Indlela Yokukhetha I-800A MCCB Efanele Yezicelo Zezimboni

Isingeniso

Ezinhlelweni zokusatshalaliswa kwamandla ezimbonini, ama-circuit breaker adlala indima ebalulekile ekuvikeleni imishini, ukuqinisekisa ukuphepha kwabasebenzi, kanye nokugcina ukuqhubeka kokusebenza. Ukukhetha i-breaker engalungile kungabangela ukukhubeka njalo, ukuvikelwa kwamaphutha okunganele, noma ngisho nomonakalo omkhulu wemishini. Ezinhlelweni zamandla aphakathi kuya kwaphezulu, ukukhetha okulungile800A MCCB kubaluleke kakhulu, njengoba kuvame ukusebenza njengethuluzi eliyinhloko noma lokuvikela ezindaweni zezimboni ezidinga kakhulu.

1. Qonda Izidingo Zesistimu Kagesi

Ngaphambi kokukhetha i-circuit breaker, kubalulekile ukuqonda ngokugcwele izici zikagesi zesistimu. Izici ezibalulekile zifaka phakathi ugesi olinganisiwe womthwalo, i-voltage yokusebenza, kanye nemvamisa yesistimu. Imithwalo yezimboni efana nama-motor, ama-transformer, kanye nemishini yokukhiqiza ingadonsa ugesi ophezulu noma isebenze ngokuqhubekayo isikhathi eside.

Ngaphezu kwalokho, abaklami kufanele bacabangele ukuthi uhlelo lusebenzisa umthombo wamandla owodwa noma imithombo eminingi, njengamandla okusetshenziswa kanye namajeneretha. Izinhlelo zokusebenza eziqhubekayo zingadinga ukuncishiswa ukuqinisekisa ukuthembeka kwesikhathi eside kanye nokuqina kokushisa.

2. Hlola Amandla Okwephula kanye Nezinga Lephutha

Amazinga wamanje we-short-circuit ezinhlelweni zezimboni angaba phezulu kakhulu ngenxa yama-transformer amakhulu namanethiwekhi angenawo umoya oqinile. Ngakho-ke, amandla okuphuka kwe-MCCB kumele anele ukuphazamisa ngokuphephile ugesi we-prospective fault current omkhulu endaweni yokufaka.

Okukhethiwe ngokufanele800A MCCBkufanele ibe namandla okuqeda isevisi anele ukuze ihambisane namazinga amaphutha esistimu. Amandla okuphula angalinganiswa kahle angaholela ekuhlulekeni kwe-breaker, umonakalo omkhulu, noma izingozi zokuphepha ngesikhathi sezinkinga.

3. Khetha Iyunithi Yohambo Efanele kanye Nemisebenzi Yokuvikela

Ukukhethwa kweyunithi yohambo kuthinta ngqo ukunemba kokuvikela kanye nokuxhumana. Amayunithi ohambo olusebenzisa ugesi avame ukusetshenziswa ezinhlelweni ezijwayelekile, kuyilapho amayunithi ohambo olusebenzisa ugesi enikeza ukunemba okuphezulu kanye nezilungiselelo zokuvikela ezilungisekayo.

Amayunithi ohambo lwe-elekthronikhi avumela ukulungiswa kahle kwezimpawu zokulayisha ngokweqile, i-short-circuit, kanye nokubambezeleka kwesikhathi, okusiza ekufinyeleleni ukuhlanganiswa okukhethiwe namadivayisi aphezulu naphansi komfula. Kwezinye izinhlelo zezimboni, imisebenzi eyengeziwe yokuvikela njengokuthola iphutha lomhlabathi nayo ingadingeka.

4. Cabanga Ngendawo Yokufaka kanye Nezici Zemishini

Izindawo zezimboni zingaba nzima, zibe namazinga okushisa aphezulu, uthuli, ukudlidliza, kanye nomswakama. Lezi zimo zithinta ukusebenza kwe-breaker kanye nokuphila kwesevisi. Ukukhetha indawo efanele, umoya ongenisayo, kanye nesikhala kubalulekile ukuvimbela ukushisa ngokweqile nokuqinisekisa ukusebenza okuphephile.

Izinto okufanele zicatshangelwe ngemishini zifaka phakathi ukuqondiswa kokufakwa, ukuxhumeka kwekhebula noma i-busbar, kanye nokufinyeleleka kokuhlolwa nokugcinwa. Ukukhetha umklamo we-breaker oqinile kuthuthukisa ukuqina futhi kunciphisa isikhathi sokungasebenzi phakathi nomjikelezo wokuphila kwemishini.

5. Qinisekisa Ukuhambisana Nezindinganiso Nokufaneleka Kwesicelo

Ukuhambisana nezindinganiso zomhlaba wonke njenge-IEC kuqinisekisa ukuthi i-MCCB iyahlangabezana nezidingo zokuphepha, ukusebenza, kanye nokuhlolwa. Izicelo zezimboni zivame ukudinga ukuthembeka okuphezulu, ukusebenza okuzinzile, kanye nokuphila isikhathi eside kwenkonzo.

Ukukhetha i-breaker kumkhiqizi ohlinzeka ngamadokhumenti obuchwepheshe aphelele, idatha yokuhlola, kanye nokusekelwa kwangemva kokuthengisa kusiza ukuqinisekisa ukuthi ikhambi elikhethiwe lihlala lifanelekile kuyo yonke impilo yokusebenza kwesistimu.

Imibuzo Evame Ukubuzwa (Imibuzo Evame Ukubuzwa)

Umbuzo 1: Ikuphi i-800A MCCBngokuvamile ezisetshenziswa ezinhlelweni zezimboni?
A: Ivame ukusetshenziswa njenge-breaker engenayo eyinhloko noma idivayisi yokuvikela i-feeder kumaphaneli okusabalalisa ezimboni.

UMBUZO 2: Ngingawuthola kanjani umthamo wokuphuka odingekayo?
A: Umthamo wokuphuka kufanele ube phezulu kunomkhawulo ophezulu wesikhathi esifushane endaweni yokufaka.

UMBUZO 3: Ingabe amayunithi ohambo lwe-elekthronikhi angcono kunelawo anomoya oshisayo?
A: Amayunithi ohambo lwe-elekthronikhi anikeza ukunemba okuphezulu kanye nokulungiswa, okwenza afaneleke ezinhlotsheni eziyinkimbinkimbi noma ezibalulekile zezimboni.

Umbuzo 4: Ingabe izinga lokushisa elizungezile lingathinta ukusebenza kwe-MCCB?
A: Yebo. Amazinga okushisa aphezulu angadinga ukushiswa ukuze kuvinjelwe ukukhubeka nokushisa ngokweqile.

Izinkomba

1. I-IEC 60947-2 –Iswitshi ye-voltage ephansi kanye negiya lokulawula – Ama-circuit-breaker

2. IEEE –Umkhuba Onconywayo Wokuvikela Nokuxhumanisa Izinhlelo Zamandla Zezimboni Nezentengiselwano

3. ISchneider Electric –Umhlahlandlela Wokukhetha I-Industrial Circuit Breaker

4. I-ABB –Incwadi Yesicelo Nokukhetha ye-MCCB

5. I-Siemens –Imibhalo Yokusabalalisa Nokuvikela Amandla Aphansi E-Voltage