Isebenza kanjani i-circuit breaker?
Okuqukethwe
Ngivame ukuthola lo mbuzo kubantu abaqala uhambo lwabo lobufundi. Uhlobo ngalunye lwe-circuit breaker lunomsebenzi walo. Amaswishi azimele awela kulesi sigaba futhi asetshenziswa ngokuyinhloko emakhishini nakwezinye izindawo lapho kungase kube khona ingozi yokushaqeka kukagesi.
Njengomthetho, ama-circuit breaker ane-shunt trips asebenza kanje:
- Imanuwali, ngokushintsha
- Okuzenzakalelayo, nokunikezwa kwamandla kwangaphandle.
Kuzo zombili izimo, bathumela isignali ku-electromagnetic switch enkulu. I-electromagnetic ishajwa ukukhuphuka kwamandla kagesi adluliswa uhambo lwe-shunt bese igingqa iswishi eyinhloko.
Ngizongena imininingwane eyengeziwe ngezansi.
Amagama ambalwa mayelana nesistimu yesekethe kagesi ngaphambi kokuba siqale
Isistimu kagesi yesakhiwo iqukethe amasekhethi amancane axhunywe kumthombo wamandla.
Isifunda ngasinye "sifinyelela" isihlangu esikhulu, esihlanganisa izintambo nama-circuit breakers. Isizathu siwukuthi ekugcineni lezi zifunda azixhumani. Ngakho-ke, lapho isifunda esisodwa sonakalisiwe noma sibhekene nokuqhuma kwamandla (njengesifunda ekhishini endlini), izifunda kuwo wonke amanye amakamelo zihlala zingathinteki kule nkinga.
Ama-Circuit breaker aklanyelwe ukuvala amandla ngesikhathi sokuhamba kwamandla. Axhunywe ohlelweni lukagesi futhi ngamunye ku-electromagnetic and switch.
I-solenoid ye-breaker iyashajwa futhi ishise ngokweqile lapho ugesi oweqile udlula ohlelweni lukagesi. Kuleli qophelo, i-circuit breaker iyahamba ngokushesha, ibangele ukuthi i-circuit breaker nayo ivuleke.
Isekethe ngayinye ixhunywe ochungechungeni, futhi wonke amasekhethi axhunywe kugesi ngokuhambisana.
Yini esiyibiza nge-circuit breaker?
I-switch ezimele iyisesekeli ozikhethela sona esivumela isinqamuli esiyinhloko ukuthi sicishwe ngokusayinda okukude.
Ukushintsha okuzimele kuqukethe izakhi ezimbili zokuqhuba, phakathi kwazo kukhona i-jumper yensimbi. Insimbi iqukethe manganese, nickel kanye nethusi. Esinye isiphetho sixhuma emhlabathini kanti esinye sixhuma ohlelweni lokulawula.
Idivayisi iyamelana futhi ixhunywe ochungechungeni ngomugqa wamanje oqondile (DC). Nokho, amazinga okumelana aphansi ngokwanele ukuze angaphazamisi ukuhamba kukagesi ngohlelo lwesekethe.
Inani lamanje eligeleza ohlelweni lingalinganiswa kusetshenziswa i-voltage nokumelana kwe-shunt (umthetho we-Ohm: yamanje = i-voltage/resistance).
Iswishi ezimele ingaphinda ixhumeke kwamanye amadivaysi afana nama-PLC namadivayisi amanje okuqapha. Lawa madivayisi akhiqiza imiphumela ethile kuye ngezinga lamanje eligeleza ohlelweni.
Ngokuvamile, lezi zishintshi zisetshenziselwa ukuvala mathupha isistimu kagesi esimweni esiphuthumayo noma kusetshenziswa inzwa.
Wenzani i-circuit breaker?
Ukukhishwa kwe-shunt kusetshenziselwa kakhulu ukuhamba kude kwama-breaker circuit.
Ezimweni eziningi, ukushintshwa okuzimele kuxhunywe kuphaneli yokulawula exhunywe ohlelweni oluphuthumayo (okungukuthi uhlelo lomlilo). Ngokuvamile zihlotshaniswa nezinhlelo zokucindezela amakhemikhali ezithumela amasignali akude ohlelweni ukuze zikwazi ukuvala amandla.
Iswishi yohambo lwe-shunt inezici ze-thermomagnetic ekwakhiweni kwayo, ezingasebenzi ngenxa yobukhulu bamanje obugeleza kuyo.
Kungani i-circuit breaker ibalulekile?
Ukushintsha okuzimele kusetshenziselwa ikakhulukazi ukunqamula ukunikezwa kwamandla ohlelweni lokwakha.
