Uphando loPhando loLwazi lokuPhumelela kwee-Class I SPD phantsi kwe-10 / 350μs kunye ne-8 / 20U
Izixhobo ezikhuselekileyo (SPDs) zifuneka ukuba zivavanywe ngaphantsi kwemifudlana yokukhupha imiphumo ngokubanzi kunye neengcamango ze-8 / 20 ms kunye ne-10 / 350 ms. Nangona kunjalo, ngokuphuculwa kweemveliso ze-SPD, ukusebenza kunye nokumelana nokukwazi ukusetyenziswa kwee-SPD phantsi koovimba beemvavanyo eziqhelekileyo kufuna uphando olungakumbi. Ukuze uphande kwaye uqhathanise ukumelana nokukwazi ukumelana nama-SPD ngaphantsi kwe-8 / 20 ms kunye ne-10 / 350 ms ujikelezo lweemitha, iimvavanyo zenziwa kwiintlobo ezintathu ze-varistor-metal oxist (MOVs) ezisetyenziswa kwiiklasi ze-SPD. Iziphumo zibonisa ukuba ii-MOV ezinomlinganiselo ophezulu wokumisela zilungele ukuma amandla phantsi kwe-8 / 20ms yangoku impembelelo, ngelixa isiphelo phantsi kwe-10 / 350ms isisombululo samanje siyahambelana. Ngaphantsi kwe10 / 350 ms wamanje, ukungaphumeleli kwe-MOV kuhambelana nombane otyunjweyo ngeyunithi yunithi ngaphantsi komgudu owodwa. Ukuqhawulwa yinkomfa enkulu yomonakalo phantsi kwe-10 / 350ms yangoku, enokuthi ichazwe njengecala elinye le-encapsulation ye-plastiki ye-MOV kunye nekhadi le-electrode. Ukukhutshwa kwezinto ze-ZnO, ezibangelwa ukutshabalalisa phakathi kwephepha le-electrode kunye ne-ZnO surface, kubonakala kufuphi ne-electrode ye-MOV.
Izixhobo ezikhuselayo zeSurge (SPDs) eziqhagamshelwe kwiinkqubo zamandla asezantsi, uthungelwano nonxibelelwano kunye neenethiwekhi ziyadingeka ukuba zivavanywe phantsi kweemfuno ze-IEC kunye ne-IEEE […]
Isingeniso kuMmandla wokuKhusela uMbane (LPZ)
Indawo yokuKhusela uMbane (LPZ)
Kwimiqathango ye-IEC, imiqathango efana nohlobo lwe-1 / 2 / 3 okanye iklasi ye-1 / 2 / 3 ifowuni yokukhusela ithandwa kakhulu. Kule nqaku, siya kuzisa umxholo ohambelana kakhulu nemimiselo yangaphambili: indawo yokukhusela umbane okanye i-LPZ.
Iyintoni indawo yokukhusela umbane kwaye kutheni kubalulekile?
Umbono wokukhusela umbane uvela kwaye uchazwe kumgangatho we-IEC 62305-4 oyindlela yezizwe ngezizwe yokukhusela umbane. Ingcinga ye-LPZ isekwe kwingcamango yokunciphisa ngokuthe ngcembe amandla ombane kwinqanaba elikhuselekileyo ukuze lingabangeli monakalo kwisixhobo esibulalayo.
Masibone umzekeliso osisiseko.
Ngoko yintoni enye indawo ekhuselekileyo yokukhusela umbane?
I-LPZ 0A: Yindawo engakhuselekanga engaphandle kwesakhiwo kwaye ichanekile ekubetha kombane ngqo. Kwi-LPZ 0A, akukho kukhuselwa ekuphazanyisweni kwe-electromagnetic pulses LEMP (Umbane we-Electromagnetic Pulse).
I-LPZ 0B: NjengoLPZ 0A, iphinde ingaphandle kwesakhiwo kodwa iLPZ 0B ikhuselwe yinkqubo yangaphandle yokukhusela umbane, ngokuqhelekileyo kwindawo yokukhusela yendonga yombane. Kwakhona, akukho nto yokukhusela i-LEMP.
