Kuyinii-circuit breaker evuzayo?
I-circuit breaker evuzayo, isetshenziselwa ukuvimbela ukushaqeka kukagesi. Uma kwenzeka ukuvuza, insimu yamagnetic ikhiqizwa yi-contact eyinhloko, i-coil yokuxhumana ehlukanisayo, i-coil yokuxhumana ehlukanisayo kanye ne-switch eyinhloko.
I-circuit breaker evuzayoumsebenzi: lapho isekethe i-short circuit noma i-overload ingaba yisenzo esifike ngesikhathi, nqamula ukunikezwa kwamandla.
Uma kukhona isivikelo sokuvuza esisekugcineni, uma kwenzeka iphutha lokuvuza noma ukulayisha ngokweqile, isivikelo sokuvuza ngeke sisebenze futhi sizothumela isignali ye-alamu yomsindo nokukhanya. Akudingeki ukunqamula ngesandla.
Izinjongo eziyinhloko:
1. Ukuvikela ukuphepha komuntu siqu uma kwenzeka ukuvuza kwemishini kagesi yasekhaya noma ehlangene.
2. Kufanele ifakwe ezindaweni zomphakathi nasezindaweni ezivuthayo neziqhumayo (njengezindawo zokukhiqiza, izindawo zokugcina impahla, njll.) lapho abantu bevame ukuthuthela khona ukuze bavimbele umlilo nezinye izingozi ezibangelwa ukuvuza kukagesi.
Awukwazi ukwabelana ngomthombo wamandla neminye imishini kagesi.
1. Iswishi yokuvikela ukuvuza inganqamula ngokushesha ukunikezwa kwamandla uma kwenzeka i-grounding short circuit noma iphutha le-grounding lesigaba esisodwa kunethiwekhi yamandla aphansi, ngaleyo ndlela iqinisekise ukuphepha komuntu siqu kanye nokuvikela imishini ekulimaleni.
2. Uma kwenzeka ukwehluleka ngasikhathi sinye kweswishi yokuvikela ukuvuza kanye nemishini kagesi, iphutha lokuvuza emishinini kagesi lingasuswa ngokukhetha ukuze kungabangela ukulahlekelwa okuphelele kokunikezwa kwamandla kagesi, ngaleyo ndlela kuqinisekiswe ukuphepha komuntu siqu futhi kuvinjelwe ukwanda kwezingozi zokushaqeka kukagesi.
3. Kugridi yamandla ephansi enezintambo ezine enezigaba ezintathu, lapho kwenzeka iphutha lokufaka isisekelo lesigaba esisodwa, ukunikezwa kwamandla kunganqanyulwa ngokushesha nangokufanele ukuvimbela ukwanda kwengozi.
4. Ukukhetha kweswishi yokuvikela ukuvuza kuhle kakhulu ngenxa yemisebenzi yayo emibili yokukhululwa kwe-overcurrent (TN -C) kanye nokukhululwa kwe-overload (TT-B).
5. Uma amaphuzu amabili enjini ephansi ngenxa yokushaqeka kukagesi komuntu siqu noma ngesizathu esithile, ugesi unganqanyulwa ngokushesha nangokuthembekile.
Ungasebenzisi ugesi wesigaba esisodwa ekukhanyiseni.
Ukufakwa kwesivikelo sokuvuza: 1. Ukufakwa kwesivikelo sokuvuza kufanele kuhambisane nemithethonqubo efanele, indawo yaso kufanele iqine futhi ithembeke, futhi kufanele ikhiywe njengoba kudingeka.
2. Isilinganiso sesivikelo sokuvuza kufanele sinqunywe ngumsebenzisi ngokuya ngokusetshenziswa okuthile, kodwa ngokuvamile akufanele sidlule ugesi osebenzayo ophephile (30mA).
