2023-04-10
I-Isolator switch iyi-switchgear ene-voltage ephezulu, esetshenziswa kakhulu kumasekethe anamandla kagesi.Kuyi-switchgear engenawo idivayisi yokucisha i-arc, esetshenziselwa ikakhulukazi ukunqamula isekethe ngaphandle komthwalo wamanje, ukuhlukanisa ugesi, futhi ibe nendawo esobala yokunqamula endaweni evulekile ukuze kuqinisekiswe ukuhlolwa okuphephile nokulungiswa kwezinye izinto zikagesi.Ingadlulisa ngokuthembekile umthwalo ovamile wamanje kanye nephutha lamanje lesifunda esifushane esimweni esivaliwe.Ngenxa yokuthi ayinakho idivayisi yokucisha i-arc ekhethekile, ayikwazi ukunqamula umthamo wamanje kanye nomthamo wesekethe emfishane.Ngakho-ke, ukushintshwa kokuhlukanisa kungenziwa kuphela lapho isifunda sinqanyuliwe yi-breaker circuit.Kunqatshelwe ngokuphelele ukusebenza ngomthwalo ukugwema imishini emibi kanye nezingozi zomuntu siqu.Ama-voltage transformer kuphela, izibambisi zombani, ama-no-load transformer ane-excitation yamanje engaphansi kuka-2A, kanye namasekhethi angalayishi anamanje angekho ngaphezu kwe-5A angasebenza ngokuqondile ngokushintshashintsha kokuzihlukanisa.Kuzicelo zamandla kagesi, ama-breaker circuit kanye nama-switch switches asetshenziswa kakhulu ngokuhlanganiswa, kanye ne-ama-circuit breakerszisetshenziselwa ukushintsha nokusika umthwalo (iphutha) wamanje, futhi iswishi ye-isolator yakha iphuzu elisobala lokunqamula.
II-solar panel dc isolator switchiyithuluzi lokuphepha likagesi elingakwazi ukuzinqamula ngokwalo kumamojula ohlelweni lwe-solar photovoltaic.Kuzinhlelo zokusebenza ze-photovoltaic, ama-isolator e-PV DC asetshenziselwa ukunqamula amaphaneli elanga ukuze agcinwe, afakwe noma alungiswe.Ekufakeni, ukunakekelwa okujwayelekile kanye nezimo eziphuthumayo, iphaneli idinga ukuhlukaniswa ohlangothini lwe-AC, ngakho-ke iswishi yokuhlukanisa esetshenziswa mathupha ifakwa phakathi kwephaneli nokokufaka kwe-inverter.Lolu hlobo lokushintsha lubizwa ngokuthi i-PV DC isolator switch ngoba inikeza ukuhlukaniswa kwe-DC phakathi kwephaneli ye-photovoltaic nayo yonke isistimu.Lokhu kushintshwa kokuphepha okubalulekile, okuyimpoqo kuwo wonke amasistimu okukhiqiza amandla e-photovoltaic ngokuya nge-IEC 60364-7-712.I-solar panel dc isolator switch ingenye yezingxenye ezibaluleke kakhulu zokuphepha kwesistimu ye-photovoltaic.Ukuthembeka nokuzinza kwayo kuhlobene nokukhiqizwa kwamandla okuzinzile kanye nenzuzo yesistimu ye-photovoltaic, kanye nokusebenza okuphephile nokuthembekile kwesistimu ye-photovoltaic.Ngokukhula kokufakwa kwe-photovoltaic, ukukhiqizwa kwamandla kuye kwakhanga ukunaka okukhulu.Kodwa-ke, abatshalizimali bakagesi bakhathazeka kakhulu ngezindaba zokuphepha, ezivame ukwenzeka ezitshalweni zamandla e-photovoltaic eminyakeni yamuva.
Amazwe ase-Europe anjengeJalimane ne-Netherlands adinga abakhiqizi be-inverter ukuthi balungiselele amaswishi e-isolator eyakhelwe ngaphakathi e-PV DC, kuyilapho amazwe afana ne-United Kingdom, i-India, ne-Australia adinga ukuthi amasistimu e-photovoltaic kufanele afake amaswishi angaphandle e-PV DC ahlukanisayo.Ngokucaciswa kwenqubomgomo ye-photovoltaic yaseShayina, inani lokufakwa kwe-photovoltaic liye landa unyaka nonyaka, ikakhulukazi kumasistimu we-photovoltaic asatshalaliswa, futhi izinhlelo zophahla ziye zanda kakhulu.
Kodwa-ke, okubizwa ngokuthi i-photovoltaic DC isolator switch emakethe iyinhlanganoI-AC isolator switchnoma inguqulo yezintambo elungisiwe, hhayi iswishi ehlukanisa i-DC ene-arc yangempela yokucisha kanye nemisebenzi yokusika amandla aphezulu.Lezi zishintshi ze-isolator ze-AC zishoda kakhulu ekucimeni kwe-arc kanye nokuhlukaniswa kwamandla kusuka emthwalweni, okungaholela kalula ekushiseni, ukuvuza kanye nezinhlansi, futhi kushise sonke isiteshi samandla e-photovoltaic.
