Idethi:Dec-02-2024
Ezinsukwini zamanje, ubuchwepheshe buye baba phambili ezimpilweni zethu futhi ukuvikela izinto zethu zikagesi kanye nezinhlelo zikagesi kubaluleke kakhulu. Iningi labantu licabanga ngamadivayisi afakwe ezintanjeni zamandla e-AC uma kuziwa ekuvikelweni kokuhlinzwa, kodwa isidingo samadivayisi okuvikela i-DC sesikhule kakhulu eminyakeni yakamuva. Lokhu kungenxa yokwenyuka kwezinhlelo zamandla avuselelekayo kanye nokwanda okuqhubekayo kwamadivayisi anamandla e-DC. Okuboniswe ngezansi yizimiso zokusebenza, ukubaluleka kanye nendlela imishini yokuvikela i-DC evikela amasistimu ethu kagesi.
· Izinsiza zokuvikela i-DC ezivame ukubizwa ngokuthi ama-DC SPDs zingamathuluzi kagesi ahlelelwe ngaphambili ukuze aqaphe izinto ezisebenza ngamandla e-DC kanye nezakhiwo ezimpondweni zamandla kagesi ezisheshayo ezibangelwa ukuqhubeka kukagesi wesikhashana. Umbani ushaya, ukushintsha ukusebenza, ukuphazanyiswa kwe-electromagnetic (EMI), noma amaphutha okuphakela amandla adala ama-spikes.
· Umsebenzi oyinhloko we-DC Surge Protector ukulawula ubuningi bamandla agelezayo adlulela ezintweni ezisezansi nomfula futhi achezukise amandla amaningi ngokuphepha ku-minced. Ngakho-ke isiza ekuvimbeleni ukulimala okungaba khona ezintweni ezibucayi ezihlanganisa amabhethri, iziguquli, izilungisi, neminye imishini ebalulekile ngaphakathi kwesistimu yamandla ye-DC.
· Ngenqubo yokufaka ehloniphekile, uzobe usesimweni sokumboza ukulahlekelwa okuningi okungaba umphumela wama-spikes. Izingozi zalezi zigilamkhuba zikagesi zihlanganisa ukuqubuka komlilo, noma izingozi zogesi.
· Ngenxa yokuvuvukala kokusetshenziswa kwezinhlelo zamandla avuselelekayo njengoba kuphawuliwe ekuqaleni, isibonelo; izinjini zomoya kanye namaphaneli elanga le-photovoltaic (PV). Lezi zinhlelo ngokuvamile zikhiqiza amandla e-DC, okudingeka avikelwe ngokufanelekile ekuphumeni kwamandla kagesi okungahleliwe. Lokhu kusizile esicelweni esiphezulu samadivayisi okuvikela okuhlinzwa kwe-DC.
· Ngomzila wesitimela ojwayelekile, lesi sibopho esiqinile sokufakwa kwesitimela esinamathela ngokuqinile sibalulekile, uyelulekwa ukuthi usisebenzise ngaphandle kokukhathazeka. Wonke amatheminali ahleliwe, okuyimbobo enkulu yohlobo lwezintambo zesitimela esinentambo iqinile futhi ilula.
· Ngaphezu kwalokho, kunesidingo sokuvikela okusebenzayo okusebenzayo njengamadivayisi kagesi amaningi, njengezikhungo zedatha, amasistimu ezokuxhumana, nezimoto zikagesi, zithembele emandleni e-DC. Ama-elekthronikhi azwelayo namathuluzi angonakala ngendlela engenakulungiseka, okuholela esimeni esibizayo kanye nezingozi ezingaba khona zokuphepha uma ukuntuleka kokuvikela.
Kubalulekile ukusebenzisana nesixhumi esibonakalayo somkhiqizo; lokhu kuzokwenza ukwazi ukuqonda umkhiqizo ofanele ongawuthenga. I-Zhejiang Mulang Electric Co., Ltd. Ikhwalithi yokukhiqizaAma-DC SPDsnophawu lwazo oluhlukile, olunikwe amandla yi-MLY1-C40 ku-DC1000V nangaphezulu.
Amadivayisi okuvikela ama-DC e-DC ahlanganisa izingxenye ezihlukahlukene ezisebenza ndawonye ukuze ziqondise kabusha amandla amanje kanye nokuvikela amadivayisi awela phansi. Izingxenye ezibalulekile zihlanganisa;
- I-MLY 1 modular
- I-Metal oxide varistors (MOVs)
- Amashubhu okukhipha igesi (GDTs)
- Transient voltage suppression diodes (TVS diode)
Ama-Fuse
Lesi sivikeli sokuhlinza sisetshenziselwa ukugada ukukhuphuka okuholwa ukukhanyisa kanye nokweqisa okwenziwa ngokushesha. Isiza ukukhulula amandla amakhulu entanjeni yamandla eya Emhlabeni esemhlabeni ukukhawulela amandla angaphezu kwamandla.
