Kev tsim kho thiab siv fuses rau kev tiv thaiv system photovoltaic
Abstract: Qhia cov keeb kwm kev txhim kho ntawm fuses siv rau kev tiv thaiv overcurrent hauv cov tshuab photovoltaic. Los ntawm cov kev cai ntawm IEC thiab UL cov qauv rau photovoltaic fuses, ua ke nrog kev tsim hluav taws xob kev ua haujlwm ntawm cov paub zoo inverter thiab DC combiner lub thawv ntim khoom hauv tsev thiab sab nraud, muab cov kev ceev faj rau kev xaiv qhov tseeb ntawm fuses rau photovoltaic system tiv thaiv.
Cov ntsiab lus: tiv thaiv dhau; gPV chav fuse; photovoltaic DC lub cav hluav taws xob lub thawv: siab-zog centralized inverter
PV Fuses Taw Qhia
Xyoo 1864, kev lag luam hluav taws xob siv platinum hlau ua ib qho fuse los tiv thaiv cov kab hauv qab. Lub fuse tau yug nyob rau hauv lub sijhawm ntawm incandescent teeb thiab muaj keeb kwm ntau dua 0 xyoo ntawm kev thov. Lub fuse yeej tsis tau ua tiav thiab nws qhov kev cia siab tau dhau los ua" kab kawg ntawm kev tiv thaiv" rau hluav taws xob Circuit Court tiv thaiv.
Cov kab kev tiv thaiv ntawm kev fuse mus rau DC hluav taws xob cov hluav taws xob tuaj yeem raug tshawb nrhiav txij li xyoo 1879. Tus xibfwb Thampson tau tsim lub fuse txuas xyoo ntawd. Ob tug xaim hlau txuas nrog lub pob hlau. Lub pob yog ua los ntawm txhuas thiab tin. Alloy lossis lwm yam qis melting point conductive cov ntaub ntawv. Thaum qhov loj txaus tam sim no dhau ntawm lub fuse rau lub sijhawm ntev txaus, lub npas hlau yuav yaj thiab poob, yog li cov xov hlau tau sib cais thiab lub Circuit Court tau tawg. Nws tsim nyog sau cia tias ua ntej 1890, feem ntau ntawm kev siv hluav taws xob siv tam sim no ncaj qha, yog li tom qab lub Circuit Court tau txiav tawm tam sim ntawd, ib qho arc yuav tsis pom tshwm sim. Yog li, qhov kev tiv thaiv fuse yog thawj zaug thov rau DC puag ncig, thiab tom qab ntawd thov mus rau AC ib puag ncig.
Lub hauv paus ntsiab lus ntawm kev fuse yog cia ib qho me me ntawm cov khoom siv fuse thaum tsim nyog, kom cov khoom noj qab haus huv ntawm qhov chaw tiv thaiv tsis raug puas ntsoog, thiab qhov kev puas tsuaj ntawm qhov yuam kev raug txwv tsuas yog qhov tsawg tshaj plaws ntawm qhov ntau.
Raws li lub sijhawm tam sim no, lub fuse tuaj yeem tsim ntawm ib los yog ob peb melts hauv parallel. Thaum lub qhov dej loj tiav txaus dhau ntawm lub fuse, cov yaj melts, thiab tom qab ntawd ib qho arc yog tsim.
Ib tug
1 Tus txheej txheem ntawm fuse yog lub hauv paus ntawm kev ua haujlwm zoo
Thaum pib xyoo 1931, International Electrotechnical Commission (IEC) tau hais tias:
l) Txhua fuse tsim thiab tsim tawm yuav tsum muaj peev xwm siv txuas ntxiv nyob rau ntawm cov nqi tam sim no;
2) Thaum qhov tam sim no ntau dua tus nqi qee qhov tshwm sim los ntawm ntau dhau, lub fuse yuav tsum muaj peev xwm ua haujlwm hauv lub sijhawm luv luv los tiv thaiv cov khoom siv los ntawm kev puas tsuaj;
3) Thaum muaj xwm txheej tshwm sim rau cov cuab yeej lossis kab, lub fuse yuav tsum ua sai sai los txo cov kev puas tsuaj ntawm qhov kev sib tsoo thiab kom tsis txhob muaj kev puas tsuaj rau cov khoom noj qab haus huv.
