Isihloko: Yazi Umehluko PhakathiAma-Miniature Circuit BreakersfuthiAma-Breaker Esekethe Ahlanganisiwe
Ama-circuit breaker ayingxenye ebalulekile yesistimu kagesi yesakhiwo. Asiza ekuvikeleni ikhaya lakho, ihhovisi noma impahla yebhizinisi ekugcwaleni ngokweqile kukagesi kanye nama-short circuit. Ama-circuit breaker amabili asetshenziswa kakhulu yi-miniature circuit breaker (I-MCB) kanye ne-molded case circuit breaker (I-MCCB). Nakuba zombili zifeza injongo efanayo, kukhona umehluko phakathi kwazo. Kule bhulogi, sizohlola lo mehluko.
1. Usayizi kanye nokusetshenziswa
Umehluko omkhulu phakathiI-MCBfuthiI-MCCBusayizi wazo. Njengoba igama lisho, ama-MCB mancane ngobukhulu futhi asetshenziswa ezicelweni zamandla aphansi afinyelela kuma-amps angu-125. Avame ukusetshenziswa ezicelweni zezindlu nezincane zezentengiselwano. Ama-MCCB, ngakolunye uhlangothi, makhulu futhi angaphatha imithwalo yamandla aphezulu afinyelela kuma-amps angu-5000. Avame ukusetshenziswa ezicelweni zezimboni nezentengiselwano ezidinga amandla amaningi.
2. Iqinile futhi ihlala isikhathi eside
I-MCCB inamandla futhi ihlala isikhathi eside kune-MCB. Ingabhekana nokucindezeleka okukhulu kukagesi futhi yakhelwe ukumelana nezimo ezinzima.Ama-MCCBngokuvamile zenziwe ngezinto eziqinile njenge-ceramic noma ipulasitiki ebunjiwe kune-Ama-MCB, ngokuvamile ezenziwe ngendlu yepulasitiki. Ama-MCB aklanyelwe ukusetshenziswa ezindaweni ezingabangeli zinkinga futhi akufanele abekwe ezintweni ezibola kakhulu noma emazingeni okushisa aphezulu.
3. Indlela yohambo
Kokubili ama-MCB kanyeAma-MCCBzenzelwe ukukhubeka lapho ugesi udlula umkhawulo othile. Kodwa-ke, izindlela ezizisebenzisayo ukukhubeka zihlukile. I-MCB inomshini wokuhamba we-magnetic oshisayo. Lo mshini usebenzisa umucu we-bimetal ofudumalayo futhi ugobe lapho ugesi udlula umkhawulo, okubangela ukuthi i-circuit breaker ikhubeke. I-MCCB inomshini wokuhamba we-electronic osebenzisa i-microprocessor ukuhlaziya ukugeleza kogesi. Uma ugesi udlula umkhawulo, i-microprocessor ithumela isignali ku-circuit breaker ukuthi ikhubeke.
4. Izindleko
Ama-MCBngokuvamile zibiza kancane kuneAma-MCCBLokhu kungenxa yokuthi zilula ngokuklama futhi zenziwe ngezinto ezishibhile. Futhi aziqinile kakhulu kune-MCCB futhi zinomthamo wokuthwala ugesi ophansi. Ama-MCCB abiza kakhulu ngenxa yomklamo wawo oyinkimbinkimbi nezinto ezisetshenziswayo, kodwa aqinile kakhulu futhi angaphatha imithwalo yamandla aphezulu.
5. Ukulungiswa
Ukulungiswa okudingekayo kwama-MCB kanyeAma-MCCBihluke kakhulu. I-MCB ilula ngokwakhiwa futhi ayidingi ukulungiswa okuningi. Kudingeka ihlolwe njalo ngugesi futhi ishintshwe uma inephutha. Ngakolunye uhlangothi, ama-MCCB adinga ukulungiswa okwengeziwe, njengokuhlolwa okuvamile kwamayunithi okuhamba ngogesi, angase aphelelwe yisikhathi ngokuhamba kwesikhathi futhi adinge ukushintshwa.
Ngamafuphi, i-MCB kanyeI-MCCBzinomsebenzi ofanayo, owukuvikela uhlelo lukagesi ekugcwaleni ngokweqile kanye nokujikeleza okufushane. Kodwa-ke, njengoba singabona, kukhona umehluko phakathi kwalezi ezimbili. Ama-MCB mancane, ahlala isikhathi eside futhi ashibhile, kantiAma-MCCBziqinile, zihlala isikhathi eside futhi zibiza kakhulu. Ukusetshenziswa kanye nezidingo zamanje yizinto eziyinhloko okufanele uzicabangele lapho ukhetha phakathi kwalezi ezimbili.
Isikhathi sokuthunyelwe: Juni-13-2023