Thaum xaiv cov hnub ci uas tsim nyog los yog hnub ci rau cov ntawv thov kom xav txog yog cov ntsuas hluav taws xob ntawm txoj hlua. Qhov ntsuas voltage hais txog qhov hluav taws xob siab kawg uas tuaj yeem nyab xeeb yam tsis muaj kev pheej hmoo rau cov rwb thaiv tsev lossis tus saib xyuas. Nyob rau hauv cov ntsiab lus ntawm hnub ci cables, no cov lus qhia kom ntseeg tau los ntawm cov hluav taws xob muaj peev xwm los ntawm cov khoom siv hluav taws xob thiab cov peev txheej rau kev ua haujlwm qub.
Ntawm cov sib txawv ntawm lub hnub ci cab, lub pv {{0} f Cable yog siv dav yog nws cov kev ua tau zoo thiab kev ntseeg tau hauv lub hnub ci fais fab. To taub cov ntsuas hluav taws xob ntawm lub PV {{1} f hlua yog qhov tseem ceeb rau kev ua kom muaj qhov ntsuas hluav taws xob ntawm koj lub hnub ci.
Kab lus no yuav tshawb txog qhov ntsuas hluav taws xob ntawm lub PV {{m sib piv rau lwm lub hnub ci, thiab yuav ua li cas xaiv cov hnub ci kho raws li qhov ntsuas hluav taws xob.
1. Txheej txheem cej luam ntawmPV 1- f Cable
Ua ntej tso rau hauv cov ntsiab lus ntawm cov ntsuas hluav taws xob, cia peb nkag siab qhov pv {{mab teb yog thiab nws siv rau hnub ci nruab.
Lub PV 1- f Cable yog lub hnub ci tshwj xeeb tsim rau cov inverters rau cov inverters, roj teeb khoom ntawm lub hnub ci teeb tsa. Nws yog npaj los nqa ncaj qha tam sim no (DC) hluav taws xob, tsim los ntawm hnub ci ntsa iab, thiab xa nws kom muaj kev nyab xeeb kom nyab xeeb rau lwm cov system. PV {{{{{{} f cleshent siv tau nyob rau hauv ob qho chaw nyob vim lawv cov khoom siv hluav taws xob thiab cov kws kho hluav taws xob, ua rau lawv ntseeg tau thiab ruaj khov.
Qee qhov tseem ceeb ntawm PV 1- fry suav nrog:
Kev ntsuas ntsuas: Cov ntsuas hluav taws xob ntawm PV {{m cab yog feem ntau yog 1, {} V DC,} V DC,} V DC,} Cov Ntawv Thov Kev Lag Luam Hnub Ci.
Qhov ntsuas kub ntau: PV {{{{1- f cables tuaj yeem ua haujlwm hauv qhov kub thiab txias rau hauv kev ua tau zoo hauv ntau qhov chaw.
UV Kuj: Cov Cables no tau tsim los tiv thaiv kev raug rau ulteriolet (UV) hluav taws xob, kom lawv tuaj yeem siv rau sab nraum zoov ib puag ncig tsis muaj kev cuam tshuam tseem ceeb.
Yooj yooj: Cov Cables yog hloov tau yooj yim, uas yog qhov tseem ceeb rau kev teeb tsa yooj yim hauv cov chaw kaw cov chaw lossis cov qauv txheej txheem.
2. Dab tsi yog cov ntsuas hluav taws xob ntawm PV 1- fable?
Cov ntsuas hluav taws xob ntawm lub PV 1- fable yog feem ntau 1, {l} v dc. Qhov no txhais tau tias lub cable yog tsim los kom muaj kev nyab xeeb ncaj qha ntawm voltages tam sim no nyob rau ntawm rwb thaiv tsev, lossis kev sib cav sib ceg. Nws yog ib qho tseem ceeb kom nkag siab tias cov ntsuas hluav taws xob yog qhov ntsuas siab tshaj plaws uas lub cable tuaj yeem tswj hwm cov kev ua haujlwm ib txwm muaj.
