2023-04-10
Isolator switch ndi chosinthira chamagetsi champhamvu kwambiri, chomwe chimagwiritsidwa ntchito makamaka pamabwalo okwera kwambiri.Ndi switchgear popanda arc kuzimitsa chipangizo, makamaka ntchito kusagwirizana dera popanda katundu pakali pano, kudzipatula magetsi, ndi zodziwikiratu kulumikiza malo poyera kuonetsetsa kuyang'anira otetezeka ndi kukonza zida zina zamagetsi.Ikhoza modalirika podutsa katundu wabwinobwino panopa ndi yochepa dera cholakwika panopa chatsekedwa boma.Chifukwa ilibe chipangizo chozimitsa chapadera cha arc, sichingadutse katundu wapano komanso wanthawi yayitali.Chifukwa chake, chosinthira chodzipatula chimatha kugwiritsidwa ntchito pokhapokha ngati dera latsekedwa ndi wowononga dera.Ndizoletsedwa kugwira ntchito ndi katundu kuti tipewe zida zazikulu ndi ngozi zaumwini.Zosintha zamagetsi zokha, zotsekera mphezi, zosinthira zopanda katundu zokhala ndi chisangalalo zosakwana 2A, komanso mabwalo opanda katundu omwe ali ndi masiku osapitilira 5A amatha kuyendetsedwa mwachindunji ndi masiwichi odzipatula.Pamagetsi amagetsi, zowononga ma circuit ndi ma switch odzipatula nthawi zambiri amagwiritsidwa ntchito kuphatikiza, ndi maowononga deraamagwiritsidwa ntchito kusinthana ndi kudula katundu (cholakwa) panopa, ndipo chosinthira odzipatula amapanga chodziwikiratu kuluka mfundo.
Thesolar panel dc isolator switchndi chipangizo chotetezera magetsi chomwe chingathe kudzichotsa pamanja kuchokera ku ma modules mu solar photovoltaic system.Mu mapulogalamu a photovoltaic, PV DC isolator imagwiritsidwa ntchito kulumikiza pamanja mapanelo adzuwa kuti akonze, kuyika kapena kukonza.Pakuyika, kukonza nthawi zonse komanso zochitika zadzidzidzi, gululi liyenera kukhala lolekanitsidwa ndi mbali ya AC, kotero chosinthira chodzipatula chomwe chimayendetsedwa pamanja chimayikidwa pakati pa gulu ndi inverter input.Kusintha kwamtunduwu kumatchedwa PV DC isolator switch chifukwa imapereka kudzipatula kwa DC pakati pa gulu la photovoltaic ndi dongosolo lonse.Ichi ndi chosinthira chofunikira kwambiri chachitetezo, chomwe chili chovomerezeka pamakina aliwonse opangira magetsi a photovoltaic malinga ndi IEC 60364-7-712.Solar panel dc isolator switch ndi imodzi mwazinthu zofunika kwambiri pachitetezo cha chitetezo cha photovoltaic.Kudalirika kwake ndi kukhazikika kwake kumagwirizana ndi mphamvu zokhazikika komanso zopindulitsa za photovoltaic system, komanso ntchito yotetezeka komanso yodalirika ya photovoltaic system.Ndi kuwonjezeka kwa makhazikitsidwe a photovoltaic, kupanga magetsi kwakopa chidwi kwambiri.Komabe, ochita malonda a magetsi akudandaula kwambiri za chitetezo, zomwe zakhala zikuchitika kawirikawiri muzitsulo zamagetsi za photovoltaic m'zaka zaposachedwa.
Mayiko aku Europe monga Germany ndi Netherlands amafuna kuti opanga ma inverter akhazikitse ma switch odzipatula a PV DC, pomwe mayiko monga United Kingdom, India, ndi Australia amafuna kuti makina a photovoltaic akhazikitse masiwichi akunja a PV DC.Ndi kufotokozedwa kwa ndondomeko ya photovoltaic ya China, chiwerengero cha makhazikitsidwe a photovoltaic chawonjezeka chaka ndi chaka, makamaka kwa machitidwe ogawidwa a photovoltaic, ndipo machitidwe a padenga ayamba kutchuka kwambiri.
Komabe, otchedwa photovoltaic DC isolator switch pa msika ndiAC isolator switchkapena mtundu wosinthidwa wamawaya, osati chosinthira chodzipatula cha DC chokhala ndi zozimitsa zenizeni za arc ndi ntchito zodula kwambiri.Ma switch awa a AC odzipatula akusowa kwambiri kuzimitsa kwa arc ndi kudzipatula kwa mphamvu kuchokera ku katundu, zomwe zingayambitse kutenthedwa, kutayikira ndi kuphulika, komanso kuwotcha malo onse opangira magetsi a photovoltaic.
