Nrog rau kev txhim kho sai ntawm lub hnub ci thev naus laus zis, photovoltaic lub zog tau dhau los ua ib qho ntawm cov kev daws teeb meem ntsuab ntsuab hauv ntiaj teb. Cov tshuab photovoltaic ua lub luag haujlwm tseem ceeb, txawm hais tias nyob rau hauv lub zos ru tsev, chaw ua si, lossis loj- nplai hnub ci fais fab nroj tsuag. Nyob rau tib lub sijhawm, cov teeb meem kev nyab xeeb ntawm cov tshuab photovoltaic yog maj mam txais kev mloog zoo. DC ARC, raws li qhov tshwm sim hluav taws xob uas yuav cuam tshuam rau qhov ruaj ntseg uas yuav cuam tshuam rau qhov ruaj khov ntawm photovoltaic, muaj nqis ceev faj kev nkag siab los ntawm txhua tus kws kho mob thiab tus neeg siv khoom.
1.Qhov lub ntsiab lus ntawm DC ARC striking
Kev ncaj qha ua arcing, raws li lub npe qhia, yog hais txog qhov tshwm sim uas muaj cov ntsiab lus ntawm cov ntsiab lus tam sim no hauv qhov kev cuam tshuam tam sim ntawd.
Ib lub tshuab hluav taws xob yog hom roj tawm roj o aus. Thaum cov roj ntsha yog ionized, nws tsim cov channel ua conductive, uas ua rau hluav taws xob arc. Nyob rau hauv photovoltaic DC voj voog, thaum ib qho kev sib txawv me me tshwm sim hauv Circuit Court, DC voltage thoob plaws qhov sib txawv yuav tsim hluav taws xob teb nyob hauv nws. Thaum lub zog hluav taws xob teb lub zog ncav cuag ib theem, huab cua molecules dhau los ua ionized. Huab cua molecules yog ua los ntawm atoms, uas muaj feem ntawm qhov tseem ceeb them nuclei thiab cov hluav taws xob them hluav taws xob. Nyob rau hauv ib lub zog fais fab teb, hluav taws xob nce zog txaus zog kom tawg dawb los ntawm lub nucleus thiab dhau los ua cov tshuab hluav taws xob dawb. Cov tshuab hluav taws xob ua tau dawb nrawm hauv hluav taws xob teb, tsoo nrog lwm cov huab cua molecules, ionizing ntau molecules, yog li tsim cov hluav taws xob dawb thiab muaj txiaj ntsig ions. Cov txheej txheem no yog hu li roj teeb tawg. Thaum cov roj tau tawg, ib daim ntawv hluav taws xob arc.
DC ARC SCC Txheej Txheem:





Rau ncaj qha tam sim no, vim nws tsis muaj xoom hla kev taw tes thiab cov kev coj tam sim no tsis hloov, lub arc tuaj yeem tau txais lub zog tsis tu ncua, ua rau nws tsis yooj yim los tua nws tus kheej.
Raws li cov txheej txheem sib txuas sib txuas thiab cov arcs tuaj yeem muab faib ua series arcs (grounding arcs (hauv av arc tuaj yeem suav tias yog kev sib tw tshwj xeeb arc). Series arcs feem ntau tshwm sim nyob rau hauv ib tug nyob ib tug neeg saib xyuas. Vim tias cov kab sib txuas ntawm tus cwj pwm me me thiab muaj ntau tus neeg saib xyuas, qhov ntau tshwm sim yog siab dua; Ntxiv mus, txij li koob arc lub cim tsis muaj zog thiab yooj yim ntsej muag los ntawm suab nrov, nws yog qhov nyuaj los ntes thiab, yog tias tsis tau hais tawm hauv lub sijhawm, tuaj yeem ua rau yooj yim hluav taws. Parallel arcs feem ntau tshwm sim ntawm cov neeg nyob sib txawv. Txij li thaum cov kab ke sib txuas yog qhov loj thiab txoj hauv kev yog cov nyom, qhov zaus ntawm qhov tshwm sim yog qis dua. Tam sim no, kev tiv thaiv kev tiv thaiv xws li Fusent thiab Circuit Court tej kev sib tsoo tuaj yeem tswj hwm qhov kev cuam tshuam ntawm kev sib tw arcs.

