Zuva: Zvita-02-2024
Mumazuva ano, tekinoroji yave pamberi pehupenyu hwedu uye kuchengetedza midziyo yedu uye masisitimu emagetsi kunonyanya kukosha. Vanhu vazhinji vanofunga nezvemidziyo yakaiswa pamagetsi emagetsi eAC kana zvasvika pakudzivirira kwekuvhiya, asi kudiwa kwemidziyo yekudzivirira kweDC kwakawedzera kuwedzera mumakore achangopfuura. Izvi zvinokonzerwa nekukwira kwemasisitimu emagetsi anovandudzwa uye kuenderera mberi kwekuwedzera kweDC powered zvishandiso. Zvinoratidzwa pazasi misimboti yekushanda, kukosha uye kuti DC surge yekudzivirira inochengetedza sei masisitimu edu emagetsi.
· DC surge dziviriro midziyo inowanzozivikanwa seDC SPDs midziyo yemagetsi yakafanogadzirirwa kuchengetedza DC-powered midziyo uye zvimiro kubva anomhanyisa magetsi emagetsi spikes anokonzereswa nekufamba kwenguva kwemagetsi. Iyo mheni inorova, kushandura mashandiro, electromagnetic interference (EMI), kana kukanganisa kwemagetsi kunokonzeresa spikes.
· Basa rekutanga reDC Surge Protector kudzora huwandu hwezvino izvo zvinopfuudzwa kuenda kuzasi kwerukova paraphernalia uye kukanganisa simba rakawandisa zvakachengeteka kune yakachekwa. Saka inobatsira mukudzivirira kukuvara kungangoitika kumidziyo yakaoma inosanganisira mabhatiri, inverters, rectifiers, uye mamwe machina akakosha mukati meDC simba system.
· Nemaitiro akanaka ekuisa, iwe uchave uri munzvimbo yekuvhara yakawanda yekurasikirwa iyo inogona kuguma kubva kune spikes. Njodzi dzeaya magetsi spikes anosanganisira kubuda kwemoto, kana kunyange njodzi dzemagetsi.
· Nekuda kwekuzvimba kushandiswa kwesimba renewable simba zvirongwa sezvambotaurwa, semuenzaniso; mhepo turbines uye solar photovoltaic (PV) mapaneru. Aya masisitimu anowanzo gadzira simba reDC, iro rinoda kuchengetedzwa zvakafanira kubva mukudururwa kwemagetsi. Izvi zvakabatsira kuchikumbiro chepamusoro cheDC yekudzivirira michina.
· Iine njanji inokwirisa, iyi bhandi yakasimba inonamira njanji yekumisikidza yakakosha, unorairwa kuti uishandise isina kunetseka. Yese sequestered terminal, iro rakakura gomba rakarukwa terminal njanji mhando wiring yakasimba uye iri nyore.
· Zvakare, panodiwa kuchengetedzwa kwakanaka kwekuvhiya semidziyo yemagetsi yakawanda, senge data centers, telecommunication system, uye mota dzemagetsi, dzinovimba nesimba reDC. Sensitive zvemagetsi nemidziyo zvinogona kukuvadzwa zvisingagadzirisiki, zvichikonzera kudhura kwenguva uye njodzi dzinogona kuitika dzekuchengetedza kana kusakwana kwekudzivirira.
Izvo zvakakosha kupindirana neyechigadzirwa interface; izvi zvichaita kuti iwe unzwisise chigadzirwa chakakodzera kutenga. Zhejiang Mulang Electric Co., Ltd. Kugadzira mhandoDC SPDsnechiratidzo chavo chakasiyana, chinofambiswa neMLY1-C40 paDC1000V uye pamusoro.
DC surge yekudzivirira michina ine zvinhu zvakasiyana-siyana zvinoshanda pamwechete kutungamira kuvhiya kwazvino uye kudzivirira midziyo yakadzika. Zvikamu zvakakosha zvinosanganisira;
- MLY 1 modular
- Metal oxide varistors (MOVs)
-Machubhu ekuburitsa gasi (GDTs)
- Transient voltage kudzvinyirira diodes (TVS diodes)
Fuses
Iyi yekudzivirira inodzivirira inoshandiswa kuchengetedza kuvhiya kunotungamirwa nemwenje zvakare nekukasira overvoltage. Inobatsira kuburitsa simba rakakura kwazvo patambo yemagetsi kuNyika iri muvhu kudzikamisa simba rinopfuura.
