Kufunika kwa Chitetezo cha Surge for Energy Storage Systems
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
- Mabatire:
- 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.
- Zonunkhira:
- Convert DC power from the batteries into AC power […]
Kafukufuku Wodziwika wa Kupirira Kukhoza kwa Ophunzira a Mkalasi I pansi pa 10 / 350μs ndi 8 / 20μs Mavuto a Impulse
Zida zoteteza (SPDs) zimayesedwa kuti ziyesedwe pamitsinje yowonongeka makamaka ndi mawonekedwe a 8 / 20 ms ndi 10 / 350 ms. Komabe, ndi kusintha kwa mankhwala a SPD, ntchito ndi kupirira mphamvu za SPD pansi pa mayendedwe oterewa amafunika kufufuza zambiri. Pofuna kufufuza ndi kuyerekezera mphamvu za SPD pansi pa 8 / 20 ms ndi 10 / 350 ms mphepo zamkuntho, kuyesera kumachitika pa mitundu itatu ya iron-oxide varistors (MOVs) yomwe imagwiritsidwa ntchito pa SP Is class. Zotsatira zikuwonetsa kuti ma MOV omwe ali ndi mphamvu zopitirira malire amatha kupirira mphamvu pansi pano ya 8 / 20ms, pomwe pamapeto a 10 / 350ms mpukutu wamakono uli wosiyana. Pansi pa 10 / 350 ms wamasiku, kulephera kwa MOV kumagwirizana ndi mphamvu yogwiritsidwa ntchito pulogalamu imodzi pamutu umodzi. Kusokoneza ndi mawonekedwe aakulu omwe akuwonongeka pansi pa 10 / 350ms wamakono, omwe angatanthauzidwe ngati mbali imodzi ya pulasitiki ya MOV yophatikizapo ndipo pepala la electrode likulepheretsa. Kuchokera kwa ZnO zakuthupi, chifukwa cha flashover pakati pa pepala la electrode ndi ZnO pamwamba, linawonekera pafupi ndi electrode ya MOV.
Zipangizo zamagetsi zoteteza ku opaleshoni (SPDs) zolumikizidwa pamagetsi ochepetsa mphamvu, kulumikizana pama foni ndi maukonde a mauthenga zimayenera kuyesedwa mogwirizana ndi zofuna za IEC ndi IEEE […]
Chiyambi cha Zone ya Chitetezo cha Mphepo (LPZ)
Malo Otetezera Mphezi (LPZ)
Muyeso la IEC, mawu monga mtundu wa 1 / 2 / 3 kapena chipangizo cha 1 / 2 / 3 choteteza chitetezo chimakonda kwambiri. M'nkhani ino, tilongosola lingaliro lomwe liri logwirizana kwambiri ndi mawu apitalo: malo otetezera mphezi kapena LPZ.
Kodi malo otetezera mphezi ndi chiyani ndipo n'chifukwa chiyani zili zofunika?
Lingaliro loteteza chitetezo cha mphezi limachokera ndikufotokozedwa mu IEC 62305-4 muyezo womwe ndi gawo loyimilira padziko lonse lotetezedwa ndi mphezi. Lingaliro la LPZ limakhazikitsidwa ndi lingaliro loti kuchepetsa pang'onopang'ono mphamvu zamagetsi kukhala malo otetezeka kuti zisawononge chipangizocho.
Tiyeni tiwone fanizo loyambira.
Ndiye kodi malo osiyanasiyana otetezera mphezi akutanthauza chiyani?
LPZ 0A: Ndi malo osatetezedwa kunja kwa nyumbayo ndipo amawonekera kuwombera kowongolera mphezi. Mu LPZ 0A, palibe chodzitchinjiriza pazosokoneza ma elekitiropa LEMP (Lightning Electromagnetic Pulse).
LPZ 0B: Mofanana ndi LPZ 0A, imakhalanso kunja kwa nyumba koma LPZ 0B imatetezedwa ndi njira yowatetezera mphezi kunja, kawirikawiri mkati mwa chitetezo cha ndodo. Apanso, palibe chitetezo chotsutsana ndi LEMP.
