Imisebenzi, izingxenye kanye nokucaciswa kwama-circuit breakers ahlanganisiwe

I. Plastic Case Circuit breaker (MCCB): Umsebenzi nencazelo yengxenye

Ezweni lanamuhla, isidingo sikagesi siyanda. Akufanele nje siqaphele ukubaluleka kukagesi ngezikhathi zokushoda, kodwa kufanele siqinisekise ukuthi siwonga ngendlela ephusile. Ukuze kuxazululwe le nkinga, izilawuli zamandla ziyafakwa ukuze kuqashwe okwamanje. Kwesinye isikhathi, ukugcwala ngokweqile kanye namasekethe amafushane kungalimaza isekethe. I-switchgear ye-low-voltage isetshenziselwa ukuvikela isifunda ngesikhathi semicimbi engaqinisekile. Kulesi sihloko, sizodalula ukuthi iyini i-circuit breaker yecala elibunjiwe? Futhi umsebenzi, izingxenye kanye nokucaciswa kwe-circuit breaker yecala elibunjiwe.

II. Yini i-MCCB

I-MCCB isifinyezo se-Plastic-case circuit breaker esetshenziselwa ukuvikela amasekhethi nezingxenye zawo ekudluleleni kwesikhathi. Uma lokhu kwamanje kungahlukanisiwe ngesikhathi esifanele, kuzodala ukugcwala ngokweqile noma ukujikeleza okufushane. Lawa madivaysi anebanga elibanzi lefrikhwensi, okuwenza afanelekele izinhlelo ezihlukahlukene zokuvikela amasekhethi. Zihluka esilinganisweni samanje ukusuka kuma-amps angu-15 ukuya ku-1600 amps futhi zingasetshenziswa ezinhlelweni ezine-voltage ephansi. Ungavakashela iwebhusayithi yethu ku-www.ace-reare.com. Thenga i-Acereare Electric MCCB ngentengo engcono kakhulu.

III. Umsebenzi we-plastic case circuit breaker

● Ukuvikela ukulayisha ngokweqile
● Ukuvikelwa kwamaphutha kagesi
● Vula futhi uvale isekethe

I-MCCBS inganqanyulwa ngokuzenzakalela futhi ngesandla futhi isetshenziswa kakhulu njengenye indlela yama-microcircuit breaker ezinhlelweni ze-photovoltaic. I-circuit breaker yecala elibunjiwe ifakwe endlini ebunjiwe ukuze ivikeleke othulini, emvuleni, kuwoyela namanye amakhemikhali.

Njengoba le mishini ibamba imisinga ephezulu, idinga ukunakekelwa okufanele ngezikhathi ezithile, okungenziwa ngokuhlanza njalo, ukugcotshwa nokuhlola.

IV. Vikela impahla yakho kagesi

Zonke izinto zakho ezisebenza ngogesi zidinga ugesi ongashintshi ukuze zisebenze kahle. Kubalulekile ukufaka i-MCCB noma i-MCB ngokuvumelana nomthwalo wamanje. Ngokwenza kanjalo, izinhlelo zokulawula umshini eziyinkimbinkimbi zingavikelwa ngokuhlukanisa ukunikezwa kwamandla ngesikhathi sokuhluleka kukagesi.

V. Gwema umlilo

I-MCCB ehlangabezana nezindinganiso zomkhakha futhi eyekhwalithi enhle iyanconywa ukuze kuqinisekiswe ukuphepha okuphezulu. Lawa madivayisi azibuthe kagesi athola amaphutha uma kwenzeka ukuqhuma kwamandla noma isifunda esifushane ukuze awavikele emlilweni, ekushiseni nasekuqhumeni.

VI. Izingxenye kanye nokucaciswa kwama-case circuit breaker abunjiwe

Izingxenye ezine eziyinhloko ze-circuit breaker yecala elibunjiwe zifaka
• Igobolondo
• Indlela yokusebenza
• Isistimu yokucisha i-arc
• Idivayisi yohambo (uhambo olushisayo noma uhambo lukazibuthe)

SHELL

Eyaziwa nangokuthi yizindlu, ihlinzeka ngendawo yokuhlala engaphansi ukuze ifake zonke izingxenye ze-circuit breaker. Yenziwe nge-thermosetting composite resin (i-DMC mass material) noma i-polyester yengilazi (izingxenye ezibunjwe ngomjovo) ukuze inikeze amandla aphezulu e-dielectric ekwakhiweni kwayo okuhlangene. Leli gama labelwe ngokohlobo nosayizi wekesi elibunjiwe futhi lisetshenziselwa ukuchaza izici ze-breaker circuit (i-voltage ephezulu kanye nesilinganiso samanje).

Indlela yokusebenza

Ukuvulwa nokuvalwa kokuxhumana kwenziwa ngendlela yokusebenza. Isivinini lapho abathintwayo bavulwa futhi bavalwe ngaso sincike ekutheni isibambo sihamba ngokushesha kangakanani. Uma othintana naye ehamba, uzokwazi ukubona ukuthi isibambo sisendaweni emaphakathi. Uma i-circuit breaker isendaweni, akunakwenzeka ukwenza uhambo, olubizwa nangokuthi "uhambo oluzenzakalelayo".