I-LPZ 1: Ngumda ngaphakathi kwesakhiwo. Kule ndawo, […]
Isixhobo sokuKhusela esiKhuselekileyo se-SPD-Isaphulelo seSekethe kunye neFuse
Njengoko siyazi, ukukhusela i-device yokukhusela iya kuhlaziywa okanye kufike ekupheleni kokuphila emva kwexesha ngenxa yokuqhuma okuncinci, ukuqhutywa komzimba oluqinileyo okanye ukuqhubela ngamandla. Yaye xa isistim sokukhusela singaphumeleli, sinokudala imeko yesigqeba esifutshane kwaye kubangele ingxaki yokukhusela kwinkqubo yamandla. Ngaloo ndlela ifowuni yokukhusela i-overcurrent ifunekayo ukuze isebenze kunye kunye nefowuni yokukhusela.
Kukho ngokuqhelekileyo iintlobo ezimbini zedivaysi yokukhusela i-overcurrent esebenzisana kunye ne-SPD yokukhusela ukukhusela: i-circuit breaker kunye nefusethi. Ngoko, yintoni i-Pros and Cons ngokulandelanayo?
Umephuli wojikelezo
eziluncedo
- Unokusetyenziswa ngokuphindaphindiweyo kwaye unciphise iindleko zokugcina.
nezingeloncedo
- Iba nokuhla okukhulu kwevolthi xa ujongene nongxamiseko lwangoku kwaye ke kuya kulithoba inqanaba lokukhusela le-SPD
Fuse
eziluncedo
- Mhlawumbi kunokwenzeka ukungasebenzi
- Umthamo ophantsi ulahla ngoku
- Imveliso ngokwayo ixabiso elibi ngakumbi ngokukodwa kwiimeko ezimfutshane zesekethe zangoku
nezingeloncedo
- Emva kokuba isebenze, i-fuse kufuneka ithathelwe endaweni kwaye yongeza ukwanda kweendleko
Ngoko ngokusebenza, zombini izixhobo zisetyenziswe kuxhomekeke kwimeko ethile.
Impembelelo Ubude beChethri kwiNqanaba loKhuseleko lweDiskhi yokuKhusela
Impembelelo Ubude beChethri kwiNqanaba loKhuseleko lweDiskhi yokuKhusela
Isihloko sofakelo lwe-SPD asiqhelwanga ngokungaqhelekanga kwiingxoxo zethu. Kukho izizathu ezibini:
- Ukufakwa kwesixhobo esikhuselayo sokukhusela kufuneka kuqhutywa ngunombane ofanelekileyo. Asifuni ukulahlekisa ukuba oku kufuneka kwenziwe ngabasebenzisi. Kwaye ukuba i-SPD i-wiring engalunganga, inokubangela ingozi.
- Kukho iividiyo ezininzi kwi-Youtube ezibonisa indlela yokufaka ifowuni yokukhusela. Kulula kakhulu kwaye ilungile kunokuba ufunde imiyalelo yombhalo.
Sekunjalo, siyaqaphela iphutha eliqhelekileyo kwi-SPD yokufakela, kwanokwenziwa ngabafundi. Ngaloo nqaku, siza kuxoxa ngesikhokelo esibalulekileyo ekufakekeni kweso sixhobo sokukhusela: ukugcina ikhefu imfutshane nje ngangokunokwenzeka.
Kutheni kubalulekile ubude bekhebula?
Unokuzibuza lo mbuzo. Kwaye ngamanye amaxesha sibuzwa ngabathengi ukuba kutheni ungenzi ubude bekhebula le-SPD? Ukuba wenza ubude bekhebula, emva koko ndingafaka i-SPD kancinane kude nephaneli yesekethe. Ewe, ngokwahlukileyo kuyo nayiphi na into eyenziwe ngumenzi we-SPD ofuna ukuba uyenze.
