Hnub ci fais fab system rau photovoltaic fuses
1.Los ntawm qhov system loj
- Tsev neeg photovoltaic system (ru tsev photovoltaic)
Qhov no yog qhov yooj yim daim ntawv thov scenario rau photovoltaic fuses. Nyob rau hauv lub tsev photovoltaic systems, ib tug fuse feem ntau yog ntsia nruab nrab ntawm photovoltaic module thiab lub inverter, nrog rau ob lub luag hauj lwm tseem ceeb: los tiv thaiv lub sab hauv Circuit Court ntawm lub tsev los ntawm lub backflow shock tshwm sim los ntawm lub photovoltaic array, thiab kom sai sai txiav qhov txawv txav tam sim no los tiv thaiv overheating thiab txawm hluav taws thaum lub rooj sib txoos luv tawm. Cov tshuab zoo li no feem ntau siv qis - cov kev qhia tshwj xeeb tam sim no (xws li 1A txog 30A) thiab sib xws nrog cov hlua inverters.
- Industrial thiab coj mus muag faib fais fab chaw nres tsheb
Nyob rau hauv lub ru tsev lossis hauv av tis systems nyob rau hauv factories, malls, tsev kawm ntawv, tsev kho mob, thiab lwm yam., fuses feem ntau yog ntsia nruab nrab ntawm cov panels thiab lub thawv combiner los tiv thaiv lub combiner box thiab tag nrho cov DC kab. Vim yog qhov nyuaj ntawm cov tshuab hluav taws xob hauv ib puag ncig kev lag luam, qhov kev tawg thiab cov lus teb ceev ntawm fuses yog qhov xav tau ntau dua thiab cov ntsiab lus tsim nyog yuav tsum tau xaiv.
Loj loj terrestrial photovoltaic fais fab chaw nres tsheb (centralized system)
Cov chaw tsim hluav taws xob loj muaj ntau yam khoom siv thiab ntau qhov kev teeb tsa fuse. Ntxiv nrog rau kev xa tawm fuses ntawm qhov kawg ntawm txhua txoj hlua, ntau txheej kev tiv thaiv yuav tsum muaj ntawm lub thawv sib txuas thiab lub inverter thiab ntawm lub inverter's DC input npav. Lub kaw lus tuaj yeem raug xaiv rau qhov tshwj xeeb siab tam sim no (xws li . 200A txog 500A), hloov mus rau hauv nruab nrab inverters, thiab yuav tsum muaj peev xwm crushing ntau tshaj 50kA.
2. Los ntawm kev tsim qauv
Serial photovoltaic systems
Qhov no yog lub prevailing architecture rau faib photovoltaics. Txhua qhov zoo lossis qhov tsis zoo tso tawm davhlau ya nyob twg ib txoj hlua yuav tsum txuas nrog lub fuse (lossis siv lub davhlau ya nyob twg fuse) rau ib leeg - txoj hlua tiv thaiv. Thaum ib txoj hlua ua haujlwm tsis zoo, lub fuse melts sai sai, cais cov ceg ua haujlwm tsis raug cuam tshuam rau kev ua haujlwm ntawm lwm cov hlua ib txwm muaj. Cov hlua inverters feem ntau muaj peev xwm txheeb xyuas cov hlua tam sim no thiab tuaj yeem siv los nrhiav sai sai thiab hloov fuse faults.
Centralized photovoltaic system
Ntau cov hlua yog thawj sib sau ua ke thiab tom qab ntawd txuas nrog lub hauv nruab nrab inverter. Nyob rau hauv no architecture, lub fuse yuav tsum tau npog ob theem: ib tug serial ceg tiv thaiv lub thawv ua ke, thiab lub tsheb npav tiv thaiv DC input kawg ntawm lub inverter. Qee lub tshuab tseem yuav siv cov fuzes ntse uas tuaj yeem daws qhov kev pheej hmoo ntawm kev ua tsis tiav xws li ceg rov qab thiab me me ntau dhau.
Integrated photovoltaic zog cia system
Nyob rau hauv lub photovoltaic + lub zog cia qhov system, photovoltaic fuse yuav tsum tau tiv thaiv tsis tau tsuas yog DC sab ntawm lub photovoltaic system, tab sis kuj lub tswv yim tiv thaiv ntawm lub zog cia system. The charge-discharge circuit of the energy storage battery pack kuj yuav tsum muaj kev tiv thaiv overflow thiab luv-circuit tiv thaiv. Photovoltaic fuses thiab lub zog cia fuses ua ke ua tiav DC sab tiv thaiv saw hauv DC txuas txuas.
3. Los ntawm Roj Teeb Tshuab Hom
- Crystalline silicon roj teeb system (xws li monocrystalline silicon thiab polycrystalline silicon)
Photovoltaic fuses muaj kev hloov pauv dav dav rau crystalline silicon cell systems thiab muab kev siv ntau dhau thiab luv luv - tiv thaiv Circuit Court rau cov qauv siv lead ua silicon thiab cov silicon modules. Tshwj xeeb tshaj yog thaum muaj ntau yam sib txuas ua ke mus rau tib lub MPPT channel, lub fuse tuaj yeem tiv thaiv ib qho kev txhaum los ntawm kev ua rau lwm cov series tam sim no ntws rov qab.
- Nyias zaj duab xis roj teeb System
Nyias- cov roj teeb zaj duab xis muaj cov yam ntxwv hluav taws xob sib txawv los ntawm cov roj teeb crystalline silicon thiab muaj luv luv luv - cov hluav taws xob tam sim no. Ib qho yooj yim fuses yuav tsis ua haujlwm ntseeg tau thaum muaj kev ua haujlwm tsis zoo. aiming ntawm tus yam ntxwv no, tshwj xeeb PV DC fuse yog optimized, uas zoo txiav tawm qhov tsawg voltage txhaum tam sim no thiab muab kev tiv thaiv txaus.
4. Siv tau rau hauv cov xwm txheej tshwj xeeb
- High - qhov chaw siab tshaj photovoltaic fais fab mov
Hauv thaj chaw siab siab nrog cov huab cua nyias thiab cov cua sov tsis zoo, qhov ntsuas tam sim no ntawm fuzes yuav tsum tau txo qis raws li ib puag ncig nqa peev xwm nkhaus. Photovoltaic fuzes muaj ntau yam kev hloov pauv ntawm qhov kub thiab txias (feem ntau txog -25 ° C mus rau +70℃C lossis txawm tias +85℃C) uas ua rau lawv tuaj yeem tiv taus qhov chaw huab cua.
- Siab - qhov kub thiab txias ib puag ncig fais fab chaw nres tsheb (xws li suab puam photovoltaic puag)
Thaum lub ambient kub tshaj 40℃C, lub peev xwm nqa tam sim no ntawm lub fuze yuav txo, thiab ib tug qauv nrog ib tug ntau dua rated tam sim no los yog ib tug txhim khu kev qha tshav kub dissipation tsim yuav tsum tau xaiv. Cov huab cua tiv thaiv tsim ntawm photovoltaic fuses tuaj yeem tiv taus lub teeb ultraviolet, kub kub, av noo, thiab lwm yam.
- Dej photovoltaics (ua tiav kev nuv ntses photovoltaics, ntab photovoltaics)
Nrog high humidity thiab ntsev pos huab corrosion, yuav tsum muaj kev tiv thaiv qib thiab corrosion kuj ntawm lub plhaub fuse. Photovoltaic fuses feem ntau siv cov nplaim taws- cov ntaub ntawv retardant (xws li PA66) raws li lub hau npog nrog kev tiv thaiv ntsuas tsis qis dua IP2X, thiab qee cov khoom tuaj yeem ua tiav qib siab ntawm kev tiv thaiv.
5. Kev faib tawm los ntawm qib voltage
- 1000V DC qhov system
Qhov no yog qhov tseem ceeb tshaj plaws voltage theem rau photovoltaic systems thiab yog siv nyob rau hauv feem ntau faib tsev neeg thiab coj mus muag systems. Qhov sib thooj photovoltaic fuse yog ntsuas ntawm DC1000V nrog qhov ntsuas tam sim no ntawm 1A txog 30A (txoj hlua theem) lossis siab dua (qib tsheb npav).
- 1500V DC qhov system
Nrog rau qhov nrov ntawm cov khoom siv hluav taws xob siab, qhov kev faib ua feem ntawm 1500V tshuab hauv cov chaw nres tsheb loj hauv av tau nce sai. Qhov sib thooj photovoltaic fuse yuav tsum muaj qhov ntsuas hluav taws xob ntawm DC1500V, nrog lub peev xwm tawg ntawm 20 kA-25 kA rau qee yam khoom.
