Yuav Ua Li Cas Hnub Ci Vaj Huam Sib Luag Cables thiab Cov Txuas Txuas Txuas rau PV Module?

Feem ntau lub zog hluav taws xob hnub ci vaj huam sib luag yog tsim los ntawm PV cables nrog MC4 connectors ntawm qhov kawg.Ntau xyoo dhau los, hnub ci PV modules muaj lub thawv sib txuas rau sab nraub qaum thiab cov neeg tsim khoom xav tau los txuas cov cables rau qhov zoo thiab qhov tsis zoo.Txoj kev no tseem siv tau, tab sis nws maj mam raug phased tawm.Niaj hnub no cov hnub ci modules nyiam sivMC4 plugsvim lawv ua rau kev xaim PV array yooj yim dua thiab sai dua.MC4 plugs muaj nyob rau hauv txiv neej thiab poj niam style rau snapping ua ke.Lawv ua tau raws li cov cai ntawm National Electrical Code, yog UL teev, thiab yog cov kev sib txuas uas nyiam tshaj plaws rau cov kws tshuaj xyuas hluav taws xob.Vim lub kaw lus ntawm MC4 connectors, lawv tsis tuaj yeem rub tawm, ua rau lawv zoo tagnrho rau qhov chaw sab nraum zoov.Cov connectors tuaj yeem raug txiav nrog ib qho tshwj xeebMC4 disconnect cuab tam.

Yuav Ua Li Cas Txuas MC4 Hnub Ci Vaj Huam Sib Luag hauv Series?

Yog tias koj muaj ob lossis ntau lub hnub ci vaj huam sib luag los txuas rau hauv series, siv MC4 PV connector ua rau series yooj yim.Ua tibzoo saib thawj PV module hauv daim duab hauv qab no thiab koj yuav pom tias nws muaj ob lub hnub ci PV cables txuas ntawm lub thawv sib txuas.Ib qho PV cable yog DC zoo (+) thiab lwm qhov yog DC tsis zoo (-).Feem ntau, MC4 poj niam connector yog txuam nrog rau qhov zoo cable thiab tus txiv neej connector yog txuam nrog rau qhov tsis zoo cable.Tab sis qhov no yuav tsis yog ib txwm muaj, yog li nws yog qhov zoo tshaj plaws los xyuas cov cim ntawm PV hlws ris lub thawv lossis siv lub tshuab hluav taws xob digital los ntsuas qhov polarity.Kev sib txuas ua ke yog thaum cov hlau lead zoo ntawm ib lub hnub ci vaj huam sib luag txuas nrog cov hlau lead tsis zoo ntawm lwm lub hnub ci vaj huam sib luag, tus txiv neej MC4 connector yuav snap ncaj qha rau hauv poj niam connector.Daim duab hauv qab no qhia tau hais tias yuav ua li cas MC4 modules txuas nrog hauv series:

Raws li tau pom, ob lub hnub ci vaj huam sib luag tau txuas nrog hauv cov koob los ntawm ob txoj kev coj, uas ua rau kom muaj qhov hluav taws xob ntau ntxiv.Piv txwv li, yog tias koj lub PV modules raug ntsuas ntawm 18 volts ntawm lub zog siab tshaj plaws (Vmp), ces ob ntawm lawv txuas nrog hauv koob yuav yog 36 Vmp.Yog tias koj txuas peb modules hauv series, tag nrho Vmp yuav yog 54 volts.Thaum lub voj voog txuas nrog hauv series, lub zog siab tshaj plaws tam sim no (Imp) yuav nyob twj ywm tib yam.

Yuav Ua Li Cas Txuas MC4 Hnub Ci Vaj Huam Sib Luag hauv Parallel?

Cov kab hluav taws xob sib txuas xav tau txuas cov xov hlau zoo ua ke thiab cov xov hlau tsis zoo ua ke.Txoj kev no yuav ua rau kom qhov tam sim no ntawm lub zog siab tshaj plaws (Imp) thaum ua kom qhov hluav taws xob tsis tu ncua.Piv txwv li, cia peb hais tias koj lub hnub ci vaj huam sib luag tau ntsuas rau 8 amps Imp, thiab 18 volts Vmp.Yog tias ob qho ntawm lawv txuas nrog rau qhov sib npaug, tag nrho cov amperage yuav yog 16 amps Imp thiab qhov voltage yuav nyob twj ywm ntawm 18 volts Vmp.Thaum txuas ob lossis ntau lub hnub ci vaj huam sib luag nyob rau tib lub sijhawm, koj yuav xav tau qee yam khoom siv ntxiv.Yog tias koj tsuas yog siv ob lub hnub ci vaj huam sib luag, txoj kev yooj yim tshaj plaws yog siv lubMC4 ceg connector.Pom tseeb, koj tsis tuaj yeem txuas ob tus txiv neej txuas lossis ob tus poj niam txuas ua ke, yog li peb yuav ua qhov ntawd nrog PV ceg txuas.Muaj ob ceg sib txawv connectors.Ib hom txais ob MC4 txiv neej connectors nyob rau sab input thiab muaj ib tug MC4 txiv neej connector rau cov zis.Lwm hom txais ob MC4 poj niam connectors thiab muaj ib tug MC4 poj niam connector rau cov zis.Qhov tseem ceeb, koj tau txo tus naj npawb ntawm cov cables los ntawm ob qhov zoo thiab ob qhov tsis zoo rau ib qho zoo thiab ib qho tsis zoo.Raws li daim duab qhia hauv qab no:

