Qhov tseem ceeb ntawm Kev Tiv Thaiv Kev Tiv Thaiv Hluav Taws Xob rau Kev Siv Hluav Taws Xob
Energy storage systems play a vital role in modern electricity grids, enabling the integration of renewable energy sources, improving grid stability, and providing backup power during outages. However, these systems are vulnerable to damage from power surges, which can occur due to lightning strikes, switching operations, or grid disturbances. Surge protection is essential for ensuring the safety, reliability, and longevity of energy storage systems.
Protecting Critical Components
Energy storage systems consist of various critical components, including batteries, inverters, control systems, and monitoring equipment. These components are sensitive to voltage spikes and can be damaged by power surges. For example, batteries are susceptible to thermal runaway and cell degradation if subjected to overvoltage. Inverters, which convert DC power from the batteries into AC power, can malfunction or fail if exposed to surges. Surge protection devices (SPDs) can safeguard these components by diverting excess voltage away from sensitive equipment.
Key Components Susceptible to Surge Damage
- Roj teeb:
- Vulnerable to overvoltage caused by external surges, which can lead to thermal runaway, electrolyte leakage, and cell degradation.
- Internal faults or short circuits within the battery system can also generate high current surges, damaging the battery cells.
- Cov pauv khoom:
- Convert DC power from the batteries into AC power […]
Kev tshawb nrhiav ntawm lub qhov muaj peev xwm ntawm chav kawm I SPDs hauv 10 / 350μs thiab 8 / 20μs Impulse Currents
Cov kev tiv thaiv kab mob kev tiv thaiv (SPDs) yuav tsum raug kuaj xyuas hauv cov impulse tawm tsiv tsuam nrog cov qauv ntawm 8 / 20 ms thiab 10 / 350 ms. Txawm li cas los xij, nrog kev txhim kho SPD khoom, kev ua tau zoo thiab muaj peev xwm ua tau ntawm SPDs nyob rau hauv kev ntsuas kev sim no yuav tsum tau tshawb xyuas ntxiv. Txhawm rau soj ntsuam thiab sib piv nrog lub peev xwm ntawm SPDs hauv 8 / 20 ms thiab 10 / 350 ms impulse currents, cov kev sim raug coj los ntawm peb hom kev hloov hlau-oxide (MOV) uas siv rau chav I SPDs. Cov kev tshwm sim qhia tau hais tias cov MOVs nrog qhov siab tshaj qhov tsis muaj zog muaj kev ruaj siab muaj peev xwm ua tau raws li 8 / 20ms impulse tam sim no, thaum lub sij hawm xaus 10 / 350ms impulse tam sim no yog txawv. Nyob rau hauv 10 / 350 ms tam sim no, qhov tsis ua rau MOV muaj feem xyuam rau lub zog nqus ntawm ib lub tsev ntim hauv ib qho kev ua haujlwm. Crack yog lub ntsiab kev puas tsuaj hauv 10 / 350ms tam sim no, uas tuaj yeem piav raws li ib sab ntawm MOV yas encapsulation thiab daim ntawv electrode tev tawm. Ablation ntawm ZnO khoom, tshwm sim los ntawm flashover ntawm daim ntawv electrode thiab ZnO nto, tshwm nyob ze ntawm MOV electrode.
Cov khoom siv tiv thaiv zoo (SPDs) txuas nrog rau lub zog hluav taws xob qis, kev sib txuas lus thiab xov tooj sib txuas yog xav kom ntsuas raws li kev xav ntawm IEC thiab IEEE […]
Taw qhia rau Tsav Tiv Thaiv Kev Tiv Thaiv (LPZ)
Xob Tiv Thaiv Kev Tiv Thaiv (LPZ)
Hauv kev ntsuas IEC, cov ntsiab lus xws li hom 1 / 2 / 3 lossis hoob 1 / 2 / 3 ntuas tiv thaiv ntaus ntawv yog nrov heev. Nyob rau hauv tsab xov xwm no, peb tab tom yuav ua kom paub lub tswv yim uas yog qhov sib thooj nrog rau cov ntsiab lus dhau los: xob tiv thaiv tsam los yog LPZ.