Apha sazisa iparameter: VPR (Voltage […]
Isicelo se-SPD kwiindawo eziphakamileyo eziphezulu
Isicelo se-SPD kwiindawo eziphakamileyo eziphezulu
Njengomdlali wamazwe ngamazwe ekukhuselweni okukhuselekileyo, i-Prosurge inomthengi omkhulu kakhulu emhlabeni jikelele. Ngokomzekelo, sinamakhasimende amaninzi eMzantsi Melika apho edume kakhulu kwiindawo zakhe. Ngamanye amaxesha, sinokuthi abathengi babuze kuthi: Sifanele ukufakela isistim sokukhusela kwisixhobo esiphezulu kwi-2000m, ngaba kuya kuchaphazela ukusebenza kwe-SPD?
Ewe, lo ngumbuzo osebenzayo. Kwaye kweli nqaku, siza kuthetha ngalesi sihloko. Siza kuzisa iingcamango ezithile kwiingcali ezahlukeneyo kodwa ngokuqinisekileyo siqaphele ukuba le ndawo isadingeka ihlolwe ngakumbi kwaye ngoko inkcazelo esiyifakayo iyasebenza nje.
Yintoni ekhethekileyo malunga nokuLunga okuphezulu?
Umba wokhuseleko wokukhusela / ukhuselo lombane kwiindawo eziphakamileyo eziphakamileyo bekusoloko kuyisihloko esisebenzayo. Kwi-ILPS 2018 (i-Symposium yokuKhusela ukuKhanya kwiHlabathi jikelele), iingcali zokhuseleko ezikhuselayo zinengxoxo kwesi sihloko. Ke yintoni ekhethekileyo malunga nendawo ephezulu?
Okokuqala, makhe sijonge imozulu yemozulu ephambili yendawo eziphakamileyo:
- ukushisa okuphantsi kunye noshintsho olukhulu;
- uxinzelelo lomoya ophantsi okanye […]
Ukukhuselwa kweNdlu iphela-Kutheni kwaye njani
Ukukhuselwa kweNdlu yoKhuseleko / ukuKhuselwa koKhuseleko lwaseKhaya
Namhlanje, umbono wokukhuselwa kwendlu yonke okanye ukukhuselwa kwekhaya lonke uya usiba uyanda. Esinye sezizathu ezibalulekileyo kukuba namhlanje zininzi kakhulu izixhobo ze-elektroniki ezixabisa kakhulu kodwa zibe sengozini kakhulu kumandla ombane. Kuqikelelwa ukuba indlu ephakathi ineemveliso ezingaphezulu kwe-USD 15000 ze-elektroniki kunye nezombane ezingakhuselekanga kwii-surges. Uhlaselo oluqhelekileyo lokuhlinza lunokushiya zonke izixhobo ze-elektroniki kunye nezombane zikhubazekile kwaye kunjalo awuzukufuna ukuba namava.
Ngoko kweli nqaku, siza kuthetha ngale ngongoma: ukukhusela indlu yonke.
Kutheni sifuna ngokupheleleyo ukukhuselwa kwendlu?
Ukugqithwa yingozi enkulu ngokuqhelekileyo kwizixhobo zasekhaya. Ukuba uhlala kwindawo ephethe umbane oqhekezayo, usenokuba sele uhlaselwa ngumonakalo owenzayo. Nazi amabali avela kumaxhoba amabini. Ngaba kuyafana ngathi?
NgoJulayi ngo-2016 sidibene nokuhlinzwa kwamandla kwiveki ephelileyo. I-oveni yethu (ibhodi ye-elektroniki itshiswe ngaphandle). Isandi sethu esijikelezileyo sitshisiwe ngokunjalo, kunye nesamkeli sethu. Abaguquli kwiifowuni, […]
Inkolelo ye-Surge Capacity Xa ukhetha i-Device Protection Protection Device
Sonke siyazi ukuba akulula ukukhetha icandelo lokukhusela ngokufanelekileyo. Ipharamitha yeso sixhobo sokukhusela asifani neparameter ye-smartphone ecacileyo kwaye kulula ukuyiqonda kubantu abaninzi. Kuninzi ukungaqondani xa ukhetha i-SPD.
