UkuqondaAma-circuit BreakerAmadivayisi Okuphepha Abalulekile Ezinhlelweni Zikagesi
Ama-circuit breaker ayizingxenye ezibalulekile ezinhlelweni zikagesi, asebenza njengezinto zokuvikela ukuvimbela umonakalo obangelwa ukugcwala ngokweqile kanye nama-short circuit. Ama-circuit breaker aklanyelwe ukuvala ngokuzenzakalela ukuhamba kukagesi lapho kutholakala iphutha, ngaleyo ndlela kuqinisekiswe ukuphepha kohlelo lukagesi kanye nabasebenzisi balo. Lesi sihloko sizobheka ngokujulile imisebenzi, izinhlobo, kanye nokubaluleka kwama-circuit breaker emishini kagesi yesimanje.
Umsebenzi oyinhloko we-circuit breaker ukuvula nokuvala i-electrical circuit. Ngokungafani nama-fuse okumele ashintshwe ngemva kokuba evuthuze, ama-circuit breaker angasethwa kabusha ngemva kokuba ekhubekile, okwenza abe yindlela yokuvikela kagesi elula nephumelelayo. Uma kwenzeka iphutha likagesi njenge-short circuit noma i-overload, i-circuit breaker ithola ugesi ongavamile bese inqamula i-electrical current, ivimbele izingozi ezingaba khona njengemililo kagesi noma umonakalo wemishini.
Kunezinhlobo eziningi zama-circuit breaker, ngayinye eyenzelwe izinhlelo zokusebenza ezithile kanye nezindawo ezithile. Izinhlobo ezivame kakhulu zifaka:
1. I-Miniature Circuit Breaker (MCB): Lolu hlobo lwe-circuit breaker lusetshenziswa ezindaweni zokuhlala nezentengiselwano ukuvikela ekugcwaleni ngokweqile kanye nama-short circuit. Ama-miniature circuit breaker anesilinganiso se-voltage esiphansi futhi avame ukusetshenziswa emishinini yokusabalalisa amandla.
2. I-Residual Current Breaker (RCCB): Lawa ma-circuit breaker, aziwa nangokuthi ama-Residual Current Devices (RCD), avikela amaphutha omhlaba ngokuthola ukungalingani kwamandla kagesi. Abalulekile ekuvimbeleni ukushaqeka kukagesi futhi avame ukusetshenziswa ezindaweni ezimanzi njengamagumbi okugeza namakhishi.
3. I-Molded Case Circuit Breaker (MCCB): Lolu hlobo lwe-circuit breaker lusetshenziswa ezisetshenziswa ezimbonini futhi lungaphatha izilinganiso zamandla aphezulu. Ama-MCCB ahlinzeka ngokuvikelwa kokulayisha ngokweqile, i-short circuit, kanye namaphutha omhlaba futhi afanele izinhlelo zikagesi ezinkulu.
4. Ama-Air Circuit Breaker (ACB): Ama-ACB aklanyelwe ukusetshenziswa kwamandla kagesi aphezulu futhi asetshenziswa eziteshini ezincane nasezitshalweni ezinkulu zezimboni. Angaphatha imithwalo yamandla kagesi ephezulu futhi ahlinzeke ngokuvikelwa okuqinile emaphutheni kagesi.
Ukubaluleka kwama-circuit breaker akunakuphikiswa. Adlala indima ebalulekile ekuqinisekiseni ukuphepha nokuthembeka kwezinhlelo zikagesi. Ngokuvimbela ukugcwala ngokweqile kanye nama-short circuit breaker, ama-circuit breaker asiza ekuvikeleni hhayi nje kuphela ingqalasizinda kagesi, kodwa futhi nemishini nezinto zikagesi ezixhunywe kuyo. Lokhu kuvikelwa kubaluleke kakhulu ezindaweni zezentengiselwano nezezimboni, lapho ukwehluleka kwemishini kungabangela ukulahlekelwa okukhulu kwezezimali kanye nezingozi zokuphepha.
Ngaphezu kwemisebenzi yazo yokuvikela, ama-circuit breaker athuthukisa ukusebenza kahle kwezinhlelo zikagesi. Ngokuphatha ngokuphephile imithwalo kagesi, ama-circuit breaker avumela ukuhlanganiswa kwemithombo yamandla avuselelekayo njengamaphaneli elanga nama-wind turbines kugridi. Lokhu kuzivumelanisa nezimo kubalulekile njengoba umhlaba usondela ezixazululweni zamandla ezihlala isikhathi eside.
Ukugcinwa nokuhlolwa njalo kwama-circuit breaker kubalulekile ukuqinisekisa ukuthembeka kwawo nokusebenza kahle. Ochwepheshe bakagesi batusa ukuhlolwa njalo ukuze kutholakale izimpawu zokuguguleka, ukugqwala, noma ukungasebenzi kahle. Le ndlela yokuqapha isiza ukuthola izinkinga ezingaba khona ngaphambi kokuba zibe izinkinga ezinkulu.
Ngamafuphi, ama-circuit breaker ayithuluzi lokuphepha elibalulekile ezinhlelweni zikagesi, ahlinzeka ngokuvikelwa kokulayisha ngokweqile kanye nokwe-short circuit. Kunezinhlobo eziningi zama-circuit breaker, afanele ukusetshenziswa okuhlukene, okuqinisekisa ukuphepha nokusebenza kahle kwemishini kagesi. Njengoba ubuchwepheshe buqhubeka nokuthuthuka, ama-circuit breaker azoqhubeka nokuba yingxenye ebalulekile ekuvikeleni ingqalasizinda kagesi, awenze abe yithuluzi elibalulekile kubasebenzisi basemakhaya nasezimbonini. Ukuqonda umsebenzi kanye nokubaluleka kwama-circuit breaker kubalulekile ekugcineni indawo yamandla ephephile nethembekile.
Isikhathi sokuthunyelwe: Meyi-22-2025