Umuyoboro wa DC ni iki?

Imashanyarazi ya DC yerekeza kumashanyarazi ikoreshwa muri sisitemu yo gukwirakwiza amashanyarazi ya DC, ishobora kurinda ibikoresho byamashanyarazi bikoresha ingufu za DC.Mubisanzwe birakwiriye kubyara ingufu z'amashanyarazi akomoka ku mirasire y'izuba hamwe na sisitemu yo gukwirakwiza amashanyarazi, sisitemu yo kubika ingufu za batiri, hamwe na sisitemu nshya yo gutwara amashanyarazi DC.Slocable izuba DC yamashanyarazizashizweho kugirango zirinde insinga ziri hagati ya buri tsinda rya modules ya PV na PV inverteri zirenze urugero n’umuzunguruko mugufi wa DC, kandi zishyirwa mumurongo wo kurinda PV kumpera ya buri mugozi wa PV modules.

Iyinjiza ryumuriro wa DC yamashanyarazi ni sisitemu yumuyaga utaziguye.Rusange ya DC yamashanyarazi irimo DC MCB (DC miniature circuit breaker), DC MCCB (DC molded case circuit breaker) hanyuma wandike B RCD (igikoresho gisigaye).

DC Miniature yamashanyarazi (DC MCB)

DC miniature yamashanyarazi yagenewe porogaramu zumuzunguruko wa DC kuburinzi burenze kandi bugufi bwo kurinda ibikoresho mubikoresho cyangwa ibikoresho byamashanyarazi.DC mini yamashanyarazi yamashanyarazi ifite magnet idasanzwe ihatira arc mumwanya wa arc ikazimya arc mugihe gito cyane.

Umuzunguruko wa DC urashobora gufungwa mumwanya wa OFF ukoresheje igikoresho cyo gufunga nkigipimo cyumutekano cyo gusenya inverteri ya PV.Kubera ko ikosa rishobora gutembera mu cyerekezo gitandukanye nigikorwa cyogukora, icyuma cyumuzunguruko wa DC kirashobora kumenya no gukumira icyerekezo icyo aricyo cyose cyerekezo.Ibyo ari byo byose, ibikorwa byihuse mu murima birasabwa gukuraho amakosa agezweho.

DC miniature yamashanyarazi ikoreshwa cyane cyane muri sisitemu ya DC nkingufu nshya, izuba ryamafoto yizuba hamwe na sisitemu yo kubika ingufu za batiri.Umuvuduko wa voltage ya DC mini yameneka muri rusange ni DC 12V-1500V.

DC MCB na AC MCB bifite imikorere imwe, itandukaniro nyamukuru ni ibipimo bifatika byibicuruzwa.Byongeye kandi, imikoreshereze ya AC MCB na DC MCB iratandukanye.

Imashanyarazi ya AC yamenetse ku bicuruzwa nka LOAD na LINE, kandi ikimenyetso cyumuzingi wa DC cyerekanwe kubicuruzwa nkibintu byiza (+), ibimenyetso bibi (-) nicyerekezo cyubu.

Ni ubuhe Bikorwa bwa DC Mini Yumuzunguruko?

Amahame yo gukingira amashyuza na magnetiki kimwe na AC yamashanyarazi akoreshwa kuri DC miniature yamashanyarazi:

Kurinda ubushyuhe bigenda DC mini yamashanyarazi iyo ikigezweho kirenze agaciro kagenwe.Muri ubu buryo bwo kurinda, guhuza bimetallic kwaguka cyane no gutembera kumashanyarazi.Kurinda Ubushyuhe bukora vuba kuko ubushyuhe bwinshi butangwa kugirango twagure kandi dufungure amashanyarazi mugihe ikigezweho ari kinini.Kurinda ubushyuhe bwa DC yamashanyarazi irinda imizigo irenze gato ugereranije nibikorwa bisanzwe.