Ama-MOV izilawuli ezingancikile ku-voltage ezingaxhumene ne-voltage eziphindisela kuma-voltage spikes ngokunikeza umkhondo wokubhekana kancane ukuze uthole amandla engeziwe. Zigxilisa umsinga okhuphukayo futhi ziwuchezukise ngokuphepha phansi, zivikele izinto ezisetshenziswayo.
Ama-GDT angamadivayisi avalwe nge-hermetically agcwaliswe ngamagesi avilaphayo enza ionini lapho evezwe kugesi ophezulu. Bakha umzila we-conductive wamandla okusebenza, baqinise amandla ngokuphumelelayo futhi balungise amandla kude nezinto ezisetshenziswayo ezicashile.
Ama-TVS diode angamadivayisi e-semiconductor aklanyelwe ukuphazamisa amandla adlulayo kude nezinto zikagesi ezithambile. Anama-voltage okuphuka aphansi futhi asabela ngokushesha kuma-voltage spikes, avimbe amandla amanje ngokweqile phansi.
Ama-Fuse asebenza njengezivikelo ngokungenela ukugeleza kwamandla angadingekile. Kuyizinqubo zomhlatshelo ezincibilika lapho ukwanda kwamandla kudlula umthamo wazo olinganiselwe, okumisa ukulimala okwengeziwe kumishini exhunyiwe.
Kunemihlahlandlela yomsebenzisi okufanele uyigeleze ngemva kokuthenga lawa ma-DC SPD ukuze ugade izinto zakho zikagesi. Lokhu kubandakanya;
- Yisebenzise phakathi kuka-50Hz no-60Hz AC
- Yifake ngaphansi kwama-2000m ngaphezu kwezinga lolwandle
- Operating imvelo lokushisa -40, +80
- Nge-MLY1, i-voltage ye-terminal akufanele idlule ubukhulu bayo iyaqhubeka nokusebenza
- Ukufakwa kwesitimela esiqondisayo esingu-35mm esijwayelekile
Uma kwenzeka ukuphakama kwe-voltage, idivayisi yokuvikela i-DC surge ithola amandla kagesi amaningi bese ivula indlela yokuvikela. Ama-MOV, ama-GDT, nama-TVS diode ahlinzeka ngezindlela ezimelana kancane nomthamo okhuphukayo, awuphambukise ngokuphephile phansi.
Amafuse, ngakolunye uhlangothi, asebenza njengomugqa wokugcina wokuvikela ngokuphazamisa ukugeleza kwamanje uma weqa isilinganiso esiphezulu sedivayisi. Ngokukhawulela ngokwanele ama-voltage spikes, ama-DC SPD aqinisekisa ukuthi okokusebenza okuphansi komfula kuthola ukunikezwa kwamandla okuzinzile nokuvikelekile.
Inzuzo enkulu yokusebenzisa izinsimbi zokuqinisa i-DC surge ukulondolozwa kwemishini exhunyiwe ekukhuphukeni kwamandla kagesi. Ubude besikhathi sokusebenza kwemishini bunwetshiwe ngenxa yokuvinjelwa komonakalo obizayo kanye nesikhathi sokuphumula ngokuphambukiswa kwamandla amakhulu.
Ukuphakama kwamandla kagesi kungase kudale izingozi ezinkulu zokuphepha, ikakhulukazi ezindaweni ezinobungozi obuphezulu njengezikhungo zedatha noma iziteshi zokushaja izimoto zikagesi. Ama-DC SPD ahlinzeka ngesendlalelo esengeziwe sokuphepha ngokunciphisa amathuba okuba khona kwezingozi zomlilo, ukushaqeka kukagesi, noma ukuhluleka kwemishini.
Amasistimu kagesi angakwazi ukusebenza ngokwethembeka kakhulu ngamadivayisi okuvikela ama-DC e-domicile. Ingozi encishisiwe yokwehluleka okuzumayo noma ukungasebenzi kahle kuqinisekisa ukunikezwa kwamandla okungaphazamiseki, okuholela ekukhiqizeni okuthuthukisiwe nokwaneliseka kwamakhasimende.
Emhlabeni wamanje lapho izinto zikagesi kanye nezinhlelo zamandla avuselelekayo zidlale indima ebalulekile ezimpilweni zethu zokusivikela ezingozini zokwenyuka kwamandla kagesi azinakulinganiswa.Imishini yokuvikela i-DCisebenza njengezingxenye ezibalulekile ekuvikeleni amathuluzi namasistimu anamandla e-DC ezenzakalweni zamandla kagesi wesikhashana. Kubalulekile ukuqonda izimiso zokusebenza, kanye nezinzuzo ezinikezayo njengoba lokhu kungaqinisekisa ukuqondisa okuthembekile nokuhlala isikhathi eside kwezimpilo zethu kanye nokusetha ugesi. Cabangela ukutshala imali kuma-DC SPD ukuze unciphise izingozi ezihlobene nokunyuka kwamandla kagesi futhi ulondoloze izimpahla zethu ezibalulekile njengesistimu ye-PV ophahleni lwakho noma inethiwekhi ebalulekile yezokuxhumana.
Xhumana nathi
