Umehluko phakathi kwe-ACB ne-MCCB

I-air circuit breaker (I-ACB) kanyei-circuit breaker yekesi ebunjiwe (I-MCCB) yizinto ezimbili ezivame ukusetshenziswa kakhulu zokuvikela izifunda ezinhlelweni zikagesi. Nakuba zombili zisebenza umsebenzi oyisisekelo wokuvikela izifunda ekugcwaleni ngokweqile, izifunda ezimfushane, kanye nezinye izinkinga, kunemehluko omkhulu phakathi kwazo ezimbili ezenza zifanelekele izinhlelo zokusebenza ezahlukene.

Okokuqala, osayizi be-ACB kanye ne-MCCB bahluke kakhulu. Ama-ACB makhulu ngobukhulu nangomthamo futhi anezilinganiso zamanje ezisukela ku-400A kuya ku-6300A. Lokhu kuwenza abe ngcono ukusetshenziswa kumanethiwekhi okusabalalisa amandla, lapho umsebenzi wawo ukusabalalisa amandla kagesi nokuvikela imigqa kanye nemishini kagesi emaphutheni ahlukahlukene. Ama-MCCB, ngakolunye uhlangothi, mancane ngobukhulu nangomthamo futhi anezilinganiso zamanje ezisukela ku-10A kuya ku-800A. Avame ukusetshenziswa ukuvikela imigqa yokusabalalisa kanye nemishini ekuthwaleni ngokweqile, amasekethe amafushane kanye nama-undervoltage, futhi angahlinzeka nokuvikelwa kokusebenza kokuqala kwezimoto.

Omunye umehluko obalulekile phakathi kwe-ACB ne-MCCB umsebenzi wazo wokuvikela. I-tripper ehlakaniphile ye-air circuit breaker inemisebenzi eminingi yokuvikela njengokuvikela ukubambezeleka isikhathi eside, ukuvikela ukubambezeleka okufushane, ukuvikela okusheshayo, ukuvikela phansi, ukuvikela i-overvoltage, kanye nokuvikela ukulahleka kwesigaba. Ngaphezu kwemisebenzi yokuvikela, i-ACB iphinde inikeze imisebenzi yokulinganisa njengokulinganisa kwamanje, ukulinganisa i-voltage, ukulinganisa amandla, kanye nokulinganisa i-harmonic, kanye nemisebenzi yokusiza efana nokuxwayisa kusenesikhathi, ukuzixilonga, ukuqopha umlando wamaphutha, kanye nemisebenzi yokuhlola. Ngaphezu kwalokho, i-ACB ifakwe amakhono okuxhumana avumela ukuhlanganiswa okungenamthungo ohlelweni lukagesi olubanzi. Ngokuphambene nalokho, ama-circuit breaker akhiwe ngokubumbana ahlinzeka kakhulu ngokuvikela isikhathi eside, ukuvikela isikhathi esifushane (ukuvikela umthwalo omningi) kanye nokuvikela okusheshayo (ukuvikela i-short-circuit).

Ububanzi bokusetshenziswa kwe-ACB kanye ne-MCCB nabo buhlukile. I-ACB isetshenziswa kakhulu kumanethiwekhi amakhulu okusabalalisa amandla ngenxa yamandla ayo amanje aphezulu kanye nemisebenzi eminingi yokuvikela. Idlala indima ebalulekile ekuqinisekiseni ukusebenza okuthembekile nokuphephile kwezinhlelo zikagesi ngokuvimbela amaphutha ahlukahlukene kanye nokungafani. Ama-MCCB, ngakolunye uhlangothi, asetshenziswa ezindaweni zezentengiselwano nezimboni lapho amandla amanje aphansi anele ukuvikela ekugcwaleni ngokweqile, amasekethe amafushane, kanye nama-undervoltage. Avame ukusetshenziswa ukuvikela imigqa yokusabalalisa kanye nemishini futhi ahlinzeke ngesivikelo sokusebenza kokuqala kwezimoto.

Ngamafuphi, umehluko phakathi kwe-ACB ne-MCCB ungabangelwa usayizi wazo, imisebenzi yokuvikela kanye nobubanzi bokusetshenziswa. I-ACB inkulu ngobukhulu futhi ingahlinzeka ngemisebenzi yokuvikela ephelele kanye nokulinganisa futhi ifanele ukusetshenziswa kumanethiwekhi okusabalalisa amandla, kuyilapho i-MCCB incane kakhulu futhi ingahlinzeka ngemisebenzi yokuvikela edingekayo yemigqa yokusabalalisa encane kanye nemishini. Ukuqonda lo mehluko kubalulekile ekukhetheni idivayisi yokuvikela yesekethe efanele yesistimu kagesi ethile, ukuqinisekisa ukusebenza kahle kanye nokuphepha.