Ingendo zo gukingira Magnetic ingendo DC MCBs mugihe imbaraga zikomeye zihari, kandi igisubizo gihora mukanya.Kimwe na AC yamashanyarazi, ubushobozi bwo kumeneka bwa DC yameneka byerekana ikosa rikomeye rishobora guhagarikwa.Kuri DC mini yameneka, umuyagankuba wahagaritswe uhoraho, bivuze ko umuzunguruko ugomba gukomeza gufungura amashanyarazi kugirango uhagarike amakosa.Kurinda magnetiki ya DC miniature yamashanyarazi irinda urwego runini rwumuzunguruko mugufi namakosa kuruta kurenza urugero.

Kuki DC Solar Circuit yameneka ari ngombwa kuri sisitemu ya PV?

Sisitemu ya Photovoltaque ifite ubushobozi bwo kuba uburyo bwiza bwo kongera ingufu.Imirasire imwe cyangwa myinshi yizuba irashobora gukoreshwa, cyangwa irashobora guhuzwa ukoresheje inverter nibindi bikoresho byamashanyarazi nubukanishi.Sisitemu ya PV igomba kubungabungwa uko byagenda kose, kandi ibyabaye byose birashobora kwiyongera vuba mubibazo bikomeye kuri sisitemu yose.

Kubwibyo, imirasire yizuba ya DC nigice cyingenzi cya sisitemu ya Photovoltaque, kandi kurinda ubushyuhe birashobora gufasha mubihe birenze urugero.Kurinda magnetiki mumashanyarazi ya DC yamashanyarazi arashobora gutembera kumirasire yizuba mugihe hari amashanyarazi menshi.Imashanyarazi ya DC irashobora guhagarika amakosa yinzitizi no mubihe bikabije.Kurinda magnetique nibyingenzi mumashanyarazi ya DC kuko arinda imiyoboro migufi nibindi byananiranye.

Imashini yamashanyarazi ya Photovoltaque ningirakamaro muri sisitemu yizuba ya PV.Umuzenguruko w'izuba ni ikintu gihenze cya sisitemu yo gufotora.Kubwibyo, ni ngombwa kubarinda hamwe nizuba ryizuba rya PV.Imashanyarazi ya PV DC nayo irinda imirongo hamwe nimbaho ​​zumuzunguruko.Irashobora guhindura imirasire yizuba mumashanyarazi itaziguye ikoresheje imirasire yizuba, kandi ibyuma bifotora bisaba gukoresha amashanyarazi ya PV.

Ku binyabiziga byamashanyarazi, bateri zabo zirashobora kwishyurwa ukoresheje sitasiyo yumuriro wamashanyarazi.Izi sisitemu rero zikeneye DC MCBs kugirango birinde impanuka kuko zose zikeneye gukoresha amashanyarazi ataziguye, imirasire yizuba hamwe nimodoka zamashanyarazi zikorana neza, kandi ntanubwo zikeneye guhindura uwo muyoboro utaziguye uhinduranya amashanyarazi, ushobora kugenzurwa byoroshye ukoresheje a Sisitemu ya DC yamashanyarazi kugirango isubize vuba.

Ubundi bwoko bwa DC Kumena Inzira - DC Molded Case Circuit Breaking (DC MCCB)

DC yacometse kumashanyarazi yamashanyarazi nibyiza kubika ingufu, ubwikorezi ninganda za DC.Ibicapo byabigenewe byashizweho kugirango byuzuze ibisabwa hejuru, mugihe ibikoresho bitandukanye birahari kugirango bihuze umurima utandukanye.Uyu munsi DC MCCBs yaguye porogaramu zirimo amashanyarazi akomoka ku mirasire y'izuba, sitasiyo yumuriro w'amashanyarazi, ububiko bwa batiri na sisitemu ya UPS, hamwe no gukwirakwiza amashanyarazi ya DC n'inganda.

DC MCCB ifite imikorere imwe na AC MCCB, kandi ifite imitwaro irenze urugero hamwe nigihe gito cyo kurinda imiyoboro ya sisitemu yo gukwirakwiza amashanyarazi menshi.