Enye yokungaqondani okuqhelekileyo kukuba ubukhulu bokwanda ngoku (ngokulinganiswa kwi-kA kwisigaba ngasinye), ngcono i-SPD. Kodwa okokuqala, masazise ukuba sithetha ntoni ngokuhlinzwa ngoku. Utyando lwangoku kwisigaba ngasinye lelona nani liphezulu loqhaqho langoku elinokutyunyuzwa (ngenqanaba ngalinye lesixhobo) ngaphandle kokusilela kwaye kusekwe kumgangatho we-IEEE standard 8 × 20 microsecond test waveform. Umzekelo, xa sithetha nge-100kA SPD okanye nge-200kA SPD. Sithetha ngobuninzi bayo ngoku.
Ubungakanani bomgangatho okwangoku yenye yeeparamitha ezibaluleke kakhulu ze-SPD. Inikezela ngomgangatho wokuthelekisa isixhobo esikhuselayo sokukhusela ukuhlinzwa. Kwaye abavelisi be-SPD bayacelwa ukuba badwelise ubungakanani bokungena kwe-SPD yabo. Kwaye kumthengi, bayayiqonda into yokuba i-SPD efakwe ekungeneni kwenkonzo kufuneka inesithuba esiphezulu sokwenza umthamo ngokuthelekisa […]
Ulwahlulo lwezixhobo zokuKhuselwa koPhulo
Ukhuselo lweeNkcukacha zoKhuseleko
Kwinqaku elidlulileyo, sazisa esinye sesigaba sokukhusela isixhobo sokukhusela, oko kukuthi, ngohlobo okanye kwiklasi. Uhlobo lwe-1 / 2 / 3 uluhlu oluqhelekileyo lwe-SPD okanye kwi-standard standard ye-UL okanye i-IEC. Unokuyihlolisisa eli nqaku ngekhonkco:
Kwaye kweli nqaku, siza kuthetha ngakumbi malunga nezinye izigaba ezingabonakalwanga kwinqaku elingentla.
I-AC SPD kunye neDC / PV SPD
Ngokucacileyo, i-AC SPD ixhaphake kakhulu kune-DC SPD njengoko sonke sihlala kuluntu apho uninzi lweemveliso zombane zixhotyiswa yi-AC yangoku kuThomas Edison. Mhlawumbi yiyo loo nto i-IEC 61643-11 esemgangathweni isebenza kuphela kwisixhobo esikhuselayo sokukhusela i-AC ixesha elininzi akukho mgangatho usebenzayo we-IEC kwisixhobo sokukhusela. I-DC SPD idume njengokunyuka kweshishini lamandla elanga kwaye abantu baqaphela ukuba ufakelo lwe-PV lixhoba eliqhelekileyo lombane njengoko iqhelekile kwindawo evulekileyo okanye ophahleni lwendlu. Ke isidingo sokufumana izixhobo zokhuselo kwisicelo se-PV sikhula ngokukhawuleza kule minyaka ilishumi idlulileyo. Icandelo le-PV yeyona ixhaphakileyo […]
Isixhobo sokuKhuselwa kwesiCwangciso: Isingeniso esona siqonde kakhulu
Isixhobo sokukhusela isixhobo
Isixhobo sokhuseleko sokukhusela (okanye esifinyeziweyo njenge-SPD) asisiyo imveliso eyaziwa eluntwini. Uluntu luyazi ukuba amandla ombane ayingxaki enkulu kuluntu lwethu apho kusetyenziswa izixhobo zombane ezibuthathaka ngakumbi okanye iimveliso zombane. Bayazi malunga ne-UPS enokubonelela ngombane ongaphazamiseki. Bayayazi i-voltage stabilizer yona, njengoko igama layo libonisa, ukuzinzisa okanye ukulawula umbane. Nangona kunjalo uninzi lwabantu, ukonwabela ukhuseleko oluziswa sisixhobo sokhuseleko, alububoni ubukho balo.
Sele sixelwe oko kwasebuntwaneni ukuba sicime zonke izixhobo zombