Nyob rau hauv xyoo tas los no, technology ntawm lubphotovoltaic kev lag luamtau txhim kho sai thiab nrawm dua.Lub zog ntawm ib qho modules tau dhau los ua qhov loj thiab loj dua, thiab tam sim no ntawm cov hlua kuj tau loj dua thiab loj dua.Tam sim no ntawm high-power modules tau mus txog ntau tshaj 17A.Nyob rau hauv cov nqe lus ntawm kev tsim qauv, kev siv cov khoom siv hluav taws xob siab thiab qhov chaw tshwj xeeb tsim nyog tuaj yeem txo tus nqi pib nqis peev thiab kilowatt-teev tus nqi ntawm qhov system.Tus nqi ntawm AC thiab DC cables nyob rau hauv lub system tsis yog tsawg.Yuav tsim thiab xaiv yuav ua li cas thiaj li txo tau cov nqi?
1. Kev xaiv ntawm DC cables
DC cable yog ntsia sab nraum zoov.Nws yog feem ntau pom zoo kom xaiv tshwj xeeb photovoltaic cables uas tau hla kev sib txuas los ntawm hluav taws xob.Tom qab high-zog electron beam irradiation, cov qauv molecular ntawm cable rwb thaiv tsev txheej cov ntaub ntawv hloov los ntawm linear mus rau peb-dimensional network molecular qauv, thiab cov kub kuj nce los ntawm tsis-cross-linked 70 ° C mus rau 90 ° C, 105 °. C, 125 ° C, 135 ° C, txawm tias mus txog 150 ° C, lub peev xwm nqa tam sim no yog 15-50% siab dua li ntawm cov cables ntawm tib yam tshwj xeeb.Nws tuaj yeem tiv taus qhov kub thiab txias hloov thiab kev yaig tshuaj lom neeg thiab tuaj yeem siv sab nraum zoov rau ntau tshaj 25 xyoo.Thaum xaiv DC cables, xaiv cov khoom lag luam los ntawm cov chaw tsim khoom niaj hnub nrog cov ntawv pov thawj cuam tshuam kom ntseeg tau tias siv sab nraum zoov mus ntev.
Tam sim no, feem ntau sivphotovoltaic DC cableyog PV1-F1 * 4 4 square meter cable.Txawm li cas los xij, nrog qhov nce ntawm qhov tam sim no ntawm photovoltaic modules thiab qhov nce hauv lub zog ntawm ib qho inverter, qhov ntev ntawm DC cable kuj nce ntxiv.6 square meters Kev siv DC cables kuj nce ntxiv.
Raws li cov lus qhia tshwj xeeb, nws feem ntau pom zoo tias qhov poob ntawm photovoltaic DC yuav tsum tsis pub tshaj 2%.Peb siv tus qauv no los tsim kev xaiv DC cables.Cov kab tsis kam ntawm PV1-F1 * 4mm² DC cable yog 4.6mΩ / meter, thiab kab tsis kam ntawm PV6mm² DC cable yog 3.1 mΩ / meter, piv txwv tias DC module ua haujlwm voltage yog 600V, 2% voltage poob poob yog 12V, piv txwv li. hais tias lub module tam sim no yog 13A, siv 4mm² DC cable, qhov kev ncua deb ntawm qhov kawg kawg ntawm lub module thiab lub inverter yog pom zoo kom tsis txhob tshaj 120 meters (ib txoj hlua, (tsis suav nrog zoo thiab tsis zoo ncej), yog hais tias qhov kev ncua deb yog ntau tshaj qhov no. nyob deb, nws raug nquahu kom xaiv 6mm² DC cable, tab sis nws raug pom zoo tias qhov kev ncua deb ntawm qhov kawg ntawm cov khoom siv thiab cov inverter yuav tsum tsis pub tshaj 170 meters.
2. Photovoltaic cable poob xam
Yuav kom txo tau cov nqi system, cov khoom siv thiabinverters ntawm photovoltaic fais fab chaw nres tshebTsis tshua muaj teeb tsa hauv qhov sib piv 1: 1.Hloov chaw, qee qhov kev teeb tsa dhau los yog tsim los ntawm cov teeb pom kev zoo, qhov project xav tau, thiab lwm yam. Piv txwv li, rau 110KW module thiab 100KW inverter, xam raws li 1.1 npaug ntawm AC sab overmatching ntawm inverter, qhov siab tshaj plaws AC tso zis tam sim no yog kwv yees li. 158 A.AC cable tuaj yeem xaiv raws li qhov siab tshaj plaws tso zis tam sim no ntawm lubinverter.Vim tias tsis muaj teeb meem ntau npaum li cas tau teeb tsa, AC input tam sim no ntawm lub inverter yuav tsis dhau qhov siab tshaj plaws tso zis tam sim no ntawm inverter.
3. Inverter AC tso zis tsis
Feem ntau siv AC tooj liab cables rau photovoltaic systems muaj xws li BVR thiab YJV.BVR txhais tau tias tooj liab tub ntxhais PVC insulated saj zawg zog hlau, YJV cross-linked polyethylene insulated fais fab cable.Thaum xaiv, xyuam xim rau qib voltage thiab kub theem ntawm cable., xaiv cov nplaim-retardant hom, cable specification yog qhia los ntawm tus naj npawb ntawm cov cores, nominal cross-section thiab voltage theem: ib leeg-core ceg cable specification sawv cev, 1 * nominal cross-section, xws li: 1 * 25mm 0.6 / 1kV, txhais tau tias 25 square meter ntawm cables.Multi-core twisted ceg cable specification sawv cev, tus naj npawb ntawm cov cables nyob rau hauv tib lub Circuit Court * nominal cross-section, xws li: 3 * 50 + 2 * 25mm 0.6 / 1KV, uas txhais tau hais tias peb 50 square nyob nyob ntawm tej, ib tug 25 square neutral hlau thiab A 25 square av xaim.
Post lub sij hawm: Mar-20-2024