MaMOVs ndeasina mutsara anotsamira magetsi anodzoreredza kune voltage spikes nekupa yakaderera-kutarisana nzira yekuwedzera simba. Ivo vanonyudza surge ikozvino uye vanoitsaudzira zvakachengeteka pasi, vachidzivirira iyo inobatanidzwa midziyo.
GDTs zvigadziriso zvakavharwa zvakazadzwa nemagasi ane usimbe anoita ioni kana akaiswa kune yakakwira voltage. Ivo vanogadzira nzira inofambisa yesimba rekuvhiya, vachinyatsosimbisa simba uye nekuverenga simba kure nemidziyo isina kujeka.
TVS diode zvigadziriso zve semiconductor zvakagadzirirwa kukanganisa simba rinopfuura kure nemagetsi asina kusimba. Ivo vane low breakdown voltages uye vanopindura nekukurumidza kune voltage spikes, vachivharira yakawandisa ikozvino pasi.
Mafusi anoita seanodzivirira nekupinda nekuyerera kweasina basa. Ndidzo nzira dzechibairo dzinonyorovesa kana simba rekuwedzera richipfuura vhoriyamu yaro yakayerwa, zvichimisa kukuvadza kwakawanda kumidziyo yakabatana.
Pane nhungamiro yemushandisi yaunofanirwa kuyerera mushure mekutenga aya eDC SPDs kuchengetedza zvinhu zvako zvemagetsi. Izvi zvinosanganisira;
-Ishandise pakati pe50Hz uye 60Hz AC
- Iise pasi pe2000m pamusoro pegungwa
- Kushanda nharaunda tembiricha -40, +80
-NeMLY1, voltage yeterminal haifanire kudarika iyo yakanyanya kuenderera mberi nekushanda voltage
- Yakajairwa 35mm inotungamira njanji yekumisikidza
Kana kuvhiyiwa kwemagetsi kukaitika, iyo DC yekudzivirira yekudzivirira mudziyo inoona yakawandisa voltage uye inomisa nzira yekudzivirira. Iyo MOVs, GDTs, uye TVS diode inopa yakaderera-inodzivirira nzira dzekuvhiya ikozvino, ichitsaudzira zvakachengeteka pasi.
Mafuse, kune rumwe rutivi, anoita semutsetse wekupedzisira wekudzivirira nekukanganisa kuyerera kwazvino kana ichipfuura chiyero chepamusoro chemudziyo. Nekudzikamisa zvakaringana ma spikes emagetsi, DC SPDs inova nechokwadi chekuti midziyo yepasi inogamuchira yakagadzikana uye yakachengetedzwa magetsi.
Mukana wakakura wekushandisa DC yekuwedzera fortification michina kuchengetedza kwemidziyo yakabatana kubva pakukwira kwemagetsi. Hupenyu hwemichina hunowedzerwa nekuda kwekudzivirira kukuvadza kunodhura uye nguva yekudzikira kuburikidza nekuchinjisa simba rakanyanyisa kure.
Voltage surges inogona kuunza njodzi dzakakura dzekuchengetedza, kunyanya munzvimbo dzine njodzi dzakadai senzvimbo dzedata kana zviteshi zvekuchaja mota dzemagetsi. DC SPDs inopa imwe nhanho yekuchengetedza nekudzikisa mukana wenjodzi dzemoto, kuvhunduka kwemagetsi, kana kutadza kwemidziyo.
Masisitimu emagetsi anogona kuita zvakavimbika zvakanyanya neDC surge yekudzivirira zvishandiso mudomicile. Iyo njodzi yakaderedzwa yekutadza kungoerekana yatadza kana kusashanda zvakanaka inovimbisa kusakanganiswa kwemagetsi emagetsi, zvichitungamira kune yakawedzera chigadzirwa uye kugutsikana kwevatengi.
Munyika yazvino umo midziyo yemagetsi uye masystem emagetsi emagetsi akaita basa rakakosha kuhupenyu hwedu kutichengetedza kubva kunjodzi dzekukwira kwemagetsi hazvigone kuyerwa.DC surge kudzivirira zvishandisoinoshanda sezvikamu zvakakosha mukudzivirira DC-powered midziyo uye masisitimu kubva kune zvenguva pfupi voltage zviitiko. Izvo zvakakosha kuti unzwisise misimboti yekushanda, uye mabhenefiti avanopa sezvo izvi zvinogona kuvimbisa yakavimbika uye inogara kwenguva refu manejimendi ehupenyu hwedu uye kuseta magetsi. Funga nezvekudyara muDC SPDs kudzikamisa njodzi dzine chekuita nekukwira kwemagetsi uye kuchengetedza zvinhu zvedu zvakakosha sePV system padenga rako kana network yakakosha yenharembozha.
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