Txoj kev tiv thaiv kab hluav taws xob zoo li cas thiab yog vim li cas nws tseem ceeb?
Lub tswv yim tiv thaiv xob laim hluav taws xob yog lub hauv paus thiab piav qhia hauv IEC 62305-4 tus qauv uas yog tus tseev tsim ntiaj teb kev tiv thaiv xob laim thaiv. Lub tswvyim LPZ yog ua raws li lub tswv yim ntawm maj mam txo xob laim zog rau theem nyab xeeb kom nws thiaj li tsis ua rau lub davhlau ya nyob twg.
Cia peb pom ib qho piv txwv.
Li ntawd, qhov txawv txawv tiv thaiv tsam txhais li cas?
LPZ 0A: Nws yog thaj chaw tsis muaj kev tiv thaiv sab nraum lub tsev thiab nws raug qhov hluav taws xob tsis ncaj. Hauv LPZ 0A, tsis muaj kev tiv thaiv tiv thaiv electromagnetic cuam tshuam pulses LEMP (Xob Laim Electromagnetic Pulse).
LPZ 0B: zoo li LPZ 0A, nws tseem nyob sab nraum lub tsev tsis tau LPZ 0B raug tiv thaiv los ntawm cov hluav taws xob sab nraud tiv thaiv, feem ntau hauv thaj chaw tiv thaiv ntawm cov laim qws. Ntxiv dua thiab, tsis muaj kev tiv thaiv tawm tsam LemP thiab.
LPZ 1: Nws yog thaj chaw hauv tsev. Ntawm thaj chaw no, nws yog […]
Rov Taug Kev Tiv Thaiv Cov Ntaus rau SPD - Circuit Breaker & Fuse
Raws li peb paub, kev tiv thaiv kev tiv thaiv kev phom sij yuav degrade los yog txawm tuaj mus xaus rau lub neej dhau los vim pheej yig me me, ib qho muaj zog tuaj yeem los yog overvoltage ntev. Thiab thaum muaj kev tiv thaiv ntaus tsis ua hauj lwm, nws yuav tsim ib qho kev mob nkeeg luv luv thiab ua rau muaj teeb meem kev nyab xeeb nyob rau hauv lub zog system. Yog li cov cuab yeej tiv thaiv kev tiv thaiv ntau tshaj yog yuav tsum tau ua hauj lwm ua ke nrog kev tiv thaiv kev tiv thaiv.
Yeej muaj ob hom kev tiv thaiv kev tiv thaiv uas siv ntau tshaj nrog SPD rau kev tiv thaiv kev tiv thaiv: kev sib tsuam thiab kho hluav taws xob. Li ntawd, dab tsi yog lawv cov Pros thiab Cons feem?
Circuit Court Breaker
zoo
- Yuav rov qab siv dua thiab txo tus nqi zog.
tsis zoo
- Muaj qhov ntsuas hluav taws xob ntau dua thaum muaj kev nce siab tam sim no thiab yog li yuav qis dua SPD kev tiv thaiv qib
fuse
zoo
- Tsawg yuav tsis ua haujlwm
- Txo qhov poob qis ntawm qis tshaj tam sim no
- Qhov khoom xwb yog tus nqi zoo tshaj yog tshwj xeeb yog rau luv luv teeb meem tam sim no qhov teeb meem
tsis zoo
- Tom qab nws ua haujlwm, lub fuse tau muab hloov thiab yog li nce nqi
Li ntawd, nyob hauv kev xyaum, ob pab kiag li lawm siv nyob ntawm seb qhov xwm txheej twg.
Qhov cuam tshuam ntawm Cable ntev ntawm Kev Tiv Thaiv Qib Siab Tiv Thaiv Ntaus
Qhov cuam tshuam ntawm Cable ntev ntawm Kev Tiv Thaiv Qib Siab Tiv Thaiv Ntaus
Lub ntsiab lus ntawm kev txhim kho SPD tsis tshua pom hauv peb cov kev sib tham. Muaj ob qho laj thawj no:
- Kev teeb tsa ntawm cov khoom thaiv hluav taws xob tiv thaiv yuav tsum tau ua los ntawm ib tus kws tsim hluav taws xob tsim nyog. Peb tsis xav yuam kev tias qhov no yuav tsum tau ua los ntawm cov neeg siv. Thiab yog tias SPD tsis muaj xaim tsis raug, nws yuav ua rau muaj teeb meem.