Yog li ntawd, lub fuse yuav tsum muaj qhov cuam tshuam nyob rau lub sijhawm-tam sim no tus yam ntxwv. Rau txhua daim ntawv thov, lub fuse yuav tsum tau xaiv kom raug. Thaum muaj qhov txhaum tshwm sim, qhov kev ua txhaum ntawm tus neeg ua txhaum tuaj yeem ua kom raug tseeb kom tsis txhob cuam tshuam qhov tsis txaus. Cov lus 1 sau cov qauv fuse ntawm ntau lub teb chaws thiab cheeb tsam siv hauv kev lag luam photovoltaic.
HNUB CI ZOG
Cov lus 1 Cov kev siv ntawm photovoltaic fuse cov qauv hauv ntau lub teb chaws thiab cheeb tsam
Tus lej naj npawb Cov cai siv tau
IEC 60269. 6. 2010 Ed.l
GB / T 13539, 6 · 2013 UL 2579. 2m3 Ed. 9. 9
DIN EN 60269 · 6 一 2011 Pab txhawb ntxiv rau fuse-txuas rau kev tiv thaiv lub hnub ci photovoltaic lub nruab zog
Cov hluav taws xob hluav taws xob qis-Tshooj 6: Ntxiv rau yuav tsum tau fuse-txuas rau hnub ci photovoltaic system tiv thaiv
Fuses rau Photovoltaic Systems
Cov hluav taws xob hluav taws xob qis · Tshooj 6: Qhov yuav tsum tau ua ntxiv rau fuselinks rau kev tiv thaiv lub hnub ci photovoltaic lub zog hluav taws xob Cov Txheej Txheem International Electrotechnical Commission qauv
(Siv tau rau Tebchaws Europe) Suav Tebchaws Asmeskas cov qauv, UL Asmeskas tus qauv, Cov qauv German
2 Daim ntawv thov kev siv thoob plaws hauv fuses hauv tshuab photovoltaic hauv cov tebchaws European thiab Asmeskas. Cov kws tshawb nrhiav uas tau koom nrog kev tsim qauv thiab kev txheeb xyuas ntawm txhua qhov system ntawm photovoltaic hauv Tebchaws Europe thiab Asmeskas tau xaiv fuses ua cov hluav taws xob hluav taws xob tsawg rau kev tiv thaiv hluav taws xob hauv tshuab photovoltaic DC tom qab ceev faj sib piv thiab ntsuas. Daim ntawv thov kev siv thoob plaws hauv fuses hauv kev lag luam photovoltaic. Professor John Wiles tau sau ib tsab xov xwm xyoo 2008 thiab taw qhia tias qhov laj thawj vim li cas fuse raug pom zoo raws li kev tiv thaiv kev tiv thaiv tam sim no nyob hauv ib puag ncig nrog DC voltage tshaj 0 V yog qhov txiaj ntsig ntawm kev txiav txim siab ntawm qib tam sim no, kev ua tau zoo thiab qis tus nqi .]
Nws tuaj yeem pom tias cov ntawv lo ntawm photovoltaic modules yuav cim nrog
series Fuse" ;! Ge" Tshaj plaws Fuse
Kem 2 Lub luv-Circuit Court tam sim no ntawm photovoltaic modules thiab qhov siab tshaj plaws tam sim no theem txheeb cais ntawm series fuses
Roj teeb lub chaw tsim tshuaj Isc / A fuse tam sim no ntsuas Cov roj teeb hom
Thawj Hnub Ci
Thawj Hnub Ci
Hanergy Photovoltaic Trina Hnub Ci
Solarfun (Hanwha Hnub Ci () ne)
Canadian Hnub Ci
ET Hnub Ci
Ntawd yog, theem siab tshaj tam sim no ntawm lub fuse txuas nrog hauv kev sib txuas nrog feem. Nws tuaj yeem pom los ntawm Daim Ntawv 2 uas qhov sib txawv hauv cov txheej txheem kev tsim khoom ntawm lub hnub ci hluav taws xob coj mus rau qhov sib txawv loj hauv luv-Circuit Court tam sim no.
