Surge protector yog ib qho tseem ceeb tiv thaiv cov cuab yeej tiv thaiv xob laim thiab kev puas tsuaj ntawm cov hluav taws xob tsis zoo hauv lub zog. Tom qab SPD raug teeb tsa, ntau tus neeg siv yuav muaj lus nug: Puas yuav tsum tau hloov cov khoom tiv thaiv tsis tu ncua?
Cov lus teb yog: nws yuav tsum tau kuaj xyuas, tab sis tsis tas yuav hloov tsis tu ncua rau lub sijhawm teem sijhawm.
Tsis zoo li cov hluav taws xob hluav taws xob, cov khoom siv hluav taws xob- lub xeev yog cov khoom siv tiv thaiv uas siv tau. Nrog rau txhua qhov kev cuam tshuam, nws lub peev xwm tiv thaiv tau maj mam ploj mus, yog li kev nkag siab SPD lub neej thiab lub sijhawm hloov pauv yog qhov tseem ceeb los ua kom muaj kev nyab xeeb ntawm lub zog hluav taws xob.
Vim li cas ho tsis cov surge protectors nyob mus ib txhis?
Cov khoom tseem ceeb ntawm surge protectors feem ntau siv cov khoom siv xws li inverters (MOVs) thiab cov roj tso tawm (GDTs).
Thaum lub sijhawm dhau los ntawm qhov hluav taws xob dhau los tshwm sim hauv daim phiaj hluav taws xob vim yog xob laim, kev hloov hluav taws xob, lossis cov khoom siv hloov tawm, SPD sai sai ua thiab tawm hluav taws xob tawm mus rau hauv av, tiv thaiv cov khoom siv rov qab.
Txhua lub sijhawm muaj kev nce siab, cov khoom siv sab hauv yuav tiv taus qee yam ntawm lub zog, thiab raws li tus naj npawb ntawm cov surges nce, lawv cov kev ua tau zoo yuav maj mam poob. Thaum lub zog sib zog nce mus txog nws qhov kev txwv tsim, SPD poob nws lub peev xwm los tiv thaiv.
Yog li ntawd, SPD yog cov khoom tiv thaiv nrog lub neej muaj txiaj ntsig, tsis yog kev saib xyuas tas mus li - khoom siv dawb.
2.Dab tsi cuam tshuam rau lub neej ntawm SPD?
Lub neej kev pab cuam ntawm surge protectors txawv heev los ntawm ib daim ntawv thov ib puag ncig lwm, feem ntau yog vim muaj cov hauv qab no:
Zaus ntawm xob laim
Hauv cov cheeb tsam uas muaj hluav taws xob siab, SPD tuaj yeem tiv taus hluav taws xob ntau dua thiab muaj hnub nyoog sai dua.
Surge zog
Qhov hluav taws xob loj loj tuaj yeem sib npaug ntawm kaum ob lossis ntau pua ntawm cov xob laim zoo tib yam, ua rau muaj kev puas tsuaj ntau rau SPD.
Cov khoom zoo
SSDs uas ua tau raws li IEC cov qauv thiab siv siab - cov khoom zoo feem ntau muaj peev xwm tawm tau ntau dua thiab ua haujlwm ntev dua.
Grounding system
Kev cog qoob loo zoo tuaj yeem tso tawm lub zog sai sai thiab txo qis SPD siab, thiab cov av tsis zoo tuaj yeem ua rau cov khoom siv aging.
Kev siv ib puag ncig
Cov xwm txheej hnyav xws li kub, av noo, tshuaj tsuag ntsev thiab hmoov av tuaj yeem cuam tshuam kev ua haujlwm ntawm SPD cov khoom siv sab hauv thiab ua rau lawv lub neej ua haujlwm luv.
Yuav ua li cas qhia yog tias surge protector yuav tsum tau hloov?
SPD tsis muaj lub voj voog hloov tsis zoo, thiab qhov tseem ceeb tshaj, nws yog raws li SPD ua haujlwm li cas.
Kev hloov pauv raws sijhawm yog pom zoo nyob rau hauv cov xwm txheej hauv qab no:
xwm txheej qhia qhov rais zaub yuam kev
Tam sim no, feem ntau surge protectors muaj txhua yam qhia txog qhov rais.