2. tsim ntawmDC ARC DRIKING
2.1Connection Cheebtsam Cheebtsam Cheebtsam
Cheebtsam sib txuas yog ib qho ntawm cov teeb meem tshwm sim tshaj plaws hauv photovoltaic thiab kuj tseem yog qhov ua rau muaj qhov tseem ceeb ntawm DC Arcing.
- Xoob, oxidized, lossis hnav npog (xws li MC4 plugs) yog cov teeb meem nquag, thaum lub sijhawm ntev siv, cov khoom siv yuav xoob vim yog qhov kev co rau cov khoom siv xws li kev hloov pauv. Cov xoob txuas tuaj yeem nce kev sib chwv tiv thaiv, tsim cov nyiaj kub loj thaum ua kom sov thaum muaj kev kub ntxhov. Kev kub siab rau nrawm nrawm nrawm nrawm nrawm nrawm nrawm thiab hnav cov kev sib txuas, tsim kom muaj kev sib txawv uas nws tuaj yeem ua rau muaj kev sib txawv, uas tuaj yeem ua rau muaj kev sib kis.
- Cable sib koom ua ke tsis tau txog ntawm tus qauv: tsis txaus ntseeg kev quab yuam ntawm cov pob qij txha sib chwv, ua rau muaj kev kub ntxhov ntau, thiab tuaj yeem ua rau muaj kev ua yeeb yam siab.
2.2conductor teeb meem
Cov xov hlau yog qhov tseem ceeb ntawm photovoltic tshuab rau kev xa mus tam sim no, thiab lawv cov kev ua tau zoo thiab cuam tshuam ncaj qha rau kev ua haujlwm ntawm lub system.
- Kev puas tsuaj rau cov txheej cable rwb thaiv tsev tuaj yeem ua rau muaj kev sib txawv ntawm tus neeg xyuas lub cev thiab cov khoom siv hlau, uas tuaj yeem siv rau cov khoom siv xws li kev puas tsuaj lossis tshuaj lom neeg.
- Cov hlau yuav raug puas tsuaj los ntawm sab nraud rog (xws li cov nqaj gnawing lossis cov khoom sib txhuam hauv zos), uas tseem yog ib qho ntawm cov chaw nres tsheb hauv nroog, cov khoom siv sab nraum zoov ntawm cov xaim ntawm ib lub sijhawm.
2.3environment thiab Kev Laus Qhov
Cov xwm txheej ib puag ncig thiab cov cuab yeej siv kev laus kuj tseem ceeb ua rau DC Arcing hauv photovoltaic.
- Ntev ntev li kub thiab cov av noo muaj peev xwm nrawm nrawm, cov ntaub ntawv ntawm cov txheej txheem uas dhau los ua haujlwm, ua rau lawv ua tau zoo; Nyob rau hauv high {- noo noo ib puag ncig, cov khoom siv tuaj yeem ua kom ntub, cuam tshuam rau lawv cov khoom rwb thaiv tsev.
- Hmoov av thiab corrosion tsim nyob rau ntawm cov ntsiab lus sib txuas, uas tuaj yeem cuam tshuam kev ua kom haum rau kev sib txuas, cov khoom sib txuas nrog cov hmoov av thiab cov tshuaj sib xyaw. Cov ntaub ntawv no tuaj yeem cuam tshuam qhov kev sib kis hluav taws xob tam sim no, nce qhov tsis kam ntawm cov ntsiab lus sib txuas, tsim kom muaj kub thiab muaj peev xwm ua rau arcing.
