Kukosha uye nzira yekusarudza yakakodzera photovoltaic DC switch
Unhu hwe photovoltaic DC switches yakaita kuti makambani akawanda ezuva reAustralia avhare magonhi avo
Makambani akawanda ezuva reAustralia akawedzera kuvhara magonhi avo nekuda kweasina kukodzera OEM PV DC switch.Vanenge vese vekuAustralia vanogovera vanosarudza kutengesa kunze zvakachipa DC switch neOEM.
Chekutanga, zviri nyore kuOEM ma switch.Chete zita rechiratidzo uye kurongedza zvinotsiviwa, uye fekitori yekutanga iri nyore kushandirapamwe.
Chechipiri, aya mafekitori ekutanga anowanzo madiki mashopu uye hapana.Kuziva kwechiratidzo, diki, uye kuda kushandira pamwe.Vashambadziri vanogona kuwedzera kukosha kwechichipa DC switch nekunyora mabhureki emunharaunda eAustralia ekutengesa.Vashambadziri vanofanirwa kutora ese anotevera emhando yekusimbisa masevhisi ezvigadzirwa zveOEM uye kutora mabasa ese ematambudziko echigadzirwa.
Nenzira iyi, kana chigadzirwa chave nematambudziko emhando, vatengesi vanotora njodzi yakanyanya uye vanokanganisa yavo yemhando.Ichi ndichowo chikonzero chikuru chekubhuroka kwemakambani aya.
Matambudziko makuru neaya maDC switch ndeaya:
1. Kurwisana kwepamusoro kwekubatana kunokonzera kupisa uye kunyange moto;
2. Shanduko haigone kudzimwa kazhinji, uye mubato wekushandura unoramba uri mu'OFF';
3. Haina kugurwa zvachose, ichikonzera pfarivari;
4. Nokuti iyo inobvumirwa kushanda ikozvino iduku zvikuru, zviri nyore kukonzera kupisa, kukuvadza kune switch interrupter kana kunyange chimiro deformation.
Imwe kambani yeQueensland yakatengesa madhijiti eDC akanga aongororwa kuti ane ngozi dzingava dzingaita here uye akakonzera moto unosvika makumi manomwe pamagetsi ezuva ari pamatenga evashandisi.Mukuwedzera, kune makumi ezviuru zvevaridzi vedzimba vari pangozi yemoto wemagetsi kunetseka.
Advancetech, inotungamirwa muSunshine Coast, ikambani yakavambwa kwenguva refu ine motto inoti "edza, kuyedza, tenda".Musi waChivabvu 12, 2014, Gweta Guru reQueensland, Jarrod Bleijie akaraira kudzoserwa shure kwechidzitiro chesolar DC 27,600 dzakaunzwa nekutengeswa neAdvancetech.Iyo photovoltaic DC switch yakatumidzwa zita rekuti "Avanco" kana yatengeswa kunze kwenyika.Musi waChivabvu 16, 2014, Advancetech yakapinda mukubhuroka, uye vese vanoisa uye vechipiri vagovani vaifanira kutakura mutengo nenjodzi dzekutsiva zvigadzirwa zvakakanganisika.
Izvi zvinoratidza kuti kiyi haisi iyo yaunotenga asi kuti ndiani waunotenga uye nenjodzi dzayo.Ruzivo rwunoenderana runogona kuwanikwa pa http://www.recalls.gov.au/content/index.phtml/itemId/1059088.
Mufananidzo 1: AVANCO brand photovoltaic DC switch yekurangarira chiziviso
Uye zvakare, mhando dzinoyeukwa muAustralia dzinosanganisira:
Shanduko yeDC yeGWR PTY LTD Trading seUniquip Industries yakayeukwa nekuda kwekupisa nemoto: http://www.recalls.gov.au/content/index.phtml/itemId/1060436
NHP Electrical Engineering Chigadzirwa Pty Ltd's DC switch, chikonzero chekuyeuka ndechekuti kana mubato wachinjirwa kuenda ku'OFF', asi iyo yekubata inogara iri mu'ON', uye switch haigone kudzimwa: http: //www.recalls.gov.au/ content/index.phtml/itemId/1055934
Parizvino, kune akawanda anodaidzwa kuti DC mabreaker pamusika asiri chaiwo DC edunhu mabhureki, asi anovandudzwa kubva ku AC mabreaker.Photovoltaic masisitimu anowanzo ane yakakwira dhizaini voltage uye yazvino.Kana paine chikanganiso chepasi, iyo yakakwira pfupi-yekutenderera ikozvino inodhonza vanobatana pamwe chete, zvichikonzera yakanyanya kupfupi-circuit ikozvino, iyo inogona kunge yakakwira kiloamps (zvichienderana neyakasiyana zvigadzirwa).Kunyanya mu photovoltaic systems, zvakajairika kuva nemafungiro akawanda akafanana emagetsi ezuva kana kuti yakasununguka kupinza kweakawanda solar panels.Nenzira iyi, zvinodikanwa kucheka iyo yakafanana DC yekuisa yeakawanda solar panels kana yakazvimirira DC yekuisa yemazhinji solar panels panguva imwe chete.Iyo arc yekudzima kugona kweDC inochinja mumamiriro ezvinhu aya Izvo zvinodiwa zvichave zvakakwirira, uye kushandiswa kweaya akagadziridzwa DC circuit breakers mu photovoltaic systems ichava nenjodzi huru.
Sarudzo chaiyo yemayero akati wandei eDC switch
Nzira yekusarudza yakakodzera DC switch ye photovoltaic system?Aya mazinga anotevera anogona kushandiswa sereferensi:
1. Edza kusarudza mhando hombe, kunyanya idzo dzakapasa certification yenyika.
Photovoltaic DC circuit breakers inonyanya kuve neEuropean certification IEC 60947-3 (European common standard, inoteverwa nenyika zhinji muAsia-Pacific), UL 508 (American general standard), UL508i (American standard for DC switches for photovoltaic systems), GB14048.3 (domestic general Standard), CAN/CSA-C22.2 (Canadian General Standard), VDE 0660. Parizvino, makuru makuru epasi rose ane zvese zviri pamusoro apa zvitupa, seIMO kuUnited Kingdom uye SANTON kuNetherlands.Mazhinji mabhureki epamba parizvino anongopfuura mwero wepasirese IEC 60947-3.
2. Sarudza DC circuit breaker ine yakanaka arc yekudzima basa.
Iyo arc yekudzima mhedzisiro ndeimwe yeakanyanya kukosha zviratidzo zvekuongorora DC switch.Chaiyo DC yedunhu mabreak ane yakakosha arc yekudzima midziyo, iyo inogona kudzimwa pamutoro.Kazhinji, dhizaini yedhizaini yeiyo chaiyo DC wedunhu breaker yakakosha.Mubato uye kubata hazvina kubatana zvakananga, saka kana switch ikabatidzwa nekudzimwa, iyo yekubata haina kutenderedzwa zvakananga kuti ibvise, asi chitubu chakakosha chinoshandiswa pakubatanidza.Kana mubato unotenderera kana kuenda kune imwe nzvimbo, vese vanobatika vanokonzereswa kuti "vakangoerekana vavhurika", nekudaro vachigadzira nekukurumidza-ku-off chiitiko, zvichiita kuti arc igare ipfupi.Kazhinji, iyo arc ye photovoltaic DC switch yemhando yepasirese yekutanga-mutsara inodzimwa mukati memamilliseconds mashoma.Semuenzaniso, iyo SI system yeIMO inoti iyo arc inodzima mukati me5 milliseconds.Nekudaro, iyo arc yeDC wedunhu breaker yakagadziridzwa neyakajairwa AC wedunhu breaker inogara kweanopfuura zana milliseconds.
3. Kutsungirira high voltage uye ikozvino.
Iyo voltage yea general photovoltaic system inogona kusvika ku1000V (600V muUnited States), uye ikozvino inoda kubviswa zvinoenderana nemhando uye simba reiyo module, uye kana iyo photovoltaic system yakabatana mune yakafanana kana yakawanda yakazvimirira kubatana ( Multi-channel MPPT).Iyo voltage uye ikozvino yeDC switch inotsanangurwa netambo yemagetsi uye parallel ikozvino ye photovoltaic array inoda kubviswa.Tarisa kune chiitiko chinotevera paunosarudza photovoltaic DC circuit breakers:
Voltage = NS x VOC x 1.15 (Equation 1.1)
Yazvino = NP x ISC x 1.25 (Formula 1.2)
Iko NS-huwandu hwemabhatiri mapaneru munhevedzano NP-nhamba yebhatiri mapaketi anoenderana
VOC-bhatiri panhizha rakavhurika redunhu voltage
ISC-pfupi yedunhu ikozvino yebhatiri pani
1.15 uye 1.25 ari empirical coefficients
Kazhinji, maDC anochinja emhando huru anogona kubvisa system DC voltage ye1000V, uye kunyange dhizaini yekubvisa iyo DC inopinza ye1500V.Mabhuranzi makuru eDC switch anowanzo ane yakakwirira-simba akateedzana.Semuenzaniso, ABB's photovoltaic DC switch ine mazana emaampere akatevedzana zvigadzirwa.IMO inotarisa paDC switch kune yakagoverwa photovoltaic masisitimu uye inogona kupa 50A, 1500V DC switch.Nekudaro, vamwe vagadziri vadiki vanongopa 16A, 25A DC switch, uye tekinoroji yayo uye tekinoroji yakaoma kugadzira yakakwirira-simba photovoltaic DC switch.
4. Chigadzirwa chemuenzaniso chakakwana.
Kazhinji, mhando hombe dzeDC switch dzine mhando dzakasiyana-siyana dzinogona kusangana nezvinodiwa zvezviitiko zvakasiyana.Kune ekunze, akavakirwa-mukati, materminal anogona kusangana akawanda MPPT mapimendi munhevedzano uye anoenderana, ane uye asina makiyi, uye zvakanyanya kugutsa.Yakasiyana-siyana yekumisikidza Nzira dzakadai sekumisikidzwa kwepasi (yakaiswa mubhokisi rekubatanidza uye kabati yekugovera magetsi), imwe-gomba uye kuisirwa kwepaneru, nezvimwe.
5. Nyaya yacho haina moto uye ine chiyero chekudzivirira.
Kazhinji, iyo imba, zvinhu zvemuviri, kana mubato weDC switch ese epurasitiki, ane ayo anodzoreredza murazvo maitiro uye anowanzo kusangana neUL94 standard.Iyo casing kana muviri weakanaka-mhando DC switch inogona kusangana neUL 94V0 yakajairwa, uye mubato unowanzosangana neUL94 V-2 yakajairwa.
Chechipiri, kune yakavakirwa-mukati DC switch mukati meiyo inverter, kana paine chekunze chibatiso chinogona kuchinjika, nhanho yekudzivirira yekuchinja inowanzodiwa kuti ikwane kuzadzisa zvinodiwa zvekuyedzwa zveyero yekudzivirira yemuchina wese.Parizvino, iyo inonyanya kushandiswa tambo inverters muindasitiri (kazhinji isingasviki 30kW chiyero chesimba) inowanzosangana neiyo IP65 yekudzivirira yemuchina wese, iyo inoda yakavakirwa-mukati DC switch uye kusimba kwepaneru kana muchina waiswa. .Kune ekunze DC switch, kana akaiswa kunze, anofanirwa kusangana neinenge IP65 level yekudzivirira.
Mufananidzo 2: Yekunze DC switch yekugadzira uye kutyora tambo dzakawanda dzemabhatiri mapaneru
Mufananidzo 3: Yekunze DC switch inobatidza nekudzima tambo yebhatiri mapaneru
Nguva yekutumira: Oct-17-2021
+86-577-62860666
malujiao industrizal zone,beibaixiang town,yueqing,zhejiang,china 325603