- Muaj ntau ntau cov yeeb yaj duab nyob rau Youtube ua qhia yuav ua li cas rau nruab ib qho kev tiv thaiv kev tiv thaiv. Nws yog qhov yooj yim thiab yooj yim dua nyeem ntawv cov lus qhia.
Tiam sis tseem, peb pom tau yuam kev heev hauv kev txhim kho SPD, txawm los ntawm kev ua haujlwm. Yog li nyob rau hauv tsab xov xwm no, peb yuav los sib tham txog ib qho tseem ceeb hauv kev txhim kho kev tiv thaiv kev tiv thaiv: kom lub xov tooj kom luv li sai tau.
Vim li cas cov cable ntev tseem ceeb?
Koj yuav nug koj tus kheej li lo lus nug no. Thiab qee zaum peb nug los ntawm cov neeg siv khoom lag luam tias vim li cas koj tsis tuaj yeem ua rau SPD cov xov tooj ntev? Yog tias koj ua cov cable ntev ntev, tom qab ntawd kuv tuaj yeem nruab SPD me ntsis kom deb ntawm kab kev sib kis. Zoo, qhov ntawd yog qhov fab ntxeev ntawm cov chaw tsim khoom SPD xav kom koj ua.
Ntawm no peb qhia qhov parameter: VPR (Voltage […]
SPD Daim Ntawv Sau Npe hauv High Altitude Cheeb Tsam
SPD Daim Ntawv Sau Npe hauv High Altitude Cheeb Tsam
Raws li ib tug neeg thoob ntiaj teb neeg tiv thaiv kev tiv thaiv ua ntaub ntawv, Prosurge muaj ib tug neeg kim heev heev nyob ib ncig ntawm lub ntiaj teb. Piv txwv, peb muaj ntau tus neeg tuaj yeem nyob hauv South America qhov chaw nto moo rau nws qhov toj siab. Qee lub sij hawm, peb muaj cov neeg tuaj thov peb: Peb yuav tsum txhim kho cov kev tiv thaiv kev tiv thaiv nyob hauv cheeb tsam nrog qhov siab tshaj saum 2000m, nws puas yuav cuam tshuam kev ua tiav ntawm SPD?
Zoo, qhov no yog ib lo lus nug heev. Thiab hauv tsab xov xwm, peb tab tom tham txog lub ntsiab lus no. Peb tab tom yuav nthuav tawm ib co tswv yim los ntawm ntau cov neeg ua haujlwm tsis tau ceeb toom tias qhov chaw no tseem yuav tsum raug tshawb nrhiav ntxiv thiab yog li cov ntaub ntawv peb muaj tam sim no ua hauj lwm xwb.
Dab Tsi Tshwj Xeeb Txog Cov Dav Loj?
Qhov teeb meem ntawm kev tiv thaiv kev tiv thaiv / xob laim tiv thaiv hauv qhov chaw siab tau tas li yog cov ncauj lus tswv yim. Hauv ILPS 2018 (International Lightning Protection Symposium), cov kws tshaj lij kev tiv thaiv kev tiv thaiv kuj tseem muaj kev sib tham txog cov ncauj lus no. Yog li dab tsi tshwj xeeb txog qhov chaw siab?