LPZ 1: Ndi gawo mkati mwa nyumbayi. Pamalo awa, ndi […]
Chipangizo Chotetezera Kumbuyo kwa SPD - Circuit Breaker & Fuse
Monga tikudziwira, chipangizo choteteza chitetezo chidzasokoneza kapena kufika pamapeto pa moyo chifukwa cha maulendo ang'onoang'ono omwe amatsitsimutsidwa, kuthamanga kwamphamvu kokhazikika kapena kupitirirabe. Ndipo pamene chipangizo choteteza chitetezo chikulephera, chingapangitse chikhalidwe chachifupi ndikupanga vuto la chitetezo mu mphamvu. Motero njira yodzitetezera yoyenera kwambiri ikufunika kugwira ntchito pamodzi ndi chipangizo chotetezera.
Nthawi zambiri pali mitundu iwiri ya chipangizo choteteza chitetezo chomwe chimagwiritsidwa ntchito pamodzi ndi SPD kuti chitetezo chosungira: kusweka kwadongosolo ndi fuse. Kotero, kodi ntchito zawo ndi Cons
Deter Breaker
ubwino
- Zitha kugwiritsidwa ntchito mobwerezabwereza ndipo zimachepetsanso ndalamazo.
kuipa
- Khalani ndi dontho lamagetsi ochulukirapo mukakumana ndi opaleshoni pakalipano ndipo potero lidzatsitsa chitetezo cha SPD
Fuse
ubwino
- Zochepa zochepa zopanda kugwira ntchito
- Lower voltage ikugwa pakali pano
- Chigulitsirocho chokha chimakhala chotsika kwambiri makamaka pa nthawi yayitali yomwe ikuchitika
kuipa
- Pambuyo pake, fusetiyo iyenera kusinthidwa ndipo izi ziwonjezere mtengo wogulitsa
Choncho, pakugwiritsa ntchito, zipangizo zonsezi zimagwiritsidwa ntchito malinga ndi momwe zinthu zilili.
Kutengera kwa Chingwe cha Chingwe pa Njira Yotetezera Chipangizo Chowoteteza
Kutengera kwa Chingwe cha Chingwe pa Njira Yotetezera Chipangizo Chowoteteza
Mutu wa kuika kwa SPD sikutchulidwa kawirikawiri m'makambirano athu. Pali zifukwa ziwiri:
- Kukhazikitsa kwa zida zodzitetezera ku opaleshoni kuyenera kuchitikira ndi wamagetsi oyenerera. Sitikufuna kusocheretsa kuti izi ziyenera kuchitidwa ndi ogwiritsa ntchito. Ndipo ngati SPD ili ndi waya wolakwika, ikhoza kuyambitsa ngozi.
- Pali mavidiyo ambiri pa Youtube omwe akuwonetsera momwe angayikitsire chipangizo choteteza chitetezo. Ndi zophweka komanso zosavuta kusiyana ndi kuwerenga malemba.
Komabe pakadali pano, tikuwona kulakwa kwakukulu kwambiri mu kuikidwa kwa SPD, ngakhale kupangidwa ndi akatswiri. Kotero mu nkhaniyi, tikuti tikambirane malangizo ofunikira kwambiri poika chipangizo choteteza chitetezo: kusunga chingwe ngati chachifupi.
N'chifukwa chiyani kutalika kwazitali kuli kofunikira?
Mutha kudzifunsa funso ili. Ndipo nthawi zina timafunsidwa ndi makasitomala kuti bwanji simungapangitse kutalika kwa chingwe cha SPD kutalika? Ngati mupanga kutalika kwa chingwe, ndiye kuti nditha kukhazikitsa SPD pang'ono kutali ndi gulu ladera. Izi ndi zosiyana ndi zomwe wopanga aliyense wa SPD akufuna kuti muchite.
Apa tikukhazikitsa parameta: VPR (Voltage […]
Ntchito ya SPD m'madera akumwamba
Ntchito ya SPD m'madera akumwamba
Monga mchenga wa mdziko lonse kuteteza chitetezo chowonekera, Prosurge ili ndi makampani ambiri padziko lonse lapansi. Mwachitsanzo, tili ndi makasitomala ambiri ku South America komwe kuli wotchuka kwambiri chifukwa cha mtengo wake. Nthawi zina, timakhala ndi makasitomala akutifunsa ife: Tiyenera kukhazikitsa chipangizo choteteza chitetezo m'madera omwe ali pamwamba pa 2000m, kodi chidzakhudza momwe ntchito ya SPD ikugwirira ntchito?
Ichi ndi funso lothandiza kwambiri. Ndipo mu nkhani ino, tikuti tikambirane za mutuwu. Tidzakambirana malingaliro osiyanasiyana ochokera kwa akatswiri osiyanasiyana koma mwachifundo tidzakambirana kuti dera ili likufunikanso kufufuzidwa kotero kuti zomwe timapereka zimangotchulidwa.
Kodi Chapadera Ndi Chiyani pa Kukwera Kwambiri?
Nkhani yachitetezo chachitetezo / chitetezo cha mphezi m'malo okwera yakhala nkhani yothandiza nthawi zonse. Mu ILPS 2018 (International Lightning Protection Symposium), akatswiri oteteza chitetezo alinso ndi zokambirana pamutuwu. Nanga chapadera ndi chiyani ndi malo okwera?
Choyamba, tiyeni tiwone mikhalidwe yayikulu yayikulu ya madera okwera:
- kutentha kwakukulu ndi kusintha kwakukulu;
- kuthamanga kwa mpweya kapena […]
Kutetezedwa Kwanyumba Yonse - Chifukwa Chani ndi Motani
Nyumba Yonse Yopulumuka / Kutetezedwa Kwawo Kwathunthu
Masiku ano, lingaliro lachitetezo chachitetezo cha nyumba yonse kapena chitetezo chokwanira kunyumba layamba kutchuka. Chimodzi mwazifukwa zofunikira ndikuti masiku ano kuli zida zamagetsi zambiri zomwe ndi zotsika mtengo kwambiri koma zowonongeka pamagetsi amagetsi. Akuti nyumba wamba imakhala ndi zopitilira magetsi za USD 15000 zamagetsi komanso zamagetsi zomwe sizitetezedwa ku ma surges. Kuchita opaleshoni nthawi zonse kumatha kusiya zida zamagetsi zamagetsi ndi zamagetsi ndipo ndi zomwe simumafuna.
Kotero mu nkhaniyi, tikuti tikambirane za nkhaniyi: Kutetezedwa kwathunthu kwa nyumba.
N'chifukwa chiyani timafunikira kutetezedwa kwathunthu kwa nyumba?
Kuwoneka ndi ngozi yowopsa kwambiri kwa zipangizo zam'nyumba. Ngati mumakhala m'dera lomwe mumakhala mphezi yambiri, mukhoza kuvutika kale ndi kuwonongeka kumene kumabweretsa. Nawa nkhani zochokera kwa anthu awiri. Kodi zimamveka ngati inu?
Julayi 2016 Tinakumana ndi opaleshoni yamagetsi sabata imodzi yapitayo. Uvuni yathu (bolodi yamagetsi idatentha). Phokoso lathu lazungulira lidatentha, komanso wolandila Dish. Osinthitsa pama foni, […]
Nthano Yowonjezereka Kwambiri Pakusankha Chipangizo Chokhazikitsa Chitetezo
Tonsefe tikudziwa kuti sizingakhale zosavuta kusankha njira yoyenera yotetezera. Chipangizo chokhalira chotetezera sichikufanana ndi foni yamakono yamakono yomwe ndi yosavuta kumvetsa kwa anthu ambiri. Pali kusamvana kwakukulu pakusankha SPD.
Chimodzi mwazosamvetsetseka ndichakuti kukula kwakukulu pakalipano (koyezedwa mu gawo la kA), ndibwino SPD. Koma choyambirira, tiyeni tiwonetsere tanthauzo la kuwonjezeka komwe kulipo. Opaleshoni pakalipano gawo lililonse ndi kuchuluka kwa ma opaleshoni omwe angathe kutsekeka (kudutsa gawo lililonse la chipangizocho) popanda kulephera ndipo kutengera mayeso a IEEE standard 8 × 20 microsecond test waveform. Mwachitsanzo, tikalankhula za 100kA SPD kapena 200kA SPD. Tikunena za kuchuluka kwake.
Kuchuluka kwa mphamvu pakalipano ndi imodzi mwazofunikira kwambiri pa SPD. Imaperekanso muyeso woperekera zida zosiyanasiyana zotetezera. Ndipo opanga SPD akuyenera kuti afotokozere kuchuluka kwa ma SPD awo. Ndipo kwa makasitomala, amvetsetsanso kuti SPD yokhazikitsidwa pakhomo lautumiki iyenera kukhala ndi chiwopsezo chapamwamba poyerekeza […]
Chiwerengero cha Zipangizo Zoteteza Chitetezo
Zomwe Zidatetezedwe Kuchuluka
M'nkhani yam'mbuyomu, tinayambitsa chimodzi mwazigawo za chipangizo choteteza chitetezo, chomwe ndi mtundu kapena kalasi. Mtundu wa 1 / 2 / 3 ndi gulu lofala kwambiri la SPD mwina muyezo wa UL kapena IEC. Mukhoza kubwereza nkhaniyi kudzera mwachitsulo ichi:
Ndipo mu nkhaniyi, tikuti tiyankhule zambiri za zigawo zina zomwe sizinafotokozedwe pa nkhaniyi.
AC SPD & DC / PV SPD
Zachidziwikire, AC SPD ndiyofala kwambiri kuposa DC SPD popeza tonsefe timakhala m'dera lomwe magetsi ambiri amayendetsedwa ndi AC zikomo a Thomas Edison. Mwina ndichifukwa chake IEC 61643-11 yokhayo imagwira ntchito ngati AC yoteteza pakompyuta kwa nthawi yayitali palibe mfundo za IEC zogwiritsidwa ntchito ngati chitetezo cha DC. DC SPD imakhala yotchuka monga kukwera kwa msika wamagetsi wamagetsi ndipo anthu amawona kuti kuyika kwa PV kumakhala kofala chifukwa mphezi zimakonda kupezeka poyera kapena padenga la nyumba. Chifukwa chake kufunikira kwa zida zodzitetezera pakugwiritsa ntchito PV kukukula mwachangu pazaka 10 zapitazi. Gawo la PV ndilodziwika kwambiri […]
Chipangizo choteteza chitetezo: Mau oyamba kwambiri
Chipangizo choteteza Chitetezo
Chipangizo chotchinga (kapena chofupikitsidwa ngati SPD) sichinthu chomwe chimadziwika ndi anthu. Anthu amadziwa kuti mtundu wamagetsi ndi vuto lalikulu mdera lathu momwe zamagetsi kapena zinthu zamagetsi zimagwiritsidwa ntchito. Amadziwa za UPS zomwe zimatha kupereka magetsi osasokonezeka. Amadziwa magetsi okhazikika omwe, monga dzina lake likunenera, amakhazikika kapena kuwongolera magetsi. Komabe anthu ambiri, akusangalala ndi chitetezo chomwe chida choteteza ku opaleshoni chimabweretsa, sazindikira kuti chiliko.
Takhala tikuuzidwa kuyambira paubwana kuti muzimitsa zamagetsi zamagetsi nthawi iliyonse yamkuntho.
Chabwino, mphezi ndi yoopsa komanso yovulaza. Nazi zithunzi zina zomwe zikuwonetsa chiwonongeko chake.
Zotsatira za kuwonetsera uku
Chabwino, izi ndi za mphezi. Kodi mphezi imagwirizana bwanji ndi chipangizo choteteza chitetezo? M'nkhaniyi, tipereka ndemanga yeniyeni pa mutu uwu. Tidzakambilana:
Chitetezo cha mphezi VS Surge Chitetezo: Zogwirizanitsa koma zosiyana
Kuwonjezereka
- Chimachitika n'chiyani
- Chifukwatu chotani
- Zotsatira za kuwonjezeka
Chipangizo choteteza Chitetezo (SPD)
- Tanthauzo
- ntchito
- Mapulogalamu
- Zophatikizira: GDT, MOV, […]