Raws li cov txiaj ntsig photovoltaic, kev ua haujlwm ntawm lub hnub ci hluav taws xob yog los hloov lub hnub ci hluav taws xob rau lub zog hluav taws xob.Qhov no txhais tau tias kev nruab photovoltaic (PV) raug teeb tsa sab nraum zoov thiab raug rau cov kev pheej hmoo ua los ntawm xob laim ntaus. Cov hluav taws xob laim tawm ua rau muaj qhov hloov pauv loj uas muaj kev puas tsuaj rau lub PV modules, kev hloov khoom siv, cov khoom siv tshuaj xyuas, thiab lwm yam hluav taws xob uas muaj lub kaw lus PV.
Nyob rau hauv qhov xwm txheej uas cov hluav taws xob ua hluav taws xob PV ua rau nws tus kheej noj, txhais tau hais tias PV installation yog lub cev txuas nrog lub tsev txuas hluav taws xob kev teeb tsa, cov surges no tuaj yeem ua kev puas tsuaj tsis yog PV cov khoom siv, tab sis kuj muaj cov khoom siv rhiab hauv tsev.
Tso cov txheej txheem tiv thaiv thiab tiv thaiv kab mob rau hauv qhov chaw tuaj yeem ua kom cov khoom siv hluav taws xob muaj kev nyab xeeb.
Ua kom muaj kev sib luag ntawm txhua qhov chaw muaj kev coj ua
Koj thawj qhov kev tiv thaiv zoo yuav tsum yog kom muaj kev sib luag ntawm txhua qhov kev coj ua hauv kev teeb tsa hluav taws xob suav nrog lub kaw lus PV. Qhov laj thawj yog los txuas tag nrho cov neeg ua yeeb yam hauv av thiab cov hlau ua kom muaj peev xwm sib luag ntawm txhua qhov chaw. Qhov ntsuas no suav nrog cov kab hluav taws xob, suav nrog DC sab ntawm photovoltaic installation, ntxiv rau cov xov tooj hauv cov kab.
Tiv thaiv kev hloov pauv overvoltages nrog kev tiv thaiv kom zoo cov khoom siv
Hauv lub tsev uas tsis muaj hluav taws xob tiv thaiv sab nrauv, cov khoom siv tiv thaiv kev tiv thaiv zoo (SPDs) yuav tsum muaj nyob hauv peb qho chaw:
• Hauv DC sab ntawm lub PV installation
• Nyob rau AC sab ntawm PV installation
• Ntawm cov xov xov hluav taws xob
Txawm hais tias muaj kev tiv thaiv xob laim hluav taws xob, SPDs kuj yuav tsum muaj tib yam nkaus li tshwj tsis yog muaj kev pheej hmoo tshawb pom tias qhov no tsis tsim nyog.
Kev tiv thaiv ntawm DC Sab
SPD rau ntawm DC sab yuav tsum tau tsim tshwj xeeb rau kev txhim kho PV vim tias kev teeb tsa hluav taws xob tshwj xeeb ntawm kev teeb tsa li ntawd. Feem ntau, International Electrotechnical Commission pom zoo hauv IEC 60364-7-712.534, nws tus qauv rau hnub ci PV fais fab kev ua haujlwm, tias cov no yuav tsum yog chav nyob 2 khoom siv.
Cov SPD nyob rau sab DC yuav tsum muab ntsia kom ze li sai tau rau qhov ntsuas. Yog tias qhov kev ncua deb ntawm SPD thiab PV modules loj dua 10m, SPD ntxiv yuav tsum muab ntsia kom ze rau cov qauv. Raws li pom hauv daim duab hauv qab no, SPD 2 yog lub cuab yeej xav tau ntawm DC sab. SPD 1 yog cov cuab yeej uas yuav tsum tau ntxiv yog qhov kev ncua deb ntawm lub tshuab hluav taws xob PV thiab SPD siab tshaj 10m.
Cov SPD yuav tsum muab nruab rau hauv cov hluav taws xob sab hauv lub tsev. Yog hais tias lub vaj huam sib luag tawm sab nraud, nws yuav tsum muaj dej thaiv. SiviPRD-DCwithdrawable surge tiv thaiv cov cuab yeej ua rau muaj kev hloov sai sai ntawm cov pob txha taub thiab cov neeg ua haujlwm ceeb toom los ntawm kev qhia txog cov ntaub ntawv, xws li los ntawm xa cov lus "cartridge rau hloov."
Kev tiv thaiv ntawm AC ib sab
Cov tseev kom muaj rau kev tiv thaiv yoov tshaj lij ntawm AC sab yog txhais los ntawm IEC 60364-5-53and IEC 60364-4-44-443.
Cov cuab yeej tiv thaiv kev tiv thaiv zoo ntawm AC sab tuaj yeem yog chav kawm 1 lossis chav kawm 2 nyob ntawm seb puas muaj lub ntsej muag xob laim ntawm lub tsev lossis qhov chaw nyob ze, thiab tus xob laim tus nqi.
SPD yuav tsum muab nruab rau ntawm LV switchboard uas lub kaw lus PV txuas, uas feem ntau yog lub vaj huam sib luag tseem ceeb. Yog tias qhov cable ntev ntawm qhov tseem ceeb LV switchboard thiab lub inverter yog loj dua 10m, yuav tsum muaj SPD txuas ntxiv rau ntawm AC tso tawm ntawm inverter.
Raws li qhia hauv daim duab, SPD 4 yog qhov yuav tsum tau ntaus ntawm AC sab. SPD 3 yog cov cuab yeej uas yuav tsum tau ntxiv yog qhov kev ncua deb ntawm qhov tseem ceeb LV switchboard thiab lub inverter tshaj 10m.
Tiv thaiv cov kab txuas xov tooj
Cov khoom siv tiv thaiv yuav tsum tsis yog ntawm cov khoom siv fais fab nkaus xwb. Lawv kev txhim kho tau pom zoo xws li cov kab txuas xov hluav taws xob, xws li RS485 thiab ethernet. Qhov yuav tsum muaj rau kev xaiv ntawm cov twj tiv thaiv kom tiv thaiv txuas nrog kev sib txuas lus hauv xov tooj thiab kev sib txuas lus yog them rau IEC 61643-22.Schneider Hluav Taws Xob muaj ntau yam ntawmsurge tiv thaiv pab kiag li lawmrau cov tes hauj lwm digital.
Yuav tsim daim phiaj tiv thaiv kab mob li cas hauv nruab nrog hnub ci noj tus kheej
Kev sib koom ua ke ntawm photovoltaic ntau lawm rau hauv kev teeb tsa hluav taws xob yuav tsum muaj kev ntsuas kev nyab xeeb tshwj xeeb. Saib qhov vis dis aus luv luv "Yuav ua li cas tiv thaiv kev teeb tsa hluav taws xob nrog kev tsim khoom photovoltaic" kom paub ntau ntxiv
Poob-ntawm-mains tiv thaiv
Cov kev cai rau overcurrent tiv thaiv kev tso kawm ntawm AC sab
Kev rho tawm thiab kev hloov pauv ntawm cov khoom hluav taws xob photovoltaic
Koj tseem tuaj yeem sab laj theSurge Protection rau Photovoltaic Applicationsweb nplooj ntawm Schneider Electric Installation Wiki kom tau txais cov ntaub ntawv ntau ntxiv txog kev tiv thaiv kev tiv thaiv overvoltage.