Ntawm no yog cov lus qhia ntxaws ntxiv ntawm 1, 000 V DC Kev Ntsuam Xyuas:
2.1 Vim li cas thiaj yog cov ntsuas hluav taws xob tseem ceeb?
Cov ntsuas hluav taws xob kom ntseeg tau tias lub cable tuaj yeem ua rau cov hluav taws xob muaj peev xwm tsim los ntawm cov khoom siv hluav taws xob tsis muaj kev pheej hmoo los ntawm cov hluav taws xob hluav taws xob, kub ntxhov, lossis hluav taws kub. Txij li thaum hnub ci ntsa iab feem ntau tsim lub DC voltage nyob rau hauv thaj tsam ntawm 30 v rau lub zog cia lossis hloov dua siab tshiab rau lwm tus inverter. Hauv cov teeb tsa no, qhov hluav taws xob tuaj yeem ncav cuag theem qib li 1, {V DC, nyob ntawm kev teeb tsa ntawm lub hnub ci array.
Xaiv lub hnub ci tsim nyog nrog txoj kev yog qhov tseem ceeb kom ntseeg tau tias lub cable yuav tsis poob raws li cov kev mob voltage no. Yog tias ib qho cable siv nyob rau hauv lub system uas qhov hluav taws xob tau tshaj nws cov hluav taws xob hluav taws xob, muaj kev pheej hmoo ntawm hluav taws kub, lossis luv luv ntawm cov kab ke tsis ua haujlwm lossis muaj kev nyab xeeb kev nyab xeeb.
2.2 Yuav muaj dab tsi tshwm sim yog tias tus voltage ntau tshaj qhov ntsuas hluav taws xob?
Yog hais tias tus voltage tshaj qhov ntsuas voltage ntawm lub PV 1- f cable, ob peb cov teeb meem yuav tshwm sim:
Rwb thaiv tsev kev puas ntsoog: Cov ntaub ntawv rwb thaiv tsev, uas ib txwm muaj barnically polyethylene (xlpe) lossis thermoplastic elastomers (tpe), tej zaum yuav tawg qis nyob rau hauv ntau heev voltage. Qhov no tuaj yeem ua rau muaj kev voj voog luv luv, arcing, lossis txawm tias hluav taws hluav taws.
Tus neeg coj kev puas tsuaj: Lub cable tus neeg coj tus cwj pwm, feem ntau yog ua los ntawm tooj liab, tej zaum yuav overheat lossis degrade yog tias lawv raug rau siab dua hluav taws xob ntau dua li lawv tsim rau. Qhov no tuaj yeem ua rau muaj kev poob qis hauv kev ua tau lossis ua tiav tsis tiav ntawm txoj hlua cable.
Txo lub neej: Xwm yeem ua haujlwm ntawm cov cable saum toj nws cov nyiaj khom nqi yuav luv nws lifes, xav tau ntau yam hloov pauv thiab kho tus nqi kho dua tshiab.
Yuav kom tsis txhob muaj cov teeb meem no, nws yog qhov tseem ceeb los xaiv lub hnub ci ci uas ntais ntawv cov kev xav tau ntawm lub hnub ci.
3. Sib piv nrog lwm tusHnub ci cables
Nws yog ib qho tseem ceeb kom nkag siab tias pv 1- f Cable sib piv rau lwm cov hluav taws xob hluav taws xob, tshwj xeeb tshaj yog thaum xav txog cov hluav taws xob siab. Ntxiv nrog rau lub PV {2} f cable, muaj lwm cov kev siv hnub ci feem ntau siv xws li H1Z2Z {5}} k cable. Cia muab cov ntsuas hluav taws xob sib piv ntawm lub PV 1- fable nrog cov cable no:
3.1 H1Z2Z 2- kable
H1Z2Z {{2- k cable yog lwm hom stolar hlau uas feem ntau siv hauv photovoltaic. Nws cov ntsuas hluav taws xob feem ntau yog 1,500 v dc, uas yog siab dua lub PV 1-} v dc kev ntaus nqi. Qhov no ua rau H1z2Z 2- k cable ntau haum rau high-volar lub nruab hnub ci lossis txhim tsa uas yuav tsum muaj hluav taws xob hluav taws xob.
