2023-04-10
Isolator ihinduranya ni voltage nini cyane, ikoreshwa cyane mumashanyarazi menshi.Nibikoresho bidafite ibyuma bizimya arc, cyane cyane bikoreshwa muguhagarika umuzenguruko udafite imizigo, gutandukanya amashanyarazi, kandi bifite aho bihurira bigaragara kumugaragaro kugirango harebwe neza kandi hasanwe nibindi bikoresho byamashanyarazi.Irashobora kwizerwa kwizerwa ryumutwaro usanzwe hamwe nigihe gito-cyumuzunguruko mugihe cyafunzwe.Kuberako idafite igikoresho cyihariye cyo kuzimya arc, ntishobora guca imizigo yumuvuduko nigihe gito cyumuzunguruko.Kubwibyo, uburyo bwo kwigunga bushobora gukoreshwa gusa mugihe uruziga rwaciwe na break break.Birabujijwe rwose gukorana umutwaro kugirango wirinde ibikoresho bikomeye nimpanuka.Gusa impinduramatwara ya voltage, abafata inkuba, nta-imitwaro ihinduranya hamwe na moteri ishimishije iri munsi ya 2A, kandi ntamuzigo utwara imizigo utarenze 5A urashobora gukoreshwa muburyo butaziguye.Mu mashanyarazi akoreshwa, amashanyarazi yamashanyarazi hamwe na sisitemu yo kwigunga ikoreshwa cyane muguhuza, hamwe naimiyoboro yamashanyaraziByakoreshejwe muguhindura no kugabanya umutwaro (amakosa) ikigezweho, hamwe na sisitemu yo kwigunga ikora ingingo igaragara.
Uwitekaimirasire y'izuba dc izitandukanyani igikoresho cyumutekano wamashanyarazi gishobora kwifashisha intoki muri modul muri sisitemu yifoto yizuba.Muri porogaramu zifotora, izitandukanya PV DC zikoreshwa muguhagarika intoki imirasire yizuba kugirango ibungabunge, iyishyireho cyangwa isanwe.Mugushiraho, kubungabunga bisanzwe hamwe nibihe byihutirwa, akanama gakeneye gutandukanywa kuruhande rwa AC, kubwibyo intoki ikoreshwa nintoki yashyizwe hagati yikibaho ninjiza yinjira.Ubu bwoko bwa switch bwitwa PV DC isolator switch kuko itanga DC kwigunga hagati yumwanya wamafoto na sisitemu isigaye.Nibintu byingirakamaro byumutekano, bikaba itegeko muri buri sisitemu yo kubyara amashanyarazi ukurikije IEC 60364-7-712.Imirasire y'izuba dc isolator ni kimwe mubice byingenzi bigize umutekano wa Photovoltaque.Kwizerwa no gutekana kwayo bifitanye isano no kubyara ingufu zihamye hamwe ninyungu za sisitemu ya fotokoltaque, hamwe nibikorwa byizewe kandi byizewe bya sisitemu ya fotora.Hamwe no kwiyongera kwamafoto yerekana amashanyarazi, kubyara ingufu byakuruye abantu benshi.Nyamara, abashoramari b'amashanyarazi bagenda bahangayikishwa n'ibibazo by'umutekano, bikunze kugaragara mu mashanyarazi y’amashanyarazi mu myaka yashize.
Ibihugu by’Uburayi nk’Ubudage n’Ubuholandi birasaba abakora inverter kugirango bashiremo ibyuma byubatswe bya PV DC, mu gihe ibihugu nk’Ubwongereza, Ubuhinde, na Ositaraliya bisaba ko sisitemu y’amafoto igomba gushyiraho amashanyarazi ya PV DC yo hanze.Hamwe no gusobanura politiki y’amafoto y’Ubushinwa, umubare w’ibikoresho bifotora byiyongereye uko umwaka utashye, cyane cyane kuri sisitemu zikwirakwizwa n’amashanyarazi, kandi sisitemu yo hejuru yo hejuru ikaba yaramamaye cyane.
Ariko, ibyo bita Photovoltaic DC izigunga ku isoko ni anGuhindura ACcyangwa verisiyo yahinduwe ya wiring, ntabwo DC itandukanya ibintu hamwe na arc kuzimya nyayo hamwe nimbaraga zikomeye zo guca.Ihinduramatwara ya AC izitandukanya irabuze cyane mu kuzimya arc no gutandukanya ingufu ziva mu mutwaro, ibyo bikaba bishobora gutuma habaho ubushyuhe bukabije, kumeneka no gucana, ndetse bigatwika sitasiyo yose y’amashanyarazi.
Kubwibyo, ni ngombwa cyane guhitamo icyerekezo cyizuba cyujuje ibyangombwa dc isolator switch.BS 7671 iteganya ko uburyo bwo kwigunga bugomba gutangwa kuruhande rwa DC rwo kwishyiriraho amafoto, bishobora gutangwa na switch yonyine yashyizwe muri EN 60947-3.
None, nigute ushobora guhitamo PV DC ikwirakwiza sisitemu yo gufotora?
Umuvuduko wakazi ukora wa DC utandukanya ibintu bigomba kuba bingana cyangwa birenze ibisabwa na sisitemu.Ibisanzwe bihura na UL508i 600V, IEC60947-3 1000V na 1500V.Mubisanzwe sisitemu ya voltage ihujwe na feri imwe inverter iba hejuru ya 600V, naho iniverisite yibice bitatu cyangwa inverteri ikomatanya ni hejuru ya 1000V cyangwa 1500V.
2 Inkingi - Umugozi umwe, Inkingi 4 - Umugozi ibiri.
Kubintu byubatswe muri DC byigenga, umubare wa MPPT ya inverter ugena inkingi ya DC.Inkingi zisanzwe zifite MPPT imwe, MPPT ebyiri, hamwe na MPPT eshatu.Muri rusange, inverters ifite imbaraga zingana na 1kW ～ 3kW ifata igishushanyo kimwe cya MPPT;inverter ifite imbaraga zapimwe za 3kW ～ 30kW zifata MPPT ebyiri cyangwa umubare muto wa MPPT.
Kuri DC yohasi yo hanze, urashobora guhitamo inkingi 4, inkingi 6, inkingi 8 kumirasire myinshi yizuba cyangwa inkingi 2 kumurongo wizuba ukurikije ibishushanyo mbonera bitandukanye.
PV DC izitandukanya igomba guhitamo ukurikije voltage ntarengwa hamwe numuyoboro wumugozi.Niba umukoresha azi ibipimo byamafoto ya fotora, cyane cyane abakora inverter, kugirango babike neza ibiciro, barashobora guhitamo bakurikije amashanyarazi ya DC yinjiye hamwe nu murongo ugenda kugirango barebe ko bishobora gukoreshwa mubihe byose nubushyuhe.
BS 7671 iteganya ko gutandukanya ibintu byujuje EN 60947-3 bikwiranye na sisitemu yo gufotora.Agaciro kagereranijwe ka sisitemu yo kwigunga igomba gutekereza kuri voltage ntarengwa nuyoboro wumugozi wa fotovoltaque kugirango wigunge, hanyuma uhindure ibipimo ukurikije ibintu byumutekano byagenwe nubu.Ibi bigomba kuba igipimo ntarengwa gisabwa kugirango uhindure wenyine.
Ubushyuhe bwibidukikije bukora, urwego rwo kurinda nurwego rwo kurinda umuriro bigomba kugenwa ukurikije ibidukikije.Mubisanzwe icyuma cyiza cya PV DC gishobora gukoreshwa neza mubushyuhe bwibidukikije -40 ° C kugeza 60 ° C.Mubisanzwe, urwego rwo kurinda urwego rwo hanze DC rwitandukanya rugomba kugera kuri IP65;ibyubatswe muri DC byigenga bigomba kwemeza ko ibikoresho bigera kuri IP65.Igipimo cy’umuriro cy agasanduku k'amazu cyangwa umubiri nyamukuru kigomba kubahiriza UL 94V-0, naho ikiganza kigomba kubahiriza UL 94V-2.
Abakoresha barashobora guhitamo uburyo bukurikije ibikenewe.Mubisanzwe, hariho kwishyiriraho ibice, gushiraho shingiro no kwishyiriraho umwobo umwe.
Dongguan Slocable Photovoltaic Technology Co, LTD.
Ongeraho Park Guangda Gukora Hongmei Ubumenyi n’ikoranabuhanga, No 9-2, Igice cya Hongmei, Umuhanda wa Wangsha, Umujyi wa Hongmei, Dongguan, Guangdong, Ubushinwa
TEL ： 0769-22010201
