Tsiku: Dec-02-2024
Masiku ano, teknoloji yakhala patsogolo pa moyo wathu ndipo kuteteza zipangizo zathu ndi magetsi ndizofunikira kwambiri. Anthu ambiri amaganiza za zida zomwe zimayikidwa pazingwe zamagetsi za AC zikafika pachitetezo cha opaleshoni, koma kufunikira kwa zida zodzitetezera ku DC kwakula kwambiri m'zaka zaposachedwa. Izi ndichifukwa cha kukwera kwamagetsi ongowonjezwdwanso komanso kuwonjezeka kosalekeza kwa zida zoyendetsedwa ndi DC. Zomwe zili pansipa ndi mfundo zogwirira ntchito, kufunikira komanso momwe zida zodzitetezera ku DC zimatetezera makina athu amagetsi.
Zipangizo zodzitchinjiriza za DC zomwe zimadziwika kuti DC SPDs ndi zida zamagetsi zomwe zimakonzedweratu kuti ziteteze zida ndi zida zoyendetsedwa ndi DC kuti zisakhale ndi mphamvu zamagetsi zomwe zimayambitsidwa ndi nthawi yamagetsi kwakanthawi. Kuwomba kwamphezi, kusintha kwamagetsi, kusokoneza kwamagetsi (EMI), kapena kulephera kwamagetsi kumayambitsa ma spikes.
Ntchito yayikulu ya DC Surge Protector ndikuwongolera kuchuluka kwa mphamvu zamagetsi zomwe zimadutsa kumunsi kwa mtsinje ndikulepheretsa mphamvu zochulukirapo kuti zifike ku minced. Chifukwa chake zimathandizira kupewa kuwonongeka kwa zida zovutirapo zomwe zimaphatikizapo mabatire, ma inverters, okonzanso, ndi makina ena ofunikira mkati mwamagetsi a DC.
· Ndi njira yabwino yokhazikitsira, mudzakhala ndi mwayi wophimba zotayika zambiri zomwe zingabwere chifukwa cha spikes. Kuopsa kwa ma spikes awa kumaphatikizapo kuphulika kwa moto, kapena zoopsa za electrocution.
• Chifukwa cha kutukusira kwa kugwiritsa ntchito mphamvu zamagetsi zongowonjezwdwa monga tanenera poyamba, mwachitsanzo; ma turbines amphepo ndi mapanelo a solar photovoltaic (PV). Makinawa nthawi zambiri amapanga magetsi a DC, omwe amafunika kutetezedwa moyenera kuti asatuluke mwachisawawa. Izi zathandizira pempho lapamwamba la zida zoteteza ma opaleshoni a DC.
· Ndi njanji yokhazikika, chomangira cholimba chomangira njanji ndichofunikira, mukulangizidwa kuti mugwiritse ntchito mopanda nkhawa. Ma terminal onse otsatiridwa, omwe ndi ma waya akulu amtundu wa njanji yamabowo ndi olimba komanso osavuta.
· Kuphatikiza apo, pakufunika chitetezo chogwira ntchito ngati zida zamagetsi zambiri, monga ma data, ma telecommunication, ndi magalimoto amagetsi, zimadalira mphamvu ya DC. Zida zamagetsi ndi zida zowonongeka zimatha kuwonongeka kosasinthika, zomwe zimapangitsa kuti pakhale nthawi yotsika mtengo komanso zoopsa zomwe zingachitike ngati chitetezocho sichikwanira.
Ndikofunikira kuyanjana ndi mawonekedwe azinthu; izi zidzakuthandizani kumvetsetsa mankhwala oyenera kugula. Zhejiang Mulang Electric Co., LtdZithunzi za DC SPDndi logo yawo yapadera, yoyendetsedwa ndi MLY1-C40 pa DC1000V ndi pamwamba.
Zipangizo zodzitchinjiriza za DC zimakhala ndi zinthu zosiyanasiyana zomwe zimagwira ntchito limodzi kuti ziwongolere mawotchi apano komanso kuteteza zida zakutsika. Zigawo zikuluzikulu zikuphatikizapo;
- MLY 1 modular
- Metal oxide varistors (MOVs)
- Machubu otulutsa mpweya (GDTs)
- Ma diode ochepetsa mphamvu yamagetsi (TVS diode)
Fuse
Choteteza ichi chimagwiritsidwa ntchito kuteteza mawotchi omwe amatsogozedwa ndi kuyatsa komanso kuwonjezereka kwanthawi yomweyo. Imathandizira kutulutsa mphamvu yayikulu panjira yamagetsi kupita ku Dziko Lapansi lomwe lili pansi kuti lichepetse mphamvu zochulukirapo.
