Umehluko Phakathi Kwesibambi Sefuse ye-DC ne-Miniature Circuit Breaker

IUmnikazi we-fuse we-DCngokuvamile ifakwe kumjikelezo futhi isetshenziselwa ukuqinisekisa ukuphepha kwesifunda ngesikhathi sokusebenza kwengxenye ebalulekile kagesi.Amafuse e-DC ayisivikelo esinganikeza isivikelo sesekethe emfishane, futhi asetshenziswa kakhulu ezinhlelweni zokusabalalisa amandla, amasistimu okulawula, njll. I-fuse idlala indima ngokuyinhloko ekuvikelweni kwesiyingi esifushane kanye nokuvikela ukugcwala okukhulu.

Ngenjwayelo,DC miniature circuit breakersingasetshenziswa ukusabalalisa amandla kagesi noma ukuqala ama-asynchronous motors njalo, kanye nokuvikela izintambo zikagesi namamotho.Uma i-DC circuit breaker ihlangabezana nokugcwala okukhulu, isekethe emfishane, noma iphutha le-undervoltage ngesikhathi sokusebenza, izonqamula isekethe ngokuzenzakalelayo.Umsebenzi we-circuit breaker ufana nenhlanganisela ye-fuse switch kanye ne-overheating relay.

Iphuzu elivamile le-DC fuse kanye ne-mini circuit breaker: lingakwazi ukusika isifunda ngokushelela lapho isifunda sihluleka, ngakho-ke kungathiwa kokubili yimishini yokuvikela isifunda, ikakhulukazi esetshenziselwa ukuvikela i-breaker circuit ekulayisheni ngokweqile kanye nesifunda esifushane.

Uyini Umsebenzi we-DC Fuse Holder kanye ne-Mini Circuit Breaker?

Imingcele ye-DC mini circuit breaker ayilula neze.Ububanzi bokusetshenziswa ngokuvamile buhlukaniswe ngama-high-voltage circuit breaker kanye nama-low-voltage circuit breaker.Ngokuvamile, sivame ukubiza ama-voltage angaphezu kuka-3KV njengama-high-voltage circuit breaker, nama-low-voltage circuit breaker abizwa nangokuthi ama-automatic switch.Kuwumshini kagesi ongenawo kuphela umshini oshintshwayo, kodwa futhi unamadivayisi okuvikela okuzenzakalelayo ekulahlekeni kwe-voltage, i-undervoltage, i-overload kanye ne-short-circuit.Ama-circuit breaker e-DC nawo ahlukaniswe abe ama-circuit breaker kanye nama-case breaker breaker abunjiwe.Ngokuvamile, asikho isidingo sokushintsha izingxenye nezingxenye ngemva kokuba iphutha lamanje liphukile, futhi liye lasetshenziswa kabanzi.

Ngenkathi isibambi se-fuse ye-DC siyisivikeli samanje esivikela izinto zikagesi ngokusebenzisa i-current.Ngemva kokuba i-current idlule inani elishiwo isikhathi esithile, ukushisa okukhiqizwa yi-fuse ngokwayo kukhuthaza ukuncibilika kokuncibilika, ngaleyo ndlela kuphule isifunda.Amafuse e-DC ngokuvamile asetshenziswa kabanzi ezinhlelweni zokusabalalisa amandla kagesi aphansi kanye nezinhlelo zokulawula kanye nemishini kagesi.Njengokuvikela kwe-short-circuit kanye ne-over-current, angenye yamadivayisi okuvikela asetshenziswa kakhulu.

Ngakho-ke, i-DC circuit breaker ingashintsha i-fuse, inqobo nje uma ukusebenza okulinganiselwe phakathi kwe-fuse kanye ne-circuit breaker kufana ne-breaking current elinganiselwe.Kodwa uma i-circuit breaker isetshenziswa njenge-fuse, ingabe i-overkill encane?

Uyini Umehluko phakathi kwe-DC fuse Holder kanye ne-Mini Circuit Breaker?

Ukufana phakathi kwezibambi zefuse ze-DC nama-circuit breaker ukuthi ziyakwazi ukubona ukuvikeleka kwe-short-circuit.Isimiso se-fuse siwukuthi: ukusebenzisa i-current ukugeleza ku-conductor kuzoshisa umqhubi, ngemva kokufinyelela endaweni yokuncibilika komqhubi, umqhubi uzoncibilika.Ngakho-ke, isekethe inganqanyulwa ukuze kuvikelwe izinto zikagesi nemigqa ekushisweni.Kuwukunqwabelana kokushisa, ngakho-ke ukuvikeleka kokugcwala ngokweqile kungabonakala, uma incibilikisiwe isishisiwe, inyibiliki kufanele ishintshwe.Lapho umthwalo kagesi kumjikelezo useduze nomthwalo we-fuse osetshenziswe isikhathi eside, i-fuse izoshiswa kancane kancane ize ihlanganiswe.Ukuhlanganiswa kwe-fuse kuwumphumela wesenzo esihlangene samanje nesikhathi, esidlala indima yokuvikela umugqa.Iyalahleka.