3 Kev siv txoj haujlwm thiab hom fuses hauv txhua qhov system photovoltaic. Coj cov inverters launched los ntawm ABB hauv North American ua lag luam ua piv txwv. Hauv cov tshuab photovoltaic hauv European thiab Asmeskas lub tebchaws thiab thaj chaw, kev siv fuses feem ntau muaj cov chaw nyob hauv qab no:
1) Qhov tuaj sab ntawm DC lub cav sib txuas: tiv thaiv lub hnub ci roj teeb txoj hlua (gPV chav fuse, IEC 60269-6):
2) DC sab hauv qhov nruab nrab ntawm centralized inverter: tiv thaiv DC sab inlet kev sib txuas (gPV chav fuse);
3) Centralized inverter Internal module tiv thaiv: tiv thaiv inverter module (R-chav fuse, IEC 60269 · 4);
4) Fuse tiv thaiv ntawm lub xov tooj tiv thaiv contactor hauv nruab nrab inverter: pre-charging circuit contactor tiv thaiv (gPV chav fuse);
5) Kev ntsuas qhov tseeb rau ntawm qhov av GFPD: siv rau kev txhaum ntawm lub tswb (gpv chav fuse);
6) AC sab ntawm centralized inverter: tiv thaiv inverter module thiab lub ntsiab hluav taws xob cov cuab yeej hluav taws xob nyob ntawm AC sab (R-chav fuse).
Ntawm lawv, thiab gpv chav fuse yog hom fuse. Fuses tau siv nyob rau hauv tag nrho ntawm 6 txoj haujlwm hauv photovoltaic system. Cov fuses muaj lub luag haujlwm rau yuav luag txhua DC sab overcurrent tiv thaiv ntawm lub thawv combiner thiab inverter thiab feem ntau ntawm AC sab overcurrent tiv thaiv.
Rooj 3 teev cov hom fuses uas ib txwm muaj. Los ntawm qhov pom ntawm lawv qhov chaw siv, nws tuaj yeem pom tias fuses yog cov khoom siv hluav taws xob tseem ceeb rau lub zog hluav taws xob tiv thaiv Circuit Court hauv centralized photovoltaic daim phiaj-txuas hluav taws xob tsim hluav taws xob. Kev txiav txim siab los ntawm thaj chaw loj thiab kev siv mus sij hawm ntev hauv Tebchaws Europe thiab Amelikas, ntev npaum li lub fuse tuaj yeem xaiv kom raug, tsis yog tsuas yog cov feem hauv tag nrho cov hluav taws xob muaj stably tiv thaiv ntev ntev, tab sis kuj tseem centralized inverter nws tus kheej tuaj yeem muaj kev tiv thaiv zoo.
Rooj ntawv 3 Siv cov hom fuses uas ib txwm muaj
gG
aM
aR
gR
gB feem ntau yog siv rau kev txuas fuse-txuas nrog ntau yam ntawm qhov muaj peev xwm rhuav tshem, feem ntau yog siv rau kev tiv thaiv cable thiab xaim
Fuse los tiv thaiv ib feem ntawm qhov muaj peev xwm tawg ntawm lub cev muaj zog
Fuse los tiv thaiv ib feem ntawm kev rhuav tshem ntawm cov khoom siv hluav taws xob
Fuse rau kev tiv thaiv qhov muaj ntau yam ntawm qhov muaj peev xwm ntawm cov khoom siv hluav taws xob (sai dua gS) photovoltaic fuse
Ua kom nce siv cov xov hlau los tiv thaiv tag nrho ntawm qhov muaj peev xwm ntawm kev rhuav tshem ntawm cov khoom siv hluav taws xob. Rated fuse txuas. Fuse txuas nrog txhua yam ntawm kev muaj peev xwm tawg rau cov mines.
Hauv Ntu 3, thawj tus tsiaj ntawv me qis qhia tias tawg ntau ntawm fuse; tus thib ob thiab tom qab ntawv loj qhia cov yam ntxwv, uas yog, qhia txog kev siv qeb thiab txhais cov ntau daim ntawv thov.
l)" g" sawv cev ntawm ntau qhov ntawm qhov muaj peev xwm fuse-txuas, uas txhais tau tias fuse-txuas tuaj yeem tsoo txhua qhov kev tiv thaiv ntawm qhov tsawg kawg melting tam sim no mus rau nws lub peev xwm tawg. Lub faus puv cov muaj peev xwm fuse tuaj yeem siv los ua cov cuab yeej tiv thaiv cais.
2)" ib" sawv cev ib nrab ntu ntawm kev rhuav tshem lub peev xwm fuse-txuas, uas txhais tau tias fuse-txuas tuaj yeem ua txhaum tsuas yog siab ntawm qee yam ntawm ntau yam ntawm nws qhov tam sim no. Ib feem ntawm qhov ntau ntawm qhov rhuav tshem lub peev xwm fuse txuas tuaj yeem siv rau kev tiv thaiv luv luv, yog li nws tuaj yeem siv hauv kev sib xyaw nrog lwm cov khoom siv uas muab kev tiv thaiv overcurrent. Ntau yam rhuav lub peev xwm fuse-txuas feem ntau kuj siv los ua kev tiv thaiv kev tiv thaiv rau lwm cov khoom siv hloov mus nrog qhov qis dua qhov peev xwm (xws li cov neeg tiv tauj lossis cov xov hluav taws xob).
Hais txog lub tswv yim ntawm 4gPV chav fuse
gpv tuaj yeem raug suav tias yog kev siv dav dav siv hauv tshuab photovoltaic DC, thiab nws kuj sawv cev rau lub fuse nrog qhov muaj ntau yam ntawm qhov muaj peev xwm tsoo.
Lub tswv yim ntawm hom fuse no tau yug los nrog kev qhia ntawm 1 E c 60269-6 tus qauv. Yav dhau los, gR tau siv los ua kev tiv thaiv fuse rau DC sab hauv Tebchaws Europe. Tom qab lub tswvyim ntawm gpv fuse tau muab tso rau pem hauv ntej, gR fuse Txoj haujlwm ntawm PV DC sab yog hloov. Asmeskas UL 2579 tus qauv (Fuses rau Photovoltaic Systems) tau npaj ua ntej thaum Lub Kaum Ob Hlis 2007. Cov qauv no yog ua raws li theem pib UL248 rau fuses, uas hais txog kev sim ntau dua uas yuav tsum tau ua raws li cov yam ntxwv ntawm kev tiv thaiv photovoltaic Circuit Court tiv thaiv.
Tus txheej txheem IEC qhia tias kev fuse rau kev tiv thaiv photovoltaic system (gPV chav fuse) siv hauv DC Circuit Court yuav tsum ua tau raws li cov cai nram qab no. 7]: l) Tus nqi qis tshaj tawg yog 10kA DC
2) Cov pa tsis-fuse tam sim no Inf: 1 彐 3 /,,, fuse tam sim no / f: L45 巛 Nco tseg: Qhov pom zoo fusing tam sim no hauv UL txuj: L35 0, qhov twg / n yog qhov tam sim no ntawm qhov fuse.
3) Cov ntawv pov thawj ntawm kev ntsuas ntsuas tam sim no yog kwv yees nrog 3000 puag ncig tam sim no.
4) Txhim cov ntaub ntawv pov thawj ntawm kev lees paub lub peev xim thaum nqus dej thiab cov dej num ua pov thawj hauv qab huab kub. Tsis tas li ntawd, kev pom zoo tam sim no thiab rhuav tshem kev ntsuas ntawm qhov txuas fuse yuav tsum tau npaj tom qab kev txheeb xyuas qhov tseeb ntawm kev lees paub thermal induction drift qib (piv txwv li ntsuas kub), thiab cov khoom ntsuas yuav tsum rov qab mus rau chav kub (25 ° C) rau tsawg kawg 3 teev ua ntej txuas ntxiv.
Kev ntsuam xyuas lub voj voog tam sim no yog kom ntseeg tau lub sijhawm ua haujlwm ruaj khov ntawm lub gpvtJk fuse raws li cov kub hloov tas li thiab thauj tam sim no nyob rau hauv qhov tseeb engineering ib puag ncig ntawm photovoltaic teb. Ntxiv mus, tus qauv stipulates tsuas yog yam tsawg kawg nkaus uas yuav tsum tau ua. Los ntawm kev siv tiag tiag, lub fuse hauv Tebchaws Europe thiab Amelikas yog qhov ruaj khov thiab txhim khu kev qha hauv thaj chaw.
Ib qho ntxiv, gpv chav fuses tau ua rau muaj txiaj ntsig zoo rau kev twv ua ntej ntawm kev ua txhaum ntawm tag nrho cov photovoltaic DC system. Hauv xyoo 2013, Sandia National Laboratory hauv Tebchaws Meskas tau xaiv gPV fuses los ntawm tag nrho ntawm 8 fuse cov tuam txhab ua cov khoom tshawb nrhiav, thiab kawm txog qhov pib qhov rhiab ntawm lub tswb tsis ua haujlwm (GFPD) yog qhov teeb meem.
Hais txog qhov sib txawv ntawm gPV chav fuse thiab lwm yam fuses nyob rau hauv lub sijhawm-tam sim no nkhaus, daim duab 1 qhia tau tias gpv chav fuse muaj cov lus teb nrawm heev. Nws pib tshuab thaum nws nkag mus rau L45 UL txuj / 0L350 fuse tam sim no ntau yam, kom ntseeg tau tias nws yog
HNUB CI ZOG
Rau
Nyob hauv qhov hluav taws xob DC ib puag ncig, luv-Circuit Court tam sim no tuaj yeem nrawm thiab nrawm txawm tias lub kaw lus luv luv Circuit Court txhaum tam sim no tsawg.
Raws li cov yam ntxwv ntawm DC tam sim no (tsis muaj xoom-qhov taw tes sib piv nrog AC tam sim no), qhov nrawm dua DC fuse txav, qhov cuam tshuam ntau ntawm qhov luv luv ntawm qhov txhaum ntawm qhov system yuav raug txo kom tsawg, thiab DC qhov txhaum tam sim no yuav tau tawg nti tawm tau zoo.
Fuse tam sim no / A
Lus Cim:" ×" hauv daim duab sawv cev qhov loj me ntawm kev sim tam sim no los ntsuas kev siv sijhawm ntawm kev fuse
Daim duab 1 Qhov sib txawv ntawm qhov nkhaus ntawm gpv chav fuses thiab lwm hom fuses
5 Ua kom raug xaiv qhov gPV chav fuse rau sab hauv sab ntawm lub thawv combiner
50 Kev txiav txim siab ntawm qib ntsuas voltage theem ntawm photovoltaic fuse
Un 冫 1.2Uoc (STC) (l) Hauv tus qauv, 0 yog tus ntsuas hluav taws xob ntawm lub photovoltaic fuse uas xav tau xaiv; Q.
Nws yuav tsum raug sau tseg tias raws li NEC 690.7, yog tias cov txheej txheem photovoltaic xav tau kev ua haujlwm ntawm qhov ntsuas kub qis dua 40 ℃, qhov ceeb toom 1.2 yuav tsum nce rau L25.