Lapho i-circuit breaker ikhubeka, okungukuthi, uma isibambo sisendaweni ephakathi, kufanele siqale sithuthelwe endaweni evaliwe bese siyiswa endaweni evuliwe. Ezimweni lapho ama-circuit breaker efakwe eqenjini (njenge-switchboard), izikhundla zokubamba ezihlukene zisiza ukuthola isifunda esinephutha.
Ngokuvamile, ngaphambi kokuba i-circuit breaker ihambe efektri, sizobona ukuvulwa nokuvalwa kokulayishwa kwe-circuit breaker kanye nesifunda esifushane ngezindlela zesigaba esisodwa kanye nezigaba ezimbili zokuqapha ukuthi i-circuit breaker iqhuzukile ngaphakathi kwenani lebanga elimisiwe ukuze siqinisekise ukuthi ukuphepha kwe-circuit breaker ekusetshenzisweni kwangempela kwesayithi.

Isistimu yokucisha i-arc

Isiphazamisi se-arc: I-arcing kwenzeka lapho i-circuit breaker iphazamisa umsinga. Umsebenzi wesiphazamisi ukuvala nokuhlukanisa i-arc, ngaleyo ndlela uyicime. Igumbi lokucima i-arc livalwe ebhokisini le-insulated lamandla aphezulu, elihlanganiswe ikakhulukazi nenani lezingcezu zegridi yokucisha i-arc, edlala indima ebalulekile ekuqalisweni kwe-arc kanye nokucisha i-arc emikhiqizweni kagesi ene-voltage ephansi. Lapho othintana naye ehlukana ngenxa yokuphazamiseka, okwamanje okugeleza endaweni ene-ionized yoxhumana naye kudala inkambu kazibuthe ezungeze i-arc nesiphazamisi.

Imigqa yenkundla kazibuthe edalwe eduze kwe-arc ishayela i-arc epuleti lensimbi. I-gas ibe i-deionized, ihlukaniswe yi-arc, ivumela ukuthi iphole. I-MCCBS evamile isebenzisa ulayini wamanje ngokuthintana naye, okuthi, ngaphansi kwezimo zesifunda esifushane, idale amandla amancane okuqhuma, okusiza ukuvula othintana naye.

Iningi lesenzo sokuvula senziwa amandla emishini agcinwe kumshini wokukhubeka ngokwawo. Lokhu kungenxa yokuthi imanje kubo bobabili abathintwayo igeleza ngehora elifanayo eliqondile.

Idivayisi yohambo (uhambo olushisayo noma lwe-electromagnetic)

Idivayisi yohambo ingubuchopho be-circuit breaker. Umsebenzi oyinhloko wedivayisi yokukhubeka uwukukhuba indlela yokusebenza esimweni sokujikeleza okufushane noma ukugcwala okuqhubekayo kwamandla. Izigebengu zesekhethi ze-mold-case mold zisebenzisa amadivaysi e-electromechanical tripping. Izinqamuli zesekethe zivikelekile ngokuhlanganisa amadivayisi azwelayo kukushisa nemishini yohambo lwe-elekthronikhi, manje enganikeza ukuvikeleka okuthuthuke kakhulu nokuqapha. Ama-circuit breaker amaningi abunjiwe asebenzisa i-elementi yohambo eyodwa noma ngaphezulu ukuze anikeze ukuvikeleka kwesifunda sezinhlelo zokusebenza ezihlukahlukene. Lezi zakhi ezikhubekayo zivikela ekulayisheni okushisayo, amasekhethi amafushane kanye nokwehluleka komhlaba kwe-arc.

I-MCCBS evamile ihlinzeka ngamadivayisi ahambayo angaguquki noma ashintshekayo we-electromechanical. Uma i-circuit breaker yohambo olugxilile idinga isilinganiso esisha sohambo, yonke i-circuit breaker kufanele ishintshwe. Imishini yohambo eshintshwayo nayo ibizwa ngokuthi ama-plug akaliwe. Amanye ama-circuit breaker ahlinzeka ngokushintshana phakathi kwemishini yohambo lwe-electromechanical kanye ne-elekthronikhi kuhlaka olufanayo.

Ukuqinisekisa ukusebenza kahle kwe-MCCB, ukugcinwa okuvamile kufanele kwenziwe, okuhlanganisa ukuhlolwa okubonakalayo, ukuhlanza nokuhlola.

VII. Ukusetshenziswa kwe-circuit breaker yecala elibunjiwe

I-MCCB yakhelwe ukuphatha imisinga ephezulu futhi isetshenziswa kabanzi emisebenzini esindayo efana nohambo olulungisekayo Izilungiselelo zezinhlelo zokusebenza zamanje eziphansi, ukuvikelwa kwamamotho, ukuvikelwa kwamabhange ama-capacitor, ama-welders, ukuvikelwa kwamajeneretha kanye neziphakeli.

Imininingwane ye-circuit breaker yecala elibunjiwe
•I-Ue - I-voltage yokusebenza elinganiselwe.
•I-Ui - I-voltage ye-insulation elinganiselwe.
•I-Uimp - impulse ukumelana ne-voltage.
•In - yamanje elinganiselwe ngegama.
•I-Ics - Ikalwe ngamakhono okuphuka kwe-short-circuit.
•Icu - Umthamo wesegimenti yesifunda esifushane esilinganiselwe.