Qhov zoo ntawm H1Z2Z {2- k cables tshaj PV 1- f cables muaj xws li:
Ntau dua rated voltage: Nrog ib 1,500 v DC kev ntsuam xyuas, H1Z2Z {4 4} Kuv yuav siv tau cov hnub ci loj dua, kev lag luam hnub ci nruab hnub uas xav tau.
Txhim Kho Durability: H1z2Z {{{{{2} K Cables feem ntau siv nyob rau hauv kev xav tau ib puag ncig thiab tuaj yeem ua rau ntau dua cov xwm txheej nyuaj, ua rau lawv cov khoom sib tw hnub ci.
3.2 PV2 Cable
Lub PV2 cable yog lwm lub hnub ci ntsa iab uas feem ntau siv hauv photovoltaic, thiab nws cov ntsuas hluav taws xob feem ntau yog li 1, {v dc rau 1,500 v dc. Cov cables no tau tsim los rau cov khoom siab dua muaj peev xwm, zoo ib yam li cov yam ntxwv yooj yim, tab sis lawv tau ua kom muaj kev sib txawv me ntsis, tab sis siv UV kis tau yooj yim.
3.3 Qhov sib txawv ntawm cov hluav taws xob ntsuas thiab cov ntawv thov
Lub PV 1- fable, nrog 1, {} V DC Kev Ntsuas thiab Me me rau Nruab Nrab Ua Lag Luam Hnub Ci. Nws yog qhov txaus rau lub hnub ci tsim nyog uas ua haujlwm ntawm 600 v rau 1, {} v dc.
H1Z2Z {{2- K thiab PV2 Cables, yog qhov tsim hluav taws xob ntau dua, qhov chaw ntau dua cov khoom siv hluav taws xob loj dua ntawm lub peev xwm.
4. Xaiv Qhov Kev Ntsuas Cov Hluav Taws Xob Zoo rau Hnub Ci Kev Sib Tw
Thaum xaiv lub hnub ci tsim nyog rau lub hnub ci zog, nws yog qhov tseem ceeb kom phim cov rated voltage ntawm cov xaim hluav taws xob uas yuav tsum muaj ntawm cov kab ke. Nov yog qee cov lus qhia los pab hauv kev xaiv txoj cai cable:
4.1 Cov Nruab Nrab Hnub Ci
Txog qhov chaw nyob sab hnub ci, qhov volarage feem ntau ntawm 600 v thiab 1, {v ... 3}} f Cable feem ntau yog qhov kev xaiv tsim nyog tshaj plaws. Nws 1, 000 v dc rated voltage muab lub peev xwm txaus los lis lub peev xwm txaus los lis lub peev xwm tsim tawm los ntawm feem ntau lub hnub ci ntsa iab feem ntau.
4.2 Kev Lag Luam thiab Kev Lag Luam Hnub Ci
Rau kev ua lag luam loj dua lossis cov hnub ci hnub ci, tshwj xeeb tshaj yog cov uas tsim cov ntau dua voltages (mus txog 1,500 v dc), H1z2z {late lossis PV2 cables haum. Cov khoom lag luam no tau tsim los daws cov qib voltage ntau dua thiab feem ntau siv hauv kev xav tau ntau dua, loj teeb tsa.
4.3 Cov kev txiav txim siab tshwj xeeb rau cov hluav taws xob hluav taws xob
Nws tseem yog qhov tseem ceeb los txiav txim siab txog kev nthuav dav hluav taws xob uas yuav tshwm sim dhau ntawm cov xwm txheej ntev ntawm hnub ci ntsa iab thiab cov inverter. Hauv cov xwm txheej zoo li no, cov cable nrog kev ntsuas hluav taws xob ntau dua