3.Detection Technology thiab daim ntawv thov ntawm DC arc hauv photovoltaics
3.1arc Txhaum Circuit Interrupter (AFCI/ ANDD)

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Chaw ua uas tsis tau haus |
Kev qhia tshwj xeeb |
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Cov Qauv Ua Raws Cai |
IEC / EN62606, IEC / ENEC / ENC / ENC1009, GB / T31143-2014, GB14048.2 |
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Cov Chaw Ua Haujlwm Ntsuas Ua Haujlwm |
AC 230V / AC 110V |
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Nyob Qhov Coob |
50HZ / 60HZ |
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Rated tam sim no (hauv) |
6, 10, 16, 20, 25, 32, 40, 50, 63A |
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Tus naj npawb ntawm tus ncej |
1P / 2P |
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Ntaus nqi impulse withstand voltage Uimp |
4KV |
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Ntsuas luv luv - Circuit Rard Lub Peev Xwm |
4.5ka |
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Rated tripping tam sim no nyob rau hauv |
10MA ~ 500mA Kho tau |
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Rated tsis - tripping tam sim no |
5I |
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Tripping nkhaus |
5I |
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Hom Kev Lag Luam Yam |
Instantaneous, ncua sij hawm, nrog xaiv |
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Take Hom |
Ac, a |
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Adjustable Overvoltage ntau |
250 - 280V |
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Adjustable Undervoltage Ntau |
180 - 120V |
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Kev sib txuas lus hom |
RF2.4G tuaj yeem npav |
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Kev tiv thaiv yooj yim |
Tuaj yeem cuam tshuam cov hwj huam cuam tshuam rau hauv cov ntaub ntawv luv luv, ntau dhau, arc thiab txhob txwm ua txhaum hauv kev thauj khoom |
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Lwm cov yam ntxwv ua haujlwm |
Equipped with LED status indicator, fault memory, LED indicator function for load (>2a), Qaum Kev Tswb Muaj Peev Xwm, Muaj peev xwm ntawm kev paub txog wireless networking thiab kev tswj hwm lub zog ua haujlwm |
Txoj haujlwm ntawm AFCI yog kom 'ntes thiab txiav tawm lub zog' tam sim ntawd thaum tiv thaiv hluav taws los ntawm kis mus.
Nws feem ntau yog ua ke rau hauv DC Combiner thawv, inverers, lossis Circuit Courers, lossis Circuit Courrers los saib cov cim tam sim no hauv lub sijhawm tiag tiag. Thaum ib qho arc tshwm sim, cov nthwv dej tam sim no tshwj xeeb high- suab nrov thiab suab nrov. AFCI siv Algorithms kom paub txog qhov teeb liab txawv txawv thiab nrawm nruam qhov Circuit Court.

Raws li qhia hauv cov spectrum tam sim no, lub liab qhia tau tshwm sim ntawm ib lub tshuab hluav taws xob, sib piv rau lub xiav uas tsis muaj ARC.
Nyob rau hauv ib qho hluav taws xob tseg, keeb kwm yav dhau los random suab feem ntau tsuas yog sib txawv ntawm cov zaus ntau dua 200 khz. Nyob rau hauv kev sib piv, hloov maub los circuits xws li inverters hauv hluav taws xob feem ntau ua haujlwm ntawm spectra hauv qab 50 Khrz. Tsis tau hais txog, AC Fais Fab Cov Khoom Siv Hluav Taws Xob nws tus kheej yog nyob ntawm ib qho qis dua ntawm 50/60 Hz. Yog li ntawd, los ntawm kev siv FFT Algorithm los hloov cov hlua txuas ntxiv tam sim no mus rau qhov sib txawv ntawm kev ua haujlwm ib txwm muaj ntawm Circuit Court thiab txawv txav Arcing.
Lub ntsiab qauv
AFCI Arc Txhaum Cai Circuit Court tsuas yog muaj tus qauv breaker, to zog module, teeb liab chav tsev module, thiab kev sib txuas lus daws teeb meem.
- Fais fab module: Khoom siv fais fab rau cov khoom siv cuam tshuam hauv AFCI / ANDD.
- Kev ntsuas tus qauv module: Tam sim no teeb liab nyob rau hauv lub circuit Court tseem tam dhau los ntawm ib kab tam sim no hloov mus rau lub teeb liab kev kawm. Tus qauv qauv, kho kom zoo, thiab lim cov teeb liab ua ntej xa nws mus rau microcontroller rau kev ua.
- Tripping module: Hauv AFCI Arc Txhaum Cai ntawm lub zog hluav taws xob, ua kom txuag tau lub zog hluav taws xob, ua kom haum electromagnetic system, yog li nthuav dav txuag hluav taws xob, yog li nthuav kev txuag hluav taws xob. Cov khoom siv buffering tau ntxiv los txo cov zog cuam tshuam rau hauv lub tshuab hluav taws xob, txhim kho tus hloov pauv kev ua haujlwm thiab txuas ntxiv nws lub neej pabcuam. Cov txheej txheem kev ua haujlwm ntawm kev tawm cov qauv tsheb tuaj yeem tau txais cov cim kev sib cav hauv Circuit Court los ntawm kev tswj hwm lub tshuab hluav taws xob rhuav lub circuitfagnetic. Tom qab qhov txhaum tau tshem tawm, nias lub khawm ua haujlwm rov pib dua cov qauv.
- Kev sib txuas lus interface: Cov qauv no tso cai tiag- lub sij hawm kis tau tam sim no, hluav taws xob kev sib kis rau lub davhlau ya nyob twg, ua rau saib xyuas cov chaw taws teeb.
Ua Haujlwm Cov Ntsiab Cai
Lub ntsiab tswj chip mcu ntawm AFCI Arc Txhaum Circuit Court soj ntsuam cov teeb liab tam sim no lub teeb liab tam sim no hauv lub sijhawm tseem ceeb. Thaum lub arc ua txhaum nyob hauv Circuit Court tseem ceeb, lub microcontroller xa lub cim dawm, thiab lub Tebchaws Circuit Coedutes lub chaw ua haujlwm.
3.2ReFrared Thermal Ntsuas Technology

Qhov cua sov infrared cermal kuaj cov cua sov tsis zoo ntawm cov ntsiab lus sib txuas los ntawm lub koob yees duab infrared los ntawm infrc txaus ntshai kom raug txheeb xyuas ua ntej. Kev tiv tauj tsis zoo yog feem ntau nrog los ntawm kev siv hluav taws xob ntau zaus, thiab thaj chaw kub thiab txias, muab cov neeg ua haujlwm kho kom pom zoo, muab cov neeg ua haujlwm saib xyuas nrog kev siv cov txuj ci.
4. Caib cov kev ntsuas thiab kev siv rau DC arc faults hauv photovoltaics
4.Qhov siab teeb tsa
Kev tsim kho kom raug yog lub hauv paus rau kev tiv thaiv DC arcing hauv photovoltaic. Thaum lub sij hawm cov txheej txheem teeb tsa, ua kom cov sib txuas thiab cov pob qij txha cable yog crossly crimped kom tsis txhob sib txuas. Cov cuab yeej tshaj lij yuav tsum tau siv rau crimping, kev khiav hauj lwm nrog lub zog teev cia kom ntseeg tau tsawg kawg ntawm cov ntsiab lus sib txuas.
Nyob rau tib lub sijhawm, xaiv cov ntaub ntawv rwb thaiv tsev uas ua tau raws cov qauv los txo qhov kev pheej hmoo ntawm kev puas tsuaj ntawm kev puas tsuaj. Thaum txhim kho cov cables, kom tsis txhob muaj ntau dua khoov thiab ncab kom tiv thaiv kev puas tsuaj rau cov txheej rwb thaiv tsev.
4.2ndon Yuav Xaiv
Xaiv cov txuas thiab cov xaim uas tiv thaiv kev laus thiab kub, thiab tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hnyav, txhim kho cov kev tiv thaiv theem ntawm Cheebtsam (xws li IP65 / IP67). Thaum xaiv cov khoom siv, cia li xav txog cov txheej txheem ib puag ncig ntawm cov photovoltaic chaw nres tsheb fais fab, huab cua, thiab corrosiveness.
Piv txwv li, hauv photovoltaic fais fab nroj tsuag hauv siab -} cov chaw kub, cov khoom siv tau uas muaj peev xwm ua tau ruaj khov yuav tsum raug xaiv; Nyob rau hauv cov kev xeb hnyav ib puag ncig xws li cov ntug hiav txwv, cov khoom siv nrog corrosion kuj yuav tsum tau xaiv.
4.3System Tsim Kev Tsim Kho Kom Txhim Kho
Kev Tsim Kho Cov Txheej Txheem Ua Kom Loj yog qhov tseem ceeb rau kev tiv thaiv DC Arcing hauv photovoltaic. Thaum lub sij hawm tsim qauv, nws yog ib qho tseem ceeb kom tsis txhob muaj ntau dhau ntawm cov qauv kev nyab xeeb), txo qis txoj kev nyab xeeb khiav, thiab txo qhov ua kom muaj qhov sib txawv ntawm kev tawm mus.
Txoj kev npaj ua npaj cov kev npaj ntawm photovoltaic thiab cov kev coj ntawm cov cable, aiming kom txo qis cable ntev thiab txo cov kab thiab pob qij txha hauv cov cable. Nyob rau tib lub sijhawm, cov khoom tiv thaiv uas tsim nyog yuav tsum tau nruab nrog, cov nkoj hluav taws xob, thiab arc tsis yooj yim tiv thaiv cov ntaub ntawv ntawm kev txawv txav hauv Circuitfal.









