Ka ho kenya PV, theDC disconnect switche tšoana le airbag ka koloing.Tekanyetso ea IEC 60364-7-712 e hloka hore ho sebelisoe li-switches tsa PV DC pakeng tsa PV array le inverter.Li-slocable DC disconnect switches li etselitsoe ka ho khetheha ho hokela li-inverters tsa DC/AC ho tsoa ho liphanele tsa letsatsi.Re fana ka li-switches tsa ho hakolla tsa PV bakeng sa maqhubu a fihlang ho 1500 V DC.Li ka sebelisoa ho theha lintlha tse ikemetseng tse feto-fetohang joalo ka ha ho hlokoa ke VDE 6012, mohlala, ho lumella ho khaoha ho sireletsehileng ha li-inverters tse senyehileng.Li-switches tsohle tsa DC switch switch li na le lipalo tse peli 'me li loketse lits'ebetso tse epolotsoeng.
Ntlo ea switch ea PV disconnect e se e loketse ho kengoa mme e fana ka ts'ebetso ea hajoale ea 30 A ho 1000 V/1500 V DC.E fumaneha ka likhoele tse peli le tse 'ne hammoho le mefuta e' meli e tloaelehileng ea likhokahanyo bakeng sa khokahano.Litšoelesa tsa MC4 kapa metric cable li lumella ho hokahana ha bonolo mehopolong e fapaneng ea sistimi.Sebaka sa DC disconnect switch se na le sehlopha sa tšireletso sa IP66 'me ka hona se loketse ho kenngoa ka ntle.Mosebetsi oa ho notlela o fana ka tšireletso nakong ea ts'ebeletso le tlhokomelo.Karolo ea matšeliso ea khatello e thibela condensation ho bokella 'me kahoo e thibela ho hlōleha ka lebaka la lehalima.
Ke Eng e Lokelang ho Nahaneloa Pele U Reka PV Disconnect switch?
1. U hloka mofuta ofe?
U hloka ho nahana ka mofuta oa sesebelisoa sa ho hakolla sa PV se hlokahalang, mohlala ho utloisisa litlhoko tsa hau tsa matla.Slocable e na le li-switches tsa hakolla ho tloha ho DC 1000V ho isa ho 1500V.Haeba u batla tharollo e ikhethileng, re ka boela ra fana ka li-switches tsa ho hakolla tsa PV bakeng sa 600V, 800V, 1000V, 1200V kapa 1500V.
2. Voltage le hona joale
Haeba u batla ho kenya sesebelisoa sa DC disconnect, u tlameha ho lekana mabitso a eona ho netefatsa hore e khona ho amohela matla a fetisoang ka gridi ea eona.
Haeba o hloka maqhubu a phahameng, o tla hloka likhokahano tse ngata ho li tšehetsa ho qoba mocheso o feteletseng oa sistimi ea motlakase.Li-switches tsa rona tsa Slocable PV tsa ho hakolla li tloha ho 1000V, 1200V ho isa ho 1500 mme li fuoe lintlha ho 32A le 55A.
3. Litifikeiti tsa IEC le AS
Ntho e 'ngoe eo u ka e nahanang ke ho tseba litifikeiti tsa IEC le AS.Haeba moetsi oa switch switch ea DC a e-na le litifikeiti tsena, ho bolela hore k'hamphani e latela litataiso tsa machabeng ha e etsa PV DC e hakolla lihlahisoa tsa switch.
Mohlala, karolong ea pele ea EIC 60204-1: 2016, moetsi o tlameha ho fana ka li-switches tsa ho hakolla tse sebelisoang ka letsoho bakeng sa mohloli o mong le o mong oa motlakase o kentsoeng hammoho le mekhahlelo e itseng ea moralo.
4. Mokhoa oa ho kenya
U tla boela u nahane ka sebaka seo u se ratang bakeng sa ho kenya sesebelisoa sa DC disconnect le mokhoa oa ho kenya o loketseng kopo ea hau.Setaele se atileng haholo ke sehokelo sa masoba a mane, se hahiloeng ka mokhoa oa lisekoere ka likoti tse 'ne sekhutlong se seng le se seng.Setaele sena se nepahetse haeba u ikemiselitse ho beha switch sebakeng se bataletseng, kaha se lumella switch hore e be matla ka hohle kamoo ho ka khonehang.
Likarolo tsa Slocable PV DC disconnect switch:
1. Likhokahano tse ka tšeptjoang haholo tsa thipa le kamore e pholileng ea arc e telele e netefatsa ho itšehla thajana ho sireletsehileng ha motlakase oa DC.
2. Eketsa ts'ireletso ka ts'ebetso ea "Security Lock" ea Slocable.
3. The Slocable PV disconnect switch series e fumaneha ka mefuta ea 2 ho ea ho 8 le ka mefuta e sa tšoaneng ea ho kenya le ho sebetsana le litlhophiso bakeng sa lisebelisoa tse ngata tsa OEM kapa tsa tšimo.
Liphetoho tsena tsa PV li 'nile tsa lekoa ke bahlahlobi' me ke UL508i, TUV (60947-1 & 60947-3), CE le CCC tse netefalitsoeng.
Slocable e boetse e fana ka lisebelisoa tse ling tsa PV tsa letsatsi, ho kenyeletsoa lihokelo tsa Solar MC4, li-fuse holders tsa MC4, mabokose a kopaneng a photovoltaic le basireletsi ba surge ba DC.
2023-05-08