Ua ntej tshaj plaws, peb saib qhov loj ntawm huab cua ib puag ncig cov yam ntxwv ntawm qhov chaw siab:
- tsawg kub thiab hloov radical;
- tsis tshua muaj cua siab lossis […]
Tag Nrho Cov Tsev Muaj Kev Tiv Thaiv - Vim li cas thiab ua li cas
Whole House Surge Protection / Txhua lub Tsev Kev Tiv Thaiv Kev Tiv Thaiv
Niaj hnub no, lub tswv yim ntawm kev tiv thaiv tsev ib leeg kheej los yog tag nrho tsev neeg kev tiv thaiv kom nrov nrov tau dhau los thiab nrov dua. Ib qho tseem ceeb vim li cas yog tias niaj hnub no muaj ntau yam khoom siv hluav taws xob uas kim heev tab sis tsis tshua nyiam siv hluav taws xob. Nws kwv yees tias lub tsev nruab nrab muaj ntau dua USD 15000 cov khoom siv hluav taws xob thiab hluav taws xob uas tsis muaj kev tiv thaiv zoo los ntawm kev them nyiaj. Kev raug mob hnyav tuaj yeem tawm tag nrho cov khoom siv hluav taws xob thiab hluav taws xob tuag tes tuag taw thiab qhov ntawd yog qhov koj tsis xav tau ua dhau los.
Yog li hauv tsab xov xwm no, peb tab tom yuav tham txog qhov kev kawm no: tag nrho lub tsev tiv thaiv kev tiv thaiv.
Vim li cas peb thiaj xav tau lub tsev tiv thaiv kev tiv thaiv?
Kev poob siab yog ib qho kev txaus ntshai heev rau cov khoom siv hauv tsev. Yog tias koj nyob hauv thaj chaw uas muaj xob laim nquag, koj tuaj yeem raug kev txom nyem los ntawm kev puas tsuaj nws coj. Ntawm no yog cov dab neeg los ntawm ob tug neeg raug. Nws puas zoo ib yam li koj?
Lub Xya Hli 2016 Peb tau pom tias muaj kev siv hluav taws xob ntau ib lub asthiv dhau los. Peb lub qhov cub ua hluav taws xob (hluav taws xob hluav taws xob) hlawv tawm. Peb lub suab hluav taws ib puag ncig kuj hlawv, nrog rau peb tus neeg txais khoom Dish. Cov hloov pauv ntawm tus xov tooj, […]
Qhov Tswvyim ntawm Kev Ua Phem Thaum Xaiv Lub Tiv Thaiv Kev Tiv Thaiv
Peb txhua tus paub tias nws tsis yog ib qho yooj yim kom xaiv txoj kev tiv thaiv kom zoo. Qhov ntsuas ntawm kev tiv thaiv kev tiv thaiv tsis zoo li lub txiaj ntsim ntawm lub smartphone uas yog cuab kev thiab yooj yim to taub rau cov neeg feem coob. Muaj ntau yam tsis to taub thaum xaiv ib qho SPD.
Ib qho ntawm kev tsis sib to taub yog tias qhov muaj peev xwm loj dua tam sim no muaj peev xwm (ntsuas hauv kA ib ntu), SPD zoo dua. Tab sis ua ntej tshaj plaws, cia peb tham dab tsi peb txhais li cas los ntawm kev muaj peev xwm tam sim no. Tshaj tawm ib ntu tam sim no yog qhov ntau ntawm cov txiaj ntsig tam sim no uas tuaj yeem xa mus (los ntawm txhua ntu ntawm lub cuab yeej) yam tsis muaj qhov tsis ua tiav thiab ua raws IEE tus qauv 8 × 20 microsecond kuaj waveform. Piv txwv li, thaum peb tham txog 100kA SPD lossis 200kA SPD. Peb tab tom xa mus rau nws qhov tam sim no muaj peev xwm loj.
Kev muaj peev xwm tam sim no yog ib qho ntawm cov tseem ceeb tshaj plaws rau SPD. Nws muab tus qauv rau suav txawv ntawm cov tiv thaiv qoj ib ce txawv txav. Thiab SPD cov tuam txhab lag luam yuav tsum teev cia cov tam sim no muaj peev xwm ntawm lawv cov SPD. Thiab rau cov qhua tuaj noj mov, lawv kuj nkag siab tias SPD tau teeb tsa ntawm qhov kev pabcuam nkag yuav tsum muaj qhov siab dua tam sim no muaj peev xwm muab piv rau […]
Kev faib tawm ntawm kev tiv thaiv kab mob kev tiv thaiv
Tshaj Tawm Kev Tiv Thaiv Ntaus Ntawv
Nyob rau hauv ib tsab xov xwm dhau los, peb tau qhia txog ib qho ntawm kev tawm tsam kev tiv thaiv ntaus ntawv, uas yog, los ntawm hom lossis hoob kawm. Hom 1 / 2 / 3 yog qhov feem ntau SPD kev cais hauv UL txuj los yog IEC tus qauv. Koj tuaj yeem xyuas cov tshooj no txuas ntawm qhov txuas no:
Thiab hauv tsab xov xwm no, peb tab tom yuav tham ntau ntxiv txog lwm cov kev sib txuas lus uas tsis tau nkag rau hauv tsab xov xwm saum toj no.