Ma MOV ndi owongolera omwe sadalira ma voltage omwe amabwerera ku ma voltage spikes popereka njira yocheperako kuti apeze mphamvu zowonjezera. Amalowa m'madzi amadzimadzi ndikuwapotoza pansi motetezeka, kuteteza zida zomwe zimagwiritsidwa ntchito.
Ma GDT ndi zida zomata zodzaza ndi mpweya waulesi womwe umayatsa ukakhala ndi mphamvu yayikulu. Amapanga njira yoyendetsera mphamvu yopangira mphamvu, kulimbitsa mphamvu moyenera ndikuwerenga mphamvu kutali ndi zida zobisika.
Ma diode a TVS ndi zida za semiconductor zomwe zimapangidwira kuti zisokoneze mphamvu zanthawi yayitali kutali ndi zida zamagetsi. Amakhala ndi ma voltages otsika kwambiri ndipo amayankha mwachangu ma spikes amagetsi, kutsekereza mphamvu yamagetsi pansi.
Ma fuse amagwira ntchito ngati chitetezo polowetsa madzi osafunikira. Ndi njira zoperekera nsembe zomwe zimasungunula pamene mphamvu yowonjezera iposa mphamvu yake, zomwe zimayimitsa kuwonongeka kwa zipangizo zomwe zimagwirizanitsidwa.
Pali malangizo ogwiritsira ntchito omwe muyenera kuyenda mutagula ma DC SPD awa kuti muteteze zinthu zanu zamagetsi. Izi zikuphatikizapo;
- Gwiritsani ntchito pakati pa 50Hz ndi 60Hz AC
- Ikani pansi pa 2000m pamwamba pa nyanja
- Kutentha kwa chilengedwe -40, +80
- Ndi MLY1, voteji ya terminal sayenera kupitilira mphamvu yake yopitilira ikugwira ntchito
- Kukhazikitsa njanji yowongolera 35mm
Kuphulika kwamagetsi kukuchitika, chipangizo choteteza DC chimazindikira mphamvu yowonjezereka ndikuyambitsa njira yotetezera. Ma MOVs, GDTs, ndi ma TVS diode amapereka njira zotsika kukana kwa mawotchiwa, ndikupatutsa pansi mosamala.
Ma fusewo, kumbali ina, amakhala ngati mzere womaliza wa chitetezo mwa kusokoneza kayendedwe kameneka ngati kupitirira mlingo waukulu wa chipangizocho. Pochepetsa mokwanira ma spikes amagetsi, ma DC SPD amawonetsetsa kuti zida zotsika pansi zimalandila magetsi okhazikika komanso otetezedwa.
Ubwino waukulu wogwiritsa ntchito zida za DC surge fortification ndikusunga zida zolumikizidwa kuchokera pakuwomba kwamagetsi. Utali wa moyo wa zida umakulitsidwa chifukwa chopewa kuwonongeka kwamtengo wapatali komanso nthawi yocheperako kudzera pakupatutsidwa kwamphamvu kwambiri.
Kukwera kwamagetsi kumatha kubweretsa ziwopsezo zazikulu zachitetezo, makamaka m'malo omwe ali pachiwopsezo chachikulu monga malo opangira data kapena malo opangira magalimoto amagetsi. Ma DC SPD amapereka chitetezo chowonjezera pochepetsa kuthekera kwa ngozi zamoto, kugwedezeka kwamagetsi, kapena kulephera kwa zida.
Makina amagetsi amatha kugwira ntchito modalirika ndi zida zodzitchinjiriza za DC ku domicile. Chiwopsezo chochepetsedwa cha kulephera kwadzidzidzi kapena kulephera kumapangitsa kuti magetsi asasokonezeke, zomwe zimapangitsa kuti pakhale zokolola zambiri komanso kukhutira kwamakasitomala.
M'dziko lino momwe zida zamagetsi ndi magetsi ongowonjezedwanso zatenga gawo lofunika kwambiri pamoyo wathu kutiteteza ku zoopsa za kukwera kwamagetsi sizingayesedwe.Zida zodzitetezera za DCamagwira ntchito yofunika kwambiri poteteza zida ndi makina oyendetsedwa ndi DC ku zochitika zanthawi yochepa chabe. Ndikofunikira kumvetsetsa mfundo zogwirira ntchito, komanso zabwino zomwe amapereka chifukwa izi zitha kutsimikizira kuwongolera kodalirika komanso kosatha kwa miyoyo yathu komanso kukhazikitsa magetsi. Ganizirani zogulitsa ma DC SPDs kuti muchepetse kuopsa kwa kukwera kwa magetsi ndikusunga zinthu zathu zamtengo wapatali monga PV system padenga lanu kapena netiweki yovuta kwambiri yolumikizirana.
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