Ukusetshenziswa okuvame kakhulu kwalolu hlobo lokushintsha ukuvikela umlilo. Ukuze inkinobho yohambo lwe-shunt isebenze kulesi simo, isitholi sentuthu kufanele sivulwe. Uma i-alamu icushiwe, ukushintshwa okuzimele kucushiwe, okuvimbela zonke izingozi ezihlobene nogesi.
Ukubaluleka kokushintsha kulele ekutheni kungenzeka ukushaqeka kukagesi. Isibonelo, uma umtshina wentuthu uxhunywe ku-sprinkler, uzocisha uhlelo lukagesi. Lesi senzo sinciphisa zonke izingozi zokushaqeka kukagesi.
Isici esithuthukisa inani laso elikhulu ukushintsha okwenziwa ngesandla. Le swishi ivumela umsebenzisi ukuthi avale isinqamuli esiyinhloko ukuze anciphise ingozi esimeni esiphuthumayo.
I-shunt switch iphinde ivimbele ukulimala kwezinto zikagesi zesakhiwo.
Ingasetshenziswa kuphi i-circuit breaker?
Ezimweni eziningi, ukushintshwa okuzimele akudingeki ezinhlelweni eziningi zesekethe kagesi.
Nokho, ngokuvamile ziphoqelekile ku:
- Amakhishi
- Amahhovisi
- amakheshi
Ukushintsha okuzimele emakhishini nasemahhovisi kusetshenziswe ikakhulukazi ezimweni eziphuthumayo zomlilo. Njengoba kushiwo ngenhla, ngokushesha nje lapho umtshina womlilo uqala ukusebenza, iswishi ezimele ivala iswishi eyinhloko ukuvimbela ukulimala kwezinhlelo zikagesi zesakhiwo.
Amaswishi ezimo eziphuthumayo zekheshi nawo ahlotshaniswa nokutholwa komlilo. Kulokhu, inhloso yazo zonke izinguquko ezinjalo ukunqamula amandla ngaphambi kokuba izinhlelo zokufafaza zisebenze, hhayi nje ukuvikela isifunda esikhulu.
Ngaphezu kwalezi zimo ezingenhla, ama-circuit breaker e-shunt alungele izindawo lapho kusetshenziswa khona imishini esindayo neyezimboni.
Isebenza kanjani i-circuit breaker?
I-circuit breaker ezimele ihlale ixhunywe ochungechungeni namanye ama-circuit breaker.
Ngenxa yokuthi ukushintshwa okuzimele kunokumelana okuncane kakhulu, ugesi ugeleza emgqeni wensimbi ngaphandle kokuthinta isifunda. Ngaphansi kwezimo ezijwayelekile, ungasebenzisa uhambo lwe-shunt ukukala umsinga odlulayo.
I-electromagnetic itholakala ngaphansi kokushintshwa kwe-breaker circuit, ngakho-ke ingabangelwa ukukhuphuka kwamandla. Ukushintsha okuzimele kungafaka isandla ekukhubekeni kwe-breaker circuit ngezindlela ezimbili:
- Ngokunikezwa kwamandla angaphandle
- Ngokusebenza ngokushintsha kwesilawuli kude
Kuzo zombili izimo, ukushintshwa okuzimele kuthumela isignali ukuze uvule iswishi eyinhloko ohlelweni lukagesi.
1. Ukunikezwa kwamandla kwangaphandle
Ukunikezwa kwamandla kwangaphandle kusetshenziselwa ikheshi kanye nama-circuit breaker ekhishini.
Bathola isignali kusuka kusistimu yangaphandle (okungukuthi i-alamu yomlilo) edluliswa kusukela ekukhululweni kwe-shunt kuya ekushintsheni okukhulu. Lesi siginali ukushajwa kukazibuthe kagesi wesiphakeli sesekethe, ebese siginqa isinqamuli sesifunda.
Ngesikhathi sokukhuphuka kwamandla, i-circuit breaker ingase ikhubeke ngokwayo, kodwa, ukushintsha okuzimele kusebenza njengendlela yokuphepha uma kwenzeka uhambo lungenzeki.
2. Iswishi yesilawuli kude
I-remote switch ngokuvamile itholakala ngaphandle kwesakhiwo.
Ukuze wenze ukushintsha okuzimele kusebenze mathupha, ukushintsha kufanele kufinyelelwe. Ngokuvamile ifakwe inkinobho edlulisa umfutho kagesi ngokusebenzisa izintambo. Ngakho, amandla avaliwe.
Amaswishi akude asetshenziswa kakhulu njengesinyathelo sokuphepha.
Bheka ezinye zezihloko zethu ngezansi.
- Indlela yokuxhuma i-circuit breaker
- Indlela yokuvikela i-heater ukuthi ingakhubeki iswishi
- Indlela yokulungisa i-circuit breaker ye-microwave
Izixhumanisi zevidiyo