I-DC circuit breaker ingakwazi futhi ukubona umjikelezo omfushane nokuvikelwa kokulayisha ngokweqile komugqa, kodwa isimiso sihlukile.Ibona ukuvikelwa kwe-circuit breaker ngomthelela wamanje ozibuthe ophansi (i-electromagnetic tripper), futhi ibona ukuvikeleka kokugcwala ngokweqile komthelela oshisayo wamanje.Lapho i-current in circuit ikhula ngokuzumayo futhi idlula umthwalo we-circuit breaker, i-circuit breaker izovuleka ngokuzenzakalelayo.Kuyisivikelo sokwandisa igagasi elisheshayo lesekhethi, njengalapho ukuvuza kukukhulu, isekethe emfushane, noma umsinga osheshayo mkhulu.Ngemuva kokutholakala kwesizathu, ingavulwa futhi iqhubeke nokusetshenziswa.

Ngisho noma imisebenzi nemisebenzi ye-DC circuit breaker kanye nefuse kuyafana, kusenomehluko omningi, njengomehluko wezindlela zokuvikela, isivinini sokusebenza, izikhathi zokusetshenziswa, nezimiso zokusebenza.Umehluko phakathi kwe-fuse ne-circuit breaker imi kanje:

1. Umehluko wendlela yokuvikela: indlela yokuvikela isibambi se-fuse ye-DC isebenzisa ifomu le-fuse.Ngemuva kokuthi iphutha lisusiwe, i-fuse idinga ukushintshwa ukuze ubuyisele ukunikezwa kwamandla, ngakho-ke kuba nzima kakhulu ukuyigcina.Indlela yokuvikela ye-DC circuit breaker isebenzisa ifomu lokukhubeka.Ngemuva kokuthi iphutha lisusiwe, ukunikezwa kwamandla okujwayelekile kungabuyiselwa kuphela ngesenzo sokuvala, ngakho-ke ukugcinwa nokubuyisela kuzoba lula kakhulu kune-fuse.

2. Umehluko ngesivinini sesenzo: isivinini sesenzo se-fuse se-fuse ye-DC singafinyelela izinga le-microsecond (μs), okusho ukuthi ijubane layo lishesha kakhulu kunele-breaker circuit.Leli khono livamise ukuzifanelekela izidingo zokunqamula ngokushesha Ukufakwa nokusetshenziswa ngaphansi kwezimo.Isivinini sokukhubeka se-circuit breaker singama-millisecond (ms).Kungabonakala ukuthi ihamba kancane kune-fuse, ngakho ifaneleka kuphela izikhathi lapho isivinini sokusika singekho phezulu kakhulu.

3. Umehluko enanini lezikhathi zokusetshenziswa: i-fuse ye-DC kufanele ishintshwe ngemva kokuba isivikelo sephutha senziwe kanye futhi ukuncibilika kushaywa umoya, futhi i-DC circuit breaker ingasetshenziswa kabusha ezimweni eziningi.Kodwa-ke, ngokombono womphumela wokuphulwa kwesifunda, i-fuse izoba namandla kune-breaker circuit, futhi ngesikhathi esifanayo iphelele kakhulu.Ngaphansi kwezimo ezijwayelekile, i-breaker circuit ifakwe emgwaqeni wegatsha, futhi i-fuse ifakwe emgwaqeni omkhulu ezimweni eziningi ukuze idlale indima yokuvikela kwesibili.

4. Umehluko esimisweni sokusebenza: Umgomo wokusebenza wefuse ye-DC usekelwe kakhulu kumphumela oshisayo wamanje.Lapho i-current idlula inani elinqunyiwe (izilungiselelo ze-fuse ezihlukene nazo zihlukile), i-fuse yangaphakathi izophephetha ukuze iphule isekethe futhi ivikele Imishini ayishiswa amandla aphezulu.Ngenkathi kunezinhlobo eziningi ze-DC circuit breaker kanye nezimiso zabo zesakhiwo nazo zihlukile.Ngokuvamile, injabulo yekhoyili yohambo ibangelwa amandla amanje amaningi ukuze ibangele i-circuit breaker ukwenza isenzo sokukhubeka.Yiqiniso, i-circuit breaker ayikwazi nje ukufeza ukusebenza okuzenzakalelayo, kodwa futhi nokulawula ngesandla ukuvulwa nokuvala izenzo ze-breaker circuit.

Kwezinye izikhathi ezikhethekile, kunemithetho edingekayo ehlobene ehlobene okufanele isebenzise amafuse e-DC, njengokuvikelwa kokulawula ikheshi, ukuze ama-DC circuit breaker awakwazi ukufaka amafuse ngokuphelele.Ngaphezu kwalokho, isikhathi esifushane semodule ye-thyristor ye-circuit breaker sifushane kakhulu.Kulesi simo, isivinini sokukhubeka se-breaker circuit asikwazi ukuhlangabezana nezidingo ze-short-circuit, ngakho-ke umthamo wokuhlanganisa we-fuse nawo uboniwe.I-fuse ye-DC isetshenziswe kabanzi ekwakheni i-soft starter, ukuguqulwa kwemvamisa kanye nezinye izinhlelo zokusabalalisa.