Core Functions ntawm Hnub Ci PV String Fuses
Hnub ci photovoltaic (PV) hlua fuses yog ib qho tseem ceeb tiv thaiv ntaus ntawv ntawm DC sab ntawm PV system. Nws cov haujlwm tseem ceeb yog:
Tshaj dhau thiab luv luv -Kev tiv thaiv Circuit Court: Thaum PV hlua hla dhau los ntawm kev ua txhaum sab hauv (xws li kev puas tsuaj los yog luv luv Circuit Court) lossis lwm yam (xws li qhov tsis zoo tshwm sim los ntawm lub hnub ntxoov ntxoo), lub fuse fuses lub Circuit Court los tiv thaiv overheating, puas los yog txawm hluav taws.
Ntau-Txoj Kev Tiv Thaiv Qib:
Hauv PV systems, fuses feem ntau ua haujlwm ua ke nrog cov cuab yeej tiv thaiv hauv cov khoom siv xws li cov thawv sib txuas thiab cov tshuab hluav taws xob los tsim cov txheej txheem tiv thaiv ntau- qib. Serial fuzes, piv txwv li, tuaj yeem cais cov ceg txhaum cai sai sai, tiv thaiv kev ua txhaum ntawm kev sib kis thoob plaws hauv lub array, thiab xyuas kom muaj kev ua haujlwm zoo ntawm lwm qhov ntawm lub cev.
Cov Khoom Siv Kev Nyab Xeeb Kev Nyab Xeeb Kev Nyab Xeeb: Tom qab melting, yuav muaj qhov pom tseeb tawg, yooj yim rau kev khiav lag luam thiab cov neeg ua haujlwm tu kom ua tiav kev saib xyuas kev nyab xeeb. Nyob rau tib lub sij hawm, nws tiv thaiv faulty tam sim no ntws rov qab mus rau lwm yam kev noj qab haus huv cov hlua los yog roj teeb cia systems, txo cov kev pheej hmoo ntawm kev puas tsuaj rau theem nrab.
Piv nrog cov pa fuses, daim ntawv thov photovoltaic muaj cov cai tshwj xeeb:
Vim nws cov yam ntxwv DC, ib puag ncig high voltage thiab sab nraum zoov daim ntawv thov, PV systems muaj cov nram qab no tshwj xeeb yuav tsum tau rau fuses:
DC Arc Extinguishing muaj peev xwm:
Zero crossover kev sib tw: DC fais fab mov tsis muaj lub sij hawm xoom crossover cov ntsiab lus, ua rau arc extinguishing nyuaj dua AC zog. Photovoltaic fuses yuav tsum tau tsim tshwj xeeb (xws li elongating arc los yog siv cov khoom siv tua hluav taws xws li quartz xuab zeb) kom quab yuam arc extinguishing thiab tiv thaiv kom tsis txhob muaj hluav taws kub.
Muaj peev xwm tawg tau siab: fuses yuav tsum muaj peev xwm tiv taus siab DC voltage (xws li . 1000V, 1500V) thiab luv luv - Circuit Court tam sim no los ntawm PV systems. Lub peev xwm tawg yog feem ntau yuav tsum tau siab dua 20kA kom ntseeg tau tias muaj kev sib cais txhaum cai.
Environmental Adaptability:
Weatherability: Cov chaw sab nraum zoov yuav tsum tiv taus qhov kub thiab txias (piv txwv li, thaj chaw suab puam), qhov kub thiab txias (xws li latitudes siab), UV hluav taws xob thiab qhov hloov pauv ntawm cov av noo. Cov khoom siv casing yuav tsum muaj kev tiv thaiv - kev laus thiab tiv thaiv - cov khoom muaj zog.
Kev tiv thaiv kev ntsuas: IP65 lossis siab dua yog qhov yuav tsum tau tiv thaiv plua plav thiab dej nag los ntawm kev nkag mus thiab ua rau rwb thaiv tsev tsis ua haujlwm.
Precise parameter sib piv:
Rated Voltage: Qhov siab tshaj plaws DC voltage yuav tsum siab dua los yog sib npaug rau qhov system (piv txwv li, 1500V system yuav tsum muaj aa 1500V lossis siab dua fuse) txhawm rau tiv thaiv arc reignition thaum lub sij hawm disconnection.
Rated tam sim no: Qhov siab tshaj plaws ua hauj lwm tam sim no ntawm txoj hlua (siv rau hauv luv luv-Isc tam sim no Circuit Court, kub coefficient thiab tus naj npawb ntawm kev sib tw khiav) yuav tsum muab sib npaug los ntawm qhov kev nyab xeeb (feem ntau yog 1.25-1.56) thiab yuav tsum tsis txhob tshaj qhov ntsuas tam sim no ntawm cov khoom tiv thaiv.
Lub sij hawm tam sim no cov yam ntxwv: Cov kev cai tiv thaiv yuav tsum tau ua raws li, piv txwv li, los ntawm fusing ntawm 1.35 npaug ntawm qhov ntsuas tam sim no nyob rau hauv ib teev los xyuas kom meej qhov ua txhaum sai sai thaum tsis txhob yuam kev.