5 2 Kauj Ruam los txiav txim siab kev ntsuas ampere ntawm photovoltaic fuses
l) Txiav txim siab rau txoj kab ntau tshaj plaws tam sim no 0. Rau kev tsim tawm ntawm photovoltaic Circuit Court, qhov sib nrug ntawm qhov luv luv-luv tam sim no ntawm txhua txoj hlua txuas nrog rau hauv txoj hlua yuav tsum tau txiav txim siab los ntawm sib npaug ntawm qhov kev nyab xeeb ntawm L25. Noj txoj hlua li ib qho piv txwv, cov tshuaj yog:
max: 1.25 (/ scl {{2}} / sc2+ / sc3+", kaum Iscn) (2) NEC 60.8 · 0 hauv A) thiab (2), cov kev cai no yog coj mus rau hauv tus lej Circuit Court tam sim no ntawm cov khoom tiv thaiv /" yog nyob rau hauv kev sim hauv chaw teeb tsa sab hauv tsev (ntsuas ntsuas hauv STO, tab sis thaum photovoltaic cov qauv tau khiav hauv qhov chaw huab nyob rau ntawm qhov chaw, xws li tsis kub thiab muaj hnub ci muaj zog nyob rau lub caij ntuj no, lossis qhov hloov ntawm daus los roob thiab daus txhim kho lub teeb pom kev zoo, lub hnub ci hlwb Cov txiaj ntsig ntawm pawg thawj coj yuav siab tshaj 7", yog li NEC hais tseg tias 7" yuav tsum tau muab sib tshooj ntawm cov coefficient ntawm L25 los suav,
2) Txheeb xyuas qhov ntsuas nominal fuse ampere kev ntsuas. N EC 690.8 ause Clause Qhia txog qhov kev pov hwm ntawm kev tiv thaiv cov khoom siv tiv thaiv tshaj tsis tuaj yeem qis dua 125% thaum xav tias yuav muaj kev pov hwm ntawm cov khoom tiv thaiv overcurrent tiv thaiv. Hauv lwm lo lus, cov khoom tiv thaiv overcurrent tsis tuaj yeem txuas ntxiv ua haujlwm nyob rau hauv ntau dua 80% hauv nws qhov kev ntsuas tus nqi ampere. /0.8: L25: 125%).
Hauv=1.251mas (3)
(4) 3) Yog tias tsim nyog, huab ib puag ncig dhau qhov kev ua haujlwm ib txwm xav tau kev derated.
ntsuas (5) Hauv tus qauv, 7.1. d yog tus teev tus nqi ntawm cov fuse uas yuav tsum tau xaiv; K yog qhov txiav txim siab derating, qhov parameter no tuaj yeem txiav txim siab los ntawm derating kab muab los ntawm lub chaw tsim khoom ntawm fuse
4) Txheeb xyuas qhov ntsuas tam sim no ntawm lub fuse. 7. t. d Feem ntau, nws tsis yog sib npaug rau cov chav kawm tam sim no ntawm lub fuse, thiab cov fuse uas yog tus qauv tam sim no yuav tsum txiav txim siab raws li qib siab tam sim no. Cov kev ntaus nqi tam sim no ntawm cov fuses siv hauv lub thawv combiner yog cov hauv qab no (chav: A): 1, 2, 3, 4, 5, 6, 7, 8, 10,
1 2, xwm txheej, 16, 20, 25.
5) Tshawb xyuas qhov cable tiv thaiv los ntawm kev fuse. Nws yog qhov yuav tsum tau txiav txim siab tias qhov fuse amperage ntawm cov xaiv ntsuas tus qauv tam sim no tsawg dua qhov sib ntsuas ampere ntawm tus xaiv cable cov neeg xyuas pib. Yog tias nws tsis ua raws li qhov yuav tsum tau ua, vim qhov kev nyab xeeb, txoj kab uas hla ntawm lub xaim yuav tsum tau ua kom siab.