Yog tias koj sib piv ntau dua ob lub PV modules lossis cov hlua sib txuas ntawm cov qauv, koj xav tau lub thawv PV sib txuas.Lub thawv sib txuas muaj qhov ua haujlwm zoo ib yam li lub hnub ci ceg txuas.Hnub ci ceg txuas tsuas yog tsim nyog rau kev txuas ob lub hnub ci vaj huam sib luag nyob rau hauv parallel.Tag nrho cov hnub ci vaj huam sib luag uas tuaj yeem ua ke yuav nyob ntawm qhov ntsuas hluav taws xob thiab lub cev qhov ntev ntawm lub thawv sib txuas.Txawm hais tias koj tab tom txuas koj lub hnub ci vaj huam sib luag nrog cov ceg txuas lossis cov thawv sib txuas, koj yuav tsum paub xaiv thiab siv MC4 txuas ntxiv cables li cas.

Yuav Siv MC4 Solar Extension Cable li cas?

    MC4 hnub ci extension cableszoo ib yam li lub tswv yim rau lub hwj chim extension cables.Lub hnub ci txuas hluav taws xob yog tib yam li lub zog txuas hluav taws xob, nrog rau txiv neej kawg ntawm ib kawg thiab tus poj niam kawg ntawm lwm qhov kawg.Lawv tuaj nyob rau hauv ntau qhov sib txawv, los ntawm 8 ko taw mus rau 100 ko taw.Tom qab txuas ob lub hnub ci vaj huam sib luag hauv series, koj yuav tsum tau siv lub hnub ci txuas ntxiv kom xa hluav taws xob mus rau qhov chaw cov khoom siv hluav taws xob nyob (feem ntau yog cov hluav taws xob hluav taws xob thiab cov hluav taws xob hluav taws xob).Lub tshuab hluav taws xob photovoltaic uas siv ob lub hnub ci vaj huam sib luag feem ntau siv hauv RVs thiab cov nkoj, yog li cov hnub ci txuas ntxiv tuaj yeem siv tau raws li tag nrho cov kev ncua deb.

Thaum koj siv lub hnub ci vaj huam sib luag rau ntawm lub ru tsev, qhov kev ncua deb ntawm lub cable yuav tsum tau mus yog feem ntau ntev heev uas siv lub hnub ci vaj huam sib luag txuas ntxiv cable tsis siv tau lawm.Hauv cov xwm txheej no, cov kab txuas txuas ntxiv yog siv los txuas cov hnub ci vaj huam sib luag rau lub thawv sib txuas.Qhov no tso cai rau koj siv cov kab hluav taws xob tsawg dua hauv cov kav dej hluav taws xob kom npog ntau qhov kev ncua deb ntawm tus nqi qis dua MC4 cables.

Xav tias tag nrho cov cable ntev yuav tsum tau los ntawm ob lub hnub ci vaj huam sib luag rau koj cov khoom siv hluav taws xob yog 20 feet.Txhua yam koj xav tau yog ib tug extension qaum.Peb muab 50-ko taw hnub ci txuas ntxiv qaum uas yog qhov zoo tshaj plaws rau qhov xwm txheej no.Ob lub hnub ci vaj huam sib luag koj tau txuas ua ke muaj cov hlau lead zoo nrog MC4 txiv neej connector thiab cov hlau lead tsis zoo nrog MC4 poj niam connector.Txhawm rau ncav cuag koj lub cuab yeej hauv 20 ko taw, koj yuav xav tau ob lub 20-ko taw PV cables, ib tug nrog txiv neej thiab ib tug nrog poj niam.Qhov no yog ua tiav los ntawm kev txiav 50-ko taw hnub ci txuas ntxiv rau hauv ib nrab.Qhov no yuav muab rau koj 25ft lead nrog ib tug txiv neej MC4 connector thiab ib tug 25ft lead nrog ib tug poj niam MC4 connector.Qhov no tso cai rau koj los ntsaws rau hauv ob qho tib si ntawm lub hnub ci vaj huam sib luag thiab muab cov cable txaus rau koj mus rau koj qhov chaw.Qee zaum txiav cov kab hauv ib nrab tsis yog qhov kev daws teeb meem zoo tshaj plaws.Nyob ntawm qhov chaw ntawm lub thawv PV sib txuas, qhov kev ncua deb ntawm ib sab ntawm PV vaj huam sib luag txoj hlua mus rau lub thawv sib txuas yuav ntau dua qhov kev ncua deb ntawm lwm sab ntawm PV vaj huam sib luag hlua rau lub thawv sib txuas.Nyob rau hauv rooj plaub no, koj yuav tsum tau txiav PV extension cable ntawm qhov chaw uas tso cai rau ob qhov kawg txiav mus txog rau lub thawv sib txuas, nrog rau chav me me rau slack.Raws li qhia hauv qab daim duab:

Rau cov tshuab siv PV cov thawv sib txuas, koj tsuas yog xaiv qhov ntev uas ntev txaus los txiav rau hauv lub thawv sib txuas thaum txiav.Tom qab ntawd koj tuaj yeem rub lub rwb thaiv tsev los ntawm qhov txiav xaus thiab txiav lawv mus rau lub busbar lossis Circuit Court breaker.