AC SPD & DC / PV SPD
Qhov tseeb, AC SPD muaj ntau dua li DC SPD raws li peb txhua tus nyob hauv lub zej zog uas cov khoom hluav taws xob feem ntau siv los ntawm AC tam sim no ua tsaug rau Thomas Edison. Tej zaum yog vim li cas IEC 61643-11 tus qauv tsuas yog siv rau AC surge tiv thaiv cov khoom siv rau lub sijhawm ntev heev uas tsis muaj kev siv IEC tus qauv rau DC surge tiv thaiv cov khoom siv. DC SPD ua nrov nrov raws li qhov sawv ntawm lub hnub ci fais fab kev lag luam thiab cov neeg pom tias PV installation yog cov neeg raug tsim txom ntawm xob laim raws li nws ib txwm nyob hauv thaj chaw qhib lossis hauv vuv vias. Yog li qhov kev xav tau ntawm cov khoom tiv thaiv hluav taws xob rau daim ntawv thov PV yog loj hlob sai heev nyob rau 10 xyoo dhau los PV sector yog qhov muaj feem ntau […]
Tiv Thaiv Kev Tiv Thaiv Lub Neej: Qhov Kev Paub Ntau Yam
Tshaj Tawm Kev Tiv Thaiv
Muaj cov khoom tiv thaiv zoo (los yog sau ua SPD) tsis yog cov khoom lag luam uas paub rau cov pej xeem. Cov pej xeem paub txog lub hwj chim zoo yog qhov teeb meem loj hauv peb lub zej zog uas cov khoom siv hluav taws xob lossis hluav taws xob tau siv ntau thiab ntau dua. Lawv paub txog UPS uas tuaj yeem muab cov hluav taws xob tsis zoo uas tsis txaus ntseeg. Lawv paub txog voltage stabilizer uas, raws li nws lub npe hais, ntsuas lossis tswj qhov ntsuas hluav taws xob. Tsis tau cov neeg feem coob, txaus siab rau kev nyab xeeb uas tiv thaiv kev tiv thaiv nqa khoom, txawm tias tsis paub tias nws muaj sia.
Peb tau qhia txij li menyuam yaus tuaj yeem ntsaws tag nrho cov khoom siv hluav taws xob thaum nag xob nag cua txwv tsis pub xob laim xob laim tam sim no yuav mus ncig sab hauv lub tsev thiab ua kom cov khoom hluav taws xob puas.
Zoo, xob laim yog kev txaus ntshai heev thiab tsim kev puas tsuaj. Nov yog qee cov duab uas qhia txog kev puas tsuaj.
Qhia txog qhov kev nthuav qhia no
Zoo, qhov no yog hais txog kev xob laim. Tshooj li cas txog kev tiv thaiv kev tiv thaiv yam khoom? Nyob rau hauv tsab xov xwm no, peb yuav muab ib qho kev nthuav qhia meej hauv nqe lus no. Peb tab tom yuav ua kom paub:
Xob Tiv Thaiv Kev Vam Tiv thaiv thiab Kev Tiv Thaiv Kev Tiv Thaiv: Muaj feem xyuam txawv
Tshaj tawm
- Dab tsi yog surge
- Dab tsi ua rau kom ntog
- Qhov teebmeem ntawm kev tsuj
Tsav Tiv Thaiv Tiv Thaiv (SPD)
- Lus txhais
- muaj nuj nqi
- daim ntawv sau npe
- Cheebtsam: GDT, MOV, […]