Raws li ib txwm muaj:
Ntsuab: Ua haujlwm li qub.
Liab: Kev tiv thaiv module tau ua tsis tiav thiab xav tau kev hloov pauv
Yog tias SPD tau nruab nrog lub ntsaws- hauv module, hloov kev tiv thaiv module tuaj yeem rov qab mus rau kev siv li qub.
Tej thaj chaw deb signaling ceeb toom rau glitches
Hauv cov dej num hauv kev lag luam, ntau SPDs tau nruab nrog cov chaw taws teeb qhia kev sib cuag uas muab cov lus tawm tswv yim rau kev saib xyuas ntawm kev ua haujlwm.
Nyob rau hauv qhov xwm txheej ntawm lub tswb, yuav tsum tau teem caij kuaj xyuas ntawm -.
Tom qab xob laim hnyav heev
Yog tias lub tsev lossis lub tshuab hluav taws xob photovoltaic raug hluav taws xob hnyav, kev sim raug pom zoo txawm tias qhov chaw SPD yog qhov qub.
Txawm hais tias qee qhov SPDs tseem ua haujlwm li qub, lawv cov peev xwm tiv thaiv tseem yuav raug txo qis.
Cov tsos mob txawv txav
Txhob siv thiab hloov tam sim yog tias:
Plhaub rupture
Hlawv cov cim
kev hloov pauv ntawm kev hloov pauv
tsw tsw
Loose los yog hnyav oxidized hlau terminals
Muaj pes tsawg lub surge protector kuaj?
Txawm hais tias tsis muaj lub voj voog hloov tsis zoo, nws raug pom zoo kom tsim kom muaj kev tshuaj xyuas lub sijhawm.
Tshawb xyuas cov lus qhia txog kev saib xyuas hauv qab no:
Cov tsev qub: Tshawb xyuas ib xyoos ib zaug.
Cov tsev lag luam: tshuaj xyuas txhua 6-12 lub hlis.
Kev lag luam thaj chaw: tshuaj xyuas txhua 6 lub hlis.
Photovoltaic fais fab chaw nres tsheb: kev tshuaj xyuas tseem ceeb ua ntej thiab tom qab lub caij ntuj nag xob nag cua.
xob laim siab: nce kev soj ntsuam ntau zaus.
Los ntawm kev tshuaj xyuas tsis tu ncua, SPD kev laus lossis tsis ua haujlwm tuaj yeem kuaj pom lub sijhawm kom tsis txhob muaj kev tiv thaiv tsis zoo.
Yuav saib dab tsi thaum hloov SPD
Hauv kev hloov SPD, cov hauv qab no yuav tsum raug sau tseg:
Xaiv cov khoom uas muaj tib tus naj npawb ntawm cov tsis ua raws li cov qauv lossis kev ua haujlwm zoo dua.
Kev khiav hauj lwm voltage (Uc) yuav tsum sib phim rau qhov system.
Tawm peev xwm (Imax) ua tau raws li qhov xav tau ntawm thaj chaw.
PV systems yuav tsum muaj nplooj siab DC SPD.
Tshem tawm lub hwj chim ua ntej hloov, thiab nug tus kws tshaj lij los ua haujlwm.
Xyuas tias lub hauv paus system ua haujlwm zoo.
Yog tias lub kaw lus tau txuas ntxiv lossis hloov kho dua tshiab, SPD kev teeb tsa yuav tsum tau rov ntsuas dua kom pom tias nws tseem ua tau raws li qhov yuav tsum tau ua.
6. Yuav ua li cas kom ntev lub neej ntawm ib tug surge protectors
Txawm hais tias SPD yog cov khoom siv tau zoo, nws tuaj yeem txuas ntxiv tau zoo los ntawm kev tsim thiab kho kom zoo.
Cov kev ntsuas hauv qab no raug pom zoo:
Xaiv lub siab -SPDs zoo uas ua tau raws li IEC 61643 tus qauv.
Xaiv hom xob laim kom raug raws li qib kev pheej hmoo ntawm xob laim.
Tsim kom muaj ntau- txheej txheej tiv thaiv kev tiv thaiv surge.
Xyuas kom meej tias lub hauv paus system ua raws li cov lus qhia tshwj xeeb.
