapho ama-MCCB esebenzisa amadivayisi emishini njengezivikeli ze-thermal-magnetic.

Ngokufigqiwe

Kalula nje, ama-miniature circuit breaker (ama-MCB) adlala indima ebalulekile ekuvikeleni izinhlelo zikagesi ekugcwaleni ngokweqile kanye nama-short circuits. Amandla awo okunikeza isivikelo esisheshayo nesithembekile, kanye nokulula kanye nokusebenza kahle kwezindleko, kuwenza abe yingxenye ebalulekile ekufakweni kukagesi kwezindlu nezentengiselwano. Njengoba ubuchwepheshe buqhubeka buthuthuka, ukubaluleka kwama-MCB ekuqinisekiseni ukuphepha kukagesi kuzokhula kuphela, okwenza kube kubalulekile kochwepheshe kanye nabanini bezindlu ukuqonda amakhono abo kanye nezinzuzo zabo.