Nyob rau hauv cov txheej txheem photovoltaic, qhov hluav taws xob hloov hluav taws xob muaj ob lub luag haujlwm tseem ceeb: ib qho yog lub zog hluav taws xob cais tawm, uas txiav cov hluav taws xob sib txuas ntawm photovoltaic module, lub inverter, lub hwj chim faib txee thiab kab sib chaws thaum lub sij hawm installation thiab txij nkawm, thiab muab tus neeg teb xov tooj. nrog rau hauv ib qho chaw nyab xeeb, qhov kev txiav txim no tau ua tiav los ntawm tus neeg teb xov tooj; Qhov thib ob yog kev tiv thaiv kev nyab xeeb, thaum lub tshuab hluav taws xob muaj overcurrent, overvoltage, luv Circuit Court, overtemperature thiab to tam sim no, nws tuaj yeem txiav tawm Circuit Court los tiv thaiv kev nyab xeeb ntawm tib neeg thiab khoom siv. Qhov kev txiav txim no yog pom tau los ntawm kev hloov pauv.

Yog li ntawd, thaum hloov mus txawv tebchaws tshwm sim nyob rau hauv lub photovoltaic system, yog vim li cas yog hais tias tus hloov yuav muaj overcurrent, overvoltage, overtemperature, thiab to tam sim no. Cov nram qab no tsom xam cov kev daws teeb meem rau qhov ua rau ntawm txhua qhov xwm txheej.

1 Ua rau tam sim no

Qhov kev ua txhaum no yog qhov tshwm sim ntau tshaj plaws, qhov kev xaiv ntawm Circuit Court breaker tsawg dhau los yog qhov tsis zoo txaus. Thaum tsim, ua ntej xam qhov siab tshaj plaws tam sim no ntawm Circuit Court. Qhov ntsuas tam sim no ntawm qhov hloov yuav tsum tshaj 1.1 npaug rau 1.2 npaug ntawm qhov siab tshaj plaws tam sim no ntawm lub voj voog. Lub hauv paus kev txiav txim: tsis txhob mus rau lub sijhawm zoo tib yam, thiab tsuas yog mus txawv tebchaws thaum huab cua zoo thiab lub zog ntawm photovoltaic system siab. Kev daws: Hloov lub tshuab hluav taws xob nrog lub ntsuas hluav taws xob loj lossis lub tshuab hluav taws xob hluav taws xob uas muaj kev ntseeg tau zoo.

Muaj ob hom me me Circuit Court breakers, hom C thiab D hom. Cov no yog hom kev mus ncig. Qhov sib txawv ntawm C hom thiab D hom yog qhov sib txawv ntawm luv luv-circuit instantaneous mus txawv tebchaws tam sim no, thiab kev tiv thaiv overload yog tib yam. C-hom sib nqus mus ncig tam sim no yog (5-10) Hauv, uas txhais tau tias nws mus ncig thaum lub sijhawm tam sim no yog 10 npaug ntawm qhov ntsuas tam sim no, thiab lub sijhawm ua haujlwm tsawg dua lossis sib npaug li 0.1 thib ob, uas tsim nyog rau kev tiv thaiv cov khoom qub. D-hom sib nqus mus ncig tam sim no yog (10-20) Hauv, uas txhais tau tias nws mus ncig thaum lub sijhawm tam sim no yog 20 npaug ntawm qhov ntsuas tam sim no, thiab lub sijhawm ua haujlwm tsawg dua lossis sib npaug li 0.1 vib nas this. Nws yog tsim rau kev tiv thaiv cov cuab yeej nrog siab inrush tam sim no. Thaum muaj cov khoom siv hluav taws xob xws li hloov pauv ua ntej thiab tom qab hloov pauv, thiab muaj qhov cuam tshuam tam sim no tom qab lub zog raug txiav tawm, hom D Circuit Court breakers yuav tsum raug xaiv. Yog tias cov kab tsis muaj cov khoom siv inductive xws li transformers, nws raug nquahu kom xaiv hom C Circuit Court breakers.

2 Ua rau muaj hluav taws xob

Qhov kev txhaum no kuj tsis tshua muaj. Muaj qhov ntsuas hluav taws xob nyob nruab nrab ntawm ob theem ntawm lub Circuit Court breaker, feem ntau 250V rau ib tus ncej. Yog tias qhov hluav taws xob ntau dhau, nws tuaj yeem mus. Tej zaum yuav muaj ob qho laj thawj: ib qho yog tias qhov ntsuas hluav taws xob ntawm lub Circuit Court breaker raug xaiv tsis raug; lwm qhov yog tias thaum lub zog ntawm lub tshuab hluav taws xob photovoltaic ntau dua lub zog ntawm cov khoom thauj, lub inverter nce qhov hluav taws xob xa hluav taws xob. Lub hauv paus kev txiav txim: Siv ib tug multimeter los ntsuas qhov qhib Circuit Court voltage, uas tshaj qhov ntsuas voltage ntawm lub Circuit Court breaker. Kev daws: Hloov cov kab hluav taws xob hluav taws xob nrog lub ntsuas hluav taws xob ntau dua lossis cov kab hluav taws xob uas muaj cov kab hlau loj dua kom txo tau cov kab impedance.