Shorten SPD thaiv qhov ntev thiab txo cov kab impedance.
Tsis tu ncua xyuas cov xwm txheej ntsuas thiab cov chaw taws teeb teeb liab.
Kev tshawb pom raws sijhawm ntawm kev tiv thaiv kev tiv thaiv tom qab xob laim.
Cov kev ntsuas no tsis tsuas yog txhim kho SPD kev tiv thaiv, tab sis kuj txo cov khoom puas thiab cov nqi tu.
Xaus:
Surge protectors tsis tas yuav tsum tau hloov pauv rau lub neej ua haujlwm ruaj khov, tab sis yuav tsum tau kuaj xyuas tsis tu ncua thiab hloov raws li qhov xwm txheej ntawm cov cuab yeej siv, kev siv ib puag ncig thiab kev cuam tshuam surge. Rau cov tsev nyob, cov tsev lag luam, kev tswj hwm kev lag luam, thiab cov phiaj xwm photovoltaic, nws yog qhov kev tshawb fawb ntau dua los tsim kom muaj kev paub txog SPD thiab kev saib xyuas cov txheej txheem ntau dua li tsuas yog hloov lawv raws sijhawm.
Tsuas yog los ntawm kev xaiv surge protectors nrog txhim khu kev qha kev ua tau zoo thiab ua tau raws li cov qauv thoob ntiaj teb, thiab los ntawm kev txhim kho, hauv av thiab tswj lawv, tuaj yeem ua lub zog ua haujlwm ruaj ntseg thiab ruaj khov nyob rau lub sijhawm ntev.
Cov lus nug nquag
Nqe Lus Nug 1: Yuav ua li cas muaj pes tsawg xyoo ntawm kev tiv thaiv kev tiv thaiv feem ntau kav ntev?
SPD tsis muaj lub neej ua haujlwm ruaj khov thiab feem ntau cuam tshuam los ntawm xob laim tawm tsam, surge zog, khoom zoo thiab kev teeb tsa. siab -SPDs zoo tuaj yeem siv tau ntau xyoo hauv thaj chaw uas muaj cua daj cua dub tsawg; Nyob rau hauv tsis tshua muaj thunderstorms los yog muaj chaw, lawv lifespan yuav luv luv, yog li cov khoom siv raws li txoj cai yuav tsum tau siv, es tsis txhob tsuas yog nyob rau hauv lub xyoo.
Q2: Yog tias qhov qhia txog xwm txheej yog ib txwm muaj thiab cov txiaj ntsig kev xeem ua tau raws li qhov xav tau, feem ntau tsis tas yuav hloov pauv. Txawm li cas los xij, yog tias lub cuab yeej tau ntsib hluav taws xob hnyav, tau siv tau ntau xyoo, lossis nyob rau hauv qhov tseem ceeb ntawm cov hluav taws xob, kev ntsuam xyuas kev tshaj lij raug pom zoo los txiav txim seb nws qhov kev tiv thaiv puas tseem ua tau raws li qhov yuav tsum tau ua.
Q3: Puas yog cov khoom siv hluav taws xob puas yuav cuam tshuam los ntawm kev puas tsuaj hauv cov khoom tiv thaiv hluav taws xob?
Feem ntau SPDs tsis ua haujlwm tsis ncaj qha ua rau lub zog cuam tshuam, tab sis lub kaw lus poob kev tiv thaiv kev muaj peev xwm. Yog tias lwm qhov xob laim tshwm sim los yog overvoltage tshwm sim, cov khoom siv backend raug pom ncaj qha, yog li yog tias kuaj pom SPD malfunctions, hloov lawv sai li sai tau.
Q4: Kuv puas tuaj yeem hloov cov khoom SPD nkaus xwb thiab tsis yog tag nrho cov khoom siv?
Yog hais tias lub pluggable modular SPD siv thiab lub hauv paus tsis zoo thiab ua tau raws li cov chaw tsim khoom, tsuas yog cov kev tiv thaiv module feem ntau yuav tsum tau hloov; Yog tias kev sib xyaw SPD, lub hauv paus lossis lub davhlau ya nyob twg puas lawm, kev hloov pauv hloov pauv tau pom zoo los ua kom muaj kev nyab xeeb thiab txhim khu kev qha ntawm lub kaw lus.