Yeyiphi imisebenzi yabaphuli beesekethe?Inkcazo ebanzi yomgaqo wokusebenza wabaphuli beesekethe
Xa impazamo yenzeke kwinkqubo, ukhuseleko lwento ephosakeleyo lusebenza kwaye i-breaker circuit iyasilela ukuhamba, ukukhuselwa kwento ephosakeleyo kukusebenza kwi-breaker circuit ekufutshane ye-substation ukuya, kwaye ukuba iimeko zivumela, itshaneli ingaba esetyenziselwa ukwenza ii-breakers zesekethe ezinxulumeneyo kwindawo ekude ngexesha elinye.I-wiring ekhutshiweyo ibizwa ngokuba ngukhuseleko lokungaphumeleli kwe-breaker.
Ngokuqhelekileyo, emva kokuba isigaba sangoku sigwetywe ngokuhlukana kwesigaba sisebenza, iiseti ezimbini zoqhagamshelwano zokuqalisa ziphuma, ezidityaniswe ngokulandelelana kunye nabafowunelwa bokukhusela isenzo sangaphandle ukukhusela ukusilela kokuqala xa umgca, ibhasi okanye i-breaker circuit breaker ihluleka.
Yiyiphi imisebenzi yabaphuli beesekethe
Izaphuli zesekethe zisetyenziswa ikakhulu kwiimotor, iziguquli ezinomthamo omkhulu kunye nezitishi ezihlala ziqhekeza imithwalo.I-breaker circuit inomsebenzi wokuphula umthwalo wengozi, kwaye isebenzisana nokukhusela okuhlukahlukeneyo kwe-relay ukukhusela izixhobo zombane okanye imigca.
Ii-Circuit breakers zisetyenziswa ngokubanzi ekukhanyeni kwe-voltage ephantsi kunye neendawo zamandla, ezinokunqumla ngokuzenzekelayo isiphaluka;abaqhankqalazi besiphaluka nabo banemisebenzi emininzi efana nokugqithiswa kunye nokukhusela i-short-circuit, kodwa xa kukho ingxaki ngomthwalo kwinqanaba elisezantsi, ukugcinwa kuyadingeka.Indima yomqhubi wesiphaluka, kunye nomgama we-creepage we-circuit breaker akwanele.
Ngoku kukho i-breaker circuit kunye nomsebenzi wokuzihlukanisa, odibanisa imisebenzi ye-breaker circuit breaker kunye ne-switch switch.I-breaker circuit kunye nomsebenzi wokuzihlukanisa ingaba yinto yokutshintsha yodwa ngokomzimba.Enyanisweni, ukutshintshwa kwe-isolation ngokuqhelekileyo ayikwazi ukusebenza kunye nomthwalo, ngelixa i-breaker yesiphaluka inemisebenzi yokukhusela efana nesiphaluka esifutshane, ukukhuselwa komthwalo, ukungabikho kwamandla kunye nokunye.
Inkcazo ebanzi yomgaqo wokusebenza wabaphuli beesekethe
Isiseko: Isixhobo esilula sokukhusela isiphaluka yi-fuse.Ifuse lucingo nje olubhityileyo kakhulu, olunesheath ekhuselayo encanyathiselwe kwisekethe.Xa isiphaluka sivaliwe, yonke i-current kufuneka ihambe nge-fuse - i-current kwi-fuse ifana neyangoku kwezinye iindawo kwisiphaluka esifanayo.Le fuse yenzelwe ukuvuthela xa ubushushu bufikelela kwinqanaba elithile.Ifuse evuthelweyo inokudala isekethe evulekileyo ethintela umbane ogqithisileyo ekonakaliseni iingcingo zendlu.Ingxaki ngefuse kukuba isebenza kube kanye kuphela.Nanini na xa kuvuthelwe i-fuse, kufuneka itshintshwe enye.I-breaker circuit inokwenza umsebenzi ofanayo njenge-fuse, kodwa inokusetyenziswa ngokuphindaphindiweyo.Ngethuba nje ixesha elikhoyo lifikelela kwinqanaba eliyingozi, linokwenza ngokukhawuleza isekethe evulekileyo.
Umgaqo osisiseko wokusebenza: Intambo ephilayo kwisekethe ixhunyiwe kuzo zombini iziphelo zokutshintsha.Xa utshintsho lubekwe kwi-ON state, i-current iqukuqela ukusuka kwi-terminal ephantsi, nge-electromagnetic, i-contactor ehambayo, i-static contactor, kwaye ekugqibeleni i-terminal ephezulu.I yangoku iyakwazi ukwenza imagnethi kwi-electromagnetic.Amandla kazibuthe eveliswa nguzibuthe we-electromagnets ayanda njengoko ukwanda kwangoku, kwaye ukuba ikhoyo iyancipha, amandla ombane ayancipha.Xa utsiba lwangoku ukuya kumanqanaba ayingozi, umazibuthe uvelisa amandla ombane owaneleyo wokutsala intonga yentsimbi edityaniswe kunxibelelwano lokutshintsha.Oku kuthambekisa i-contactor ehambayo kude ne-static contactor, ukwaphula isiphaluka.Umsinga nawo uphazamisekile.Uyilo lwemichilo ye-bimetal lusekelwe kumgaqo ofanayo, umehluko kukuba endaweni yokunika amandla i-electromagnets, imichilo ivumelekile ukuba igobe ngokwazo phantsi kwangoku ophezulu, onokuthi usebenze ukudibanisa.Ezinye izaphuli zesekethe zizaliswe ziziqhushumbisi ukushenxisa iswitshi.Xa i-current idlula inqanaba elithile, izinto eziqhumayo ziyatshiswa, ezithi ziqhube ipiston ukuvula iswitshi.
Uphuculo: Izaphuli zesekethe ezikumgangatho ophezulu kakhulu ziphelisa izixhobo zombane ezilula ngokuthanda izinto zombane (izixhobo zesemiconductor) ukujonga amanqanaba angoku.I-interrupter fault circuit interrupter (GFCI) luhlobo olutsha lwe-circuit breaker.Le ngqungquthela yesiphaluka ayigcini nje ukuthintela umonakalo kwi-wiring endlwini, kodwa ikhusela abantu ekutshitshisweni kombane.
Umgaqo-siseko wokusebenza owomeleziweyo: I-GFCI isoloko ibeka iliso kwimisinga engathathi hlangothi kunye neengcingo eziphilayo kwisekethe.Xa konke kuhambe kakuhle, umsinga kufuneka ufane ncam kuzo zombini iingcingo.Nje ukuba ucingo oluphilayo lumiswe ngokuthe ngqo (njengomntu ochukumise ngempazamo ucingo oluphilayo), umsinga okhoyo kucingo oluphilayo luya kugobhoza ngokukhawuleza, kodwa ucingo olungathathi hlangothi aluyi.I-GFCI ivala ngokukhawuleza isekethe xa ifumanisa le meko ukuthintela ukulimala kombane.Ngenxa yokuba i-GFCI akufuneki ilinde ukuba ikhoyo inyuke iye kumanqanaba ayingozi ukuze ithathe inyathelo, isabela ngokukhawuleza kakhulu kunezaphuli zesekethe zemveli.
Ixesha lokuposa: Mar-30-2023