Cov khoom siv-theem ceev ceev kaw lub thawv PLC yog cov cuab yeej uas koom tes nrog cov khoom siv hluav taws xob nrawm nrawm los tsim lub photovoltaic DC sab nrawm kaw qhov system, thiab cov cuab yeej ua raws li American National Hluav Taws Xob Code NEC2017 & NEC2020 690.12 rau kev kaw sai ntawm photovoltaic chaw nres tsheb fais fab.Cov lus qhia tshwj xeeb xav kom lub tshuab hluav taws xob photovoltaic ntawm txhua lub tsev, thiab lub voj voog dhau 1 ko taw (305 mm) los ntawm photovoltaic module array, yuav tsum poob qis dua 30 V hauv 30 vib nas this tom qab pib kaw sai;Lub Circuit Court nyob rau hauv 1 ko taw (305 mm) los ntawm PV module array yuav tsum poob mus rau hauv qab 80V nyob rau hauv 30 vib nas this tom qab lub ceev shutdown pib.Circuit Court nyob rau hauv 1 ko taw (305 mm) los ntawm PV module array yuav tsum poob mus rau hauv qab 80V nyob rau hauv 30 vib nas this tom qab lub ceev ceev pib.
Cov tivthaiv-theem hluav taws kub ceev kaw qhov system muaj tsis siv neeg lub hwj chim tawm thiab rov qab ua haujlwm.Raws li lub hauv paus ntawm kev ua kom tau raws li qhov xav tau ntawm kev kaw nrawm nrawm ntawm NEC2017 & NEC2020 690.12, nws tuaj yeem ua kom lub zog tsim hluav taws xob ntau tshaj plaws ntawm lub tshuab hluav taws xob photovoltaic thiab txhim kho lub zog tsim hluav taws xob.Thaum lub zog tseem ceeb yog qhov qub thiab tsis muaj qhov xav tau thaum muaj xwm txheej ceev, lub module theem ceev kaw PLC tswj lub thawv yuav xa cov lus txib kaw mus rau lub kaw lus ceev ceev los ntawm cov kab hluav taws xob photovoltaic txuas rau txhua lub vaj huam sib luag photovoltaic;Thaum lub zog hluav taws xob raug txiav tawm lossis pib nres thaum muaj xwm txheej ceev, cov khoom siv-theem ceev ceev PLC tswj lub thawv yuav xa cov lus txib txuas mus rau lub kaw lus ceev ceev los ntawm cov kab hluav taws xob photovoltaic kom txiav tawm txhua lub vaj huam sib luag photovoltaic.
Cov txheej txheem kaw ceev ceev PLC tswj lub thawv yog cov cuab yeej siv hauv photovoltaic (PV) systems los pab txhawb kev kaw nrawm nrawm ntawm cov khoom siv.Kev kaw nrawm nrawm yog qhov yuav tsum tau muaj kev nyab xeeb txhawm rau txo qis kev pheej hmoo ntawm hluav taws xob phom sij thaum muaj xwm txheej ceev lossis kev saib xyuas cov haujlwm.
Nov yog qee cov ntsiab lus tseem ceeb hais txog kev tiv thaiv-theem ceev ceev PLC tswj lub thawv:
Lub Hom Phiaj: Lub hom phiaj tseem ceeb ntawm kev tiv thaiv-theem ceev ceev PLC tswj lub npov yog txhawm rau ua kom lub zog kaw nrawm hauv PV system.Kev kaw nrawm yog hais txog kev muaj peev xwm ua kom nrawm nrawm ntawm DC circuits ntawm PV system, txo qhov hluav taws xob ntawm qhov chaw mus rau theem kev nyab xeeb thaum muaj xwm txheej ceev lossis thaum yuav tsum tau ua haujlwm tu.
PLC (Programmable Logic Controller): PLC yog lub khoos phis tawj digital siv los tswj thiab ua haujlwm ntau yam txheej txheem.Nyob rau hauv cov ntsiab lus ntawm lub thawv tswj ceev ceev, PLC tau ua haujlwm los saib xyuas thiab tswj kev kaw nrawm ntawm PV system.Nws txais cov teeb liab los ntawm cov khoom siv sab nraud thiab pib txheej txheem kaw.
Control Box: Lub thawv tswj muaj qhov tsim nyog circuitry, Cheebtsam, thiab interfaces siv lub kaw lus ceev ceev functionality.Nws feem ntau suav nrog cov khoom siv rau kev txais cov teeb liab los ntawm cov khoom siv sab nraud, xws li cov pib kaw nrawm lossis cov hloov pauv thaum muaj xwm txheej ceev, thiab cov khoom tawm los tswj kev kaw ntawm PV system.
Component-Level Shutdown: Ib qho kev tiv thaiv-theem ceev ceev kaw qhov kaw lus tshwj xeeb lossis ntu ntawm PV system, tsis yog kaw tag nrho cov kab ke.Qhov no tso cai rau cov neeg ua haujlwm thaum muaj xwm txheej ceev lossis cov neeg ua haujlwm saib xyuas ua haujlwm nyab xeeb ntawm thaj chaw tshwj xeeb yam tsis muaj kev cuam tshuam rau cov hluav taws xob siab.
Ua raws li Cov Cai thiab Cov Qauv: Cov cai kaw nrawm yog teev nyob rau hauv cov lej hluav taws xob thiab cov qauv, xws li National Electrical Code (NEC) hauv Tebchaws Meskas.Ib qho kev tiv thaiv-theem ceev ceev PLC tswj lub thawv yuav tsum ua raws li cov cai no kom ntseeg tau tias PV system ua tau raws li qhov tsim nyog kev nyab xeeb.
Kev sib xyaw ua ke: Cov khoom siv-theem ceev ceev PLC tswj lub thawv tau muab tso rau hauv tag nrho PV system tswj thiab saib xyuas cov txheej txheem.Nws sib txuas lus nrog lwm cov khoom siv hauv lub cev, xws li inverters lossis kev saib xyuas, los tswj cov txheej txheem kaw nrawm.
Nws yog ib qho tseem ceeb uas yuav tau sab laj nrog tus kws tshaj lij hluav taws xob lossis tus tsim hluav taws xob tsim hluav taws xob PV kom paub meej tias qhov kev xaiv zoo, kev teeb tsa, thiab kev sib koom ua ke ntawm cov khoom siv hluav taws xob ceev ceev PLC tswj lub thawv.Ua raws li cov cai hluav taws xob hauv zos thiab cov cai yuav tsum tau ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm PV system.
Zoo siab txais tos los tham nrog peb rau koj qhov kev thov tshwj xeeb ntawm Rapid Shutdown PLC Control Box
Post lub sij hawm: Aug-10-2023