Ngakho-ke, kubaluleke kakhulu ukukhetha i-solar panel dc isolator switch efanelekayo.I-BS 7671 ibeka ukuthi indlela yokuhlukanisa kufanele ihlinzekwe ngasohlangothini lwe-DC lokufakwa kwe-photovoltaic, engahlinzekwa ngeswishi ehlukanisayo ehlelwe ku-EN 60947-3.
Ngakho-ke, ungayikhetha kanjani i-PV DC efanelekile yokuhlukanisa i-switch yesistimu ye-photovoltaic?
I-voltage elinganiselwe yokusebenza yeswishi yokuhlukanisa i-DC kufanele ilingane noma ibe nkulu kunezidingo zohlelo.Ezivamile zihlangabezana ne-UL508i 600V, IEC60947-3 1000V kanye ne-1500V.Ngokuvamile i-voltage yesistimu exhunywe ku-inverter yesigaba esisodwa iphezulu njengo-600V, futhi i-inverter yentambo yezigaba ezintathu noma i-inverter emaphakathi iphezulu njengo-1000V noma i-1500V.
2 Induku – Intambo eyodwa, 4 Induku – Izintambo ezimbili.
Kuswishi ye-isolator eyakhelwe ngaphakathi ye-DC, inombolo ye-MPPT ye-inverter inquma isigxobo se-DC isolator.Iziguquli zezintambo ezivamile zine-MPPT eyodwa, i-MPPT ekabili, kanye nenani elincane le-MPPT ephindwe kathathu.Ngokuvamile, ama-inverter anamandla alinganiselwe angu-1kW～3kW amukela idizayini eyodwa ye-MPPT;ama-inverter anamandla alinganiselwe angu-3kW～30kW asebenzisa i-MPPT ekabili noma inani elincane lama-MPPT amathathu.
Ngokushintshwa kwe-isolator ye-DC yangaphandle, ungakhetha izigxobo ezi-4, izigxobo ezingu-6, izigxobo ezingu-8 zamasethi amaningi amaphaneli elanga noma izigxobo ezi-2 zeqoqo lamaphaneli elanga ngokuya ngemiklamo ehlukene yesistimu.
Iswishi ye-isolator ye-PV DC kufanele ikhethwe ngokuya nge-voltage ephezulu kanye neyamanje yeyunithi yezinhlamvu zephaneli.Uma umsebenzisi azi amapharamitha we-photovoltaic inverters, ikakhulukazi abakhiqizi be-inverter, ukuze asindise ngokuphumelelayo izindleko, angakhetha ngokusho kokufakwayo kwe-DC voltage kanye nejika lamanje ukuze aqinisekise ukuthi angasetshenziswa kuzo zonke izimo zezulu namazinga okushisa.
I-BS 7671 ibeka ukuthi amaswishi ahlukanisayo athobela i-EN 60947-3 afanele amasistimu we-photovoltaic.Inani elilinganiselwe leswishi ye-isolator kufanele licabangele i-voltage ephezulu kanye nenani lamanje lentambo ye-photovoltaic ukuze lihlukaniswe, bese lilungisa le mingcele ngokuya ngesici sokuphepha esishiwo yindinganiso yamanje.Lokhu kufanele kube isilinganiso esincane esidingekayo kushintsho lwe-isolator.
Izinga lokushisa kwendawo yokusebenza, izinga lokuvikela kanye nezinga lokuvikela umlilo kufanele linqunywe ngokuya ngendawo ezungezile.Ngokuvamile i-PV DC isolator switch enhle ingasetshenziswa ngokuphepha endaweni yokushisa engu -40°C kuya ku-60°C.Ngokuvamile, izinga lokuvikela leswishi yokuhlukanisa i-DC yangaphandle kufanele ifinyelele ku-IP65;inkinobho eyakhelwe ngaphakathi ye-DC isolator kufanele iqinisekise ukuthi okokusebenza kufinyelela ku-IP65.Isilinganiso somlilo sebhokisi lezindlu noma indikimba eyinhloko izothobelana ne-UL 94V-0, futhi isibambo sizothobelana ne-UL 94V-2.
Abasebenzisi bangakhetha imodi efanele ngokwezidingo zangempela.Ngokuvamile, kukhona ukufakwa kwamaphaneli, ukufakwa kwesisekelo nokufakwa kwembobo eyodwa.
I-Dongguan Slocable Photovoltaic Technology Co.,LTD.
Engeza:Guangda Manufacturing Hongmei Science and Technology Park, No. 9-2, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, China
TEL:0769-22010201