Zikoreshwa kandi mumashanyarazi adafite ingufu zumuzunguruko kugirango zisubizwe byihutirwa nimbaraga zo gusubira inyuma.Kuboneka kugeza 150A, 750 VDC no kugeza 2000A, 600 VDC.Kumashanyarazi ya DC akoreshwa muri sisitemu yifoto yumuriro mugukoresha imirasire yizuba, ubwubatsi bwa progaramu no gusuzuma byemeza ko ibyangombwa byo kurinda byujujwe.

DC Molded Case Circuit Breaker nigikoresho cyo kugenzura imiyoboro yo kubika ingufu, gutwara no gutwara inganda za DC.Birashobora gukoreshwa kuri sisitemu zidafite ishingiro cyangwa zidafite aho zihuriye, zihura n’umuvuduko mwinshi hamwe n’urwego rwo hasi rwizuba rwizuba.Slocable ikora amashanyarazi menshi ya DC yamashanyarazi itanga imikorere isumba iyindi kandi igafasha kugabanura ibiciro, kumena MCCB DC ya Slocable bigera kuri 150-800A, 380V-800V DC kandi byujuje ubuziranenge bukomeye.

Itandukaniro Hagati ya AC na DC Kumena Inzira

Itandukaniro nyamukuru hagati yumuyaga utaziguye no guhinduranya ni uko ibisohoka voltage yumurongo utaziguye uhoraho.Ibinyuranyo, imbaraga za voltage zisimburana zizunguruka inshuro nyinshi kumasegonda, kandi ikimenyetso cyumuyaga uhora uhindura agaciro buri segonda.Inzira yamashanyarazi arc izazimya kuri 0 V kandi umuzenguruko uzarindwa umuyaga mwinshi.Ariko ibimenyetso byumuyaga wa DC ntabwo bisimburana, bikora muburyo buhoraho, kandi agaciro ka voltage karahinduka gusa mugihe ingendo zumuzunguruko cyangwa umuzunguruko ugabanutse kugiciro runaka.

Bitabaye ibyo, umuzenguruko wa DC uzatanga voltage ihoraho kumasegonda imwe kumunota.Kubwibyo, ntabwo byemewe gukoresha AC yamashanyarazi muri leta ya DC kuva ntahantu 0-volt muri leta ya DC.

Icyitonderwa Mugihe Kugura Imashanyarazi

Kuberako uburyo bwo gukingira imiyoboro ya AC na DC burasa, ibice byumuzunguruko byihariye byashizweho kugirango bikoreshe byombi.Nyamara, ni ngombwa kugenzura inshuro ebyiri ko amashanyarazi n'amashanyarazi ari ubwoko bumwe bwubu.Niba ushyize kumashanyarazi itariyo, kwishyiriraho ntabwo bizarindwa bihagije kandi impanuka yumuriro irashobora kubaho.

Ikindi kintu cyingenzi kigomba kwitabwaho ni igipimo cyubu cyinsinga zihuza DC mini yamashanyarazi kumashanyarazi akingiwe.Nubwo washyiraho DC yameneka neza, insinga zidafite umurongo zirashobora gushyuha, gushonga insulasiyo no gutera amashanyarazi.

Imashanyarazi ya DC ntabwo ikoreshwa cyane nka AC yamashanyarazi, ariko ningirakamaro.DC MCBs ni tekinolojiya mishya ugereranije, kuko ibikoresho byinshi byo murugo bigenda bisimburana.Imirasire y'izuba ya Solar DC igira uruhare runini mukurinda amashanyarazi tekinoroji ihenze cyane yo kuzigama ingufu nk'amatara ya LED, imirasire y'izuba ifotora, n'imodoka z'amashanyarazi.Mugihe ubwo buhanga bugera kubaguzi benshi, imirasire y'izuba izagira isoko rinini.Ku rundi ruhande, imashanyarazi ya DC ni tekinoroji izwi kandi izwi cyane mu bucuruzi, kandi igira uruhare runini mu kurinda imashini zisobanutse neza no gusudira arc.

Iyo sisitemu y'amashanyarazi isaba gukoresha imashanyarazi itaziguye, birasabwa kugumana serivisi zaba injeniyeri ninzobere mu bya tekinike kugirango umenye neza ko ushobora guhitamo no gushiraho ibyuma bikoresha amashanyarazi bikwiranye na DC.