3 Ua rau kub

Qhov kev txhaum no kuj tshwm sim. Qhov ntsuas tam sim no tau cim los ntawm lub ntsuas hluav taws xob yog qhov siab tshaj plaws tam sim no uas lub cuab yeej tuaj yeem dhau mus ntev thaum qhov kub thiab txias yog 30 degrees. Tam sim no raug txo los ntawm 5% rau txhua txhua 10 degrees qhov kub thiab txias. Lub Circuit Court breaker kuj yog ib qho hluav taws xob vim muaj kev sib cuag. Muaj ob qhov laj thawj rau qhov kub siab ntawm Circuit Court breaker: ib qho yog qhov tsis zoo ntawm kev sib cuag ntawm lub Circuit Court breaker thiab cable, los yog kev sib cuag ntawm lub Circuit Court breaker nws tus kheej tsis zoo, thiab cov kev tiv thaiv sab hauv yog loj, uas ua rau qhov kub thiab txias. lub Circuit Court breaker nce; lwm qhov yog qhov chaw nyob qhov twg lub Circuit Court breaker raug teeb tsa. Thaum tshav kub kub dissipation tsis zoo.

Lub hauv paus kev txiav txim: Thaum lub Circuit Court breaker nyob rau hauv qhov kev txiav txim, kov nws nrog koj txhais tes thiab xav tias qhov kub thiab txias yog siab dhau lawm, los yog koj pom tau hais tias qhov kub ntawm lub davhlau ya nyob twg yog siab dhau heev lawm, los yog txawm tias kub hnyiab.

Kev daws: rov xaim, lossis hloov lub Circuit Court breaker.

4 Yog vim li cas thiaj li

Kab lossis lwm yam khoom siv hluav taws xob tsis ua haujlwm, lwm yam khoom siv hluav taws xob xau, kab xau, tivthaiv lossis DC kab rwb thaiv tsev puas.

Lub hauv paus kev txiav txim: tsis tshua muaj rwb thaiv tsev ntawm qhov zoo thiab qhov tsis zoo ntawm lub module thiab AC theem xaim, nruab nrab ntawm qhov zoo thiab qhov tsis zoo ntawm lub module, theem xaim thiab hauv av xaim.

Kev daws: kuaj xyuas thiab hloov cov khoom siv thiab cov xov hlau tsis raug.

Thaum ib qho kev mus txawv tebchaws tshwm sim los ntawm kev ua txhaum cai, qhov laj thawj yuav tsum raug pom thiab qhov txhaum tshem tawm ua ntej rov kaw. Kev quab yuam kaw yog txwv tsis pub. Thaum cov hluav taws xob hluav taws xob tawg tawg thiab mus ncig, tus kov yog nyob rau hauv nruab nrab txoj hauj lwm. Thaum rov kaw, tus tuav haujlwm yuav tsum tau txav mus rau hauv qab (txoj haujlwm tawg) kom rov kaw cov txheej txheem kev khiav haujlwm, thiab tom qab ntawd kaw upwards.

Yuav ua li cas xaiv cov khoom tiv thaiv hluav taws xob rau lub tshuab hluav taws xob photovoltaic: Txij li cov khoom siv hluav taws xob photovoltaic tau teeb tsa sab nraum zoov, DC voltage yog siab heev thaum ntau lub voj voog txuas nrog hauv series, thiab cov modules yuav muaj me me ntawm cov xau tam sim no rau hauv av. Yog li ntawd, thaum xaiv ib qho kev hloov pauv, kho qhov xau tam sim no tiv thaiv tus nqi raws li qhov loj ntawm qhov system. Feem ntau, ib qho kev hloov pauv 30mA tsuas yog tsim rau kev teeb tsa hauv ib-theem 5kW lossis peb-theem 10kW system. Yog tias muaj peev xwm dhau, qhov kev tiv thaiv tam sim no yuav tsum tau nce kom tsim nyog.

Yog tias lub tshuab hluav taws xob photovoltaic tau nruab nrog lub tshuab hluav taws xob cais tawm, nws tuaj yeem txo qhov tshwm sim ntawm cov xau tam sim no, tab sis yog tias qhov hluav taws xob sib cais ntawm qhov hluav taws xob tsis raug, lossis muaj teeb meem xau, nws tuaj yeem tawm mus vim qhov tam sim no to.

Sau npe

Ib qho kev hloov pauv mus ncig tshwm sim tshwm sim hauv qhov system photovoltaic. Yog tias nws yog lub chaw nres tsheb fais fab uas tau nruab rau lub sijhawm ntev, qhov laj thawj yuav yog qhov teeb meem ntawm kev xaim hluav taws xob los yog qhov teeb meem kev laus ntawm qhov hloov. Yog tias nws yog lub chaw tsim hluav taws xob tshiab, tej zaum yuav muaj teeb meem xws li kev xaiv tsis raug ntawm cov keyboards, cov kab hluav taws xob tsis zoo, thiab cov hluav taws xob tsis zoo.