3. Imodeli kanye nencazelo yesivikelo sokuvuza kufanele ifanele umugqa wokuxhuma.
4. Amatheminali esivikelo sokuvuza kanye nezinhlangothi zombili zomugqa womthwalo kufanele abe nokuxhumana okuhle futhi aqine futhi athembeke.
5. Uma kutholakala ukuthi isivikelo sokuvuza sinomsindo ongajwayelekile, ukwenyuka kwezinga lokushisa, umuzwa ongajwayelekile wesandla, njll., uchwepheshe kagesi kufanele atholakale ngesikhathi ukuze ahlolwe futhi alungiswe.
6. Izivikelo zokuvuza akufanele zisetshenziswe isikhathi eside futhi ngokuvamile akufanele zisetshenziswe isikhathi esingaphezu kwengxenye yonyaka. Uma kudingeka ukuqhubeka nokusebenzisa izivikelo ezinjalo, kufanele zihlolwe ngokuphelele ngaphambi kokuba zisetshenziswe.
Ayikwazi ukushintshwai-circuit breaker evuzayongesokhethi evamile.
Ngoba isokhethi elijwayelekile ngokwalo igobolondo lensimbi kanye nokufakwa kokushisa kwezintambo zangaphakathi akunakudlala indima yokuvikela, ngakho-ke lapho kuvela ukuvuza, ugesi uzongena emzimbeni ngesokhethi, okuholela engozini yokushaqeka kukagesi.
Ukusetshenziswa kukagesi ngokuphepha kubaluleke kakhulu. Akukhathaleli ukuphepha kwethu kuphela, kodwa nabantu abasizungezile. Uma ungakunaki ukusetshenziswa kukagesi enkambisweni yokuphepha, ukunganaki okuncane kuzoholela ekushaqekeni kukagesi. Ngakho-ke, empilweni yansuku zonke kumele uhlakulele umkhuba omuhle kagesi ophephile.
Iswishi yokuvikela ukuvuza inganikeza isexwayiso somlilo kagesi kusenesikhathi, ukuqapha umlilo kagesi, ukulahlwa komlilo kagesi neminye imisebenzi. Iswishi yokuvikela ukuvuza ingafakwa egumbini lokusabalalisa futhi ingafakwa kuzo zonke izidingo zokuvikela indawo, inganciphisa ngempumelelo amathuba ezingozi ezibangelwa ukuvuza.
Uma usebenzisai-circuit breaker evuzayo, izinto ezilandelayo kufanele ziqashelwe:
1. Ngaphambi kokufaka i-circuit breaker evuzayo, kubalulekile ukuhlola ngokucophelela ukuthi ukubukeka kanye nemigqa yokuxhuma ye-circuit breaker evuzayo kulungile yini nokuthi izintambo ezisetshenzisiwe ziyahlangabezana yini nezimfuneko. Ukuze kulinganiswe ukuthi inani lamanje le-zero sequence ye-circuit breaker evuzayo lingaphakathi kwebanga elijwayelekile, akufanele kube khona into engavamile esobala ngaphambi kokuba i-circuit breaker evuzayo isebenze.
2. Uma ufaka i-leaking circuit breaker, kufanele kuqashelwe ukusetshenziswa kahle kwe-fuse enenani lamanje elilinganiselwe futhi ugesi kumele unqunywe ngaphambi kokuhlola isivikelo sokuvuza. Ama-leaking circuit breaker akufanele asetshenziswe uma i-external circuit ingena egumbini noma uma kwenzeka iphutha le-short-circuit.
3. Uma ufaka i-circuit breaker evuzayo, i-circuit breaker kufanele ibekwe endaweni eqondile neqinile futhi isekelwe noma ibekwe u-zero ngokuthembekile.
4. Ngemva kokufakwa, i-leaking circuit breaker kufanele ihlolwe njalo ngokunqamula ugesi, futhi uma ingakwazi ukuxhunywa zingakapheli imizuzu emi-2, ugesi ungaxhunywa futhi.
Isikhathi sokuthunyelwe: Feb-20-2023