Chifukwa chake, ndikofunikira kusankha chosinthira chowongolera cha solar dc isolator.BS 7671 imanena kuti njira yodzipatula iyenera kuperekedwa kumbali ya DC ya kuyika kwa photovoltaic, yomwe imatha kuperekedwa ndi chosinthira chodzipatula chomwe chili mu EN 60947-3.
Ndiye, mungasankhire bwanji chosinthira chodzipatula cha PV DC cha pulogalamu ya photovoltaic?
Mphamvu yamagetsi yamagetsi yodzipatula ya DC iyenera kukhala yofanana kapena yokulirapo kuposa zomwe zimafunikira pamakina.Ambiri amakumana ndi UL508i 600V, IEC60947-3 1000V ndi 1500V.Nthawi zambiri voteji dongosolo olumikizidwa kwa inverter limodzi gawo ndi mkulu monga 600V, ndi magawo atatu chingwe inverter kapena chapakati inverter ndi mkulu monga 1000V kapena 1500V.
2 Mzati – Chingwe chimodzi, 4 Mzati – Zingwe ziwiri.
Pakusintha kwa DC isolator, kuchuluka kwa MPPT kwa inverter kumatsimikizira mtengo wa DC isolator.Ma inverter wamba ali ndi MPPT imodzi, MPPT iwiri, ndi MPPT yaying'ono itatu.Nthawi zambiri, ma inverters okhala ndi mphamvu zovoteledwa za 1kW～3kW amatengera kapangidwe ka MPPT kamodzi;ma inverters okhala ndi mphamvu zovoteledwa za 3kW～30kW amatengera MPPT wapawiri kapena ochepa atatu MPPT.
Kwa chosinthira chakunja cha DC chodzipatula, mutha kusankha mizati 4, mizati 6, mizati 8 yamagulu angapo a mapanelo adzuwa kapena mizati 2 ya seti ya mapanelo adzuwa molingana ndi mapangidwe osiyanasiyana.
Chosinthira cha PV DC chodzipatula chiyenera kusankhidwa molingana ndi voteji yayikulu komanso yomwe ilipo pa chingwe cha gulu.Ngati wosuta amadziwa magawo a photovoltaic inverters, makamaka opanga ma inverter, kuti apulumutse bwino ndalama, akhoza kusankha malinga ndi mphamvu yamagetsi ya DC ndi mapindikidwe amakono kuti atsimikizire kuti angagwiritsidwe ntchito nyengo zonse ndi kutentha.
BS 7671 imanena kuti ma switch odzipatula omwe amatsatira EN 60947-3 ndi oyenera pamakina a photovoltaic.Mtengo wovoteledwa wa switch ya isolator uyenera kuganizira kuchuluka kwamagetsi komanso komwe chingwe cha photovoltaic chikhale chodzipatula, ndiyeno sinthani magawowa molingana ndi chitetezo chomwe chikufotokozedwa ndi muyezo wapano.Izi ziyenera kukhala zocheperako zomwe zimafunikira pakusintha kwapaokha.
Kutentha kwa malo ogwirira ntchito, mlingo wa chitetezo ndi mlingo wa chitetezo cha moto ziyenera kutsimikiziridwa molingana ndi chilengedwe.Nthawi zambiri chosinthira chabwino cha PV DC chodzipatula chimatha kugwiritsidwa ntchito motetezeka pa kutentha kozungulira -40°C mpaka 60°C.Nthawi zambiri, mulingo wachitetezo cha switch yodzipatula ya DC yakunja iyenera kufikira IP65;chosinthira chodzipatula cha DC chiyenera kuwonetsetsa kuti zida zafika IP65.Mtengo wamoto wa bokosi la nyumba kapena bungwe lalikulu liyenera kutsatira UL 94V-0, ndipo chogwiriracho chiyenera kutsatira UL 94V-2.
Ogwiritsa ntchito amatha kusankha njira yoyenera malinga ndi zosowa zenizeni.Nthawi zambiri, pali kuyika kwamagulu, kuyika maziko ndi kuyika kwa dzenje limodzi.
Dongguan Slocable Photovoltaic Technology Co., LTD.
Onjezani: Guangda Manufacturing Hongmei Science and Technology Park, No. 9-2, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, China
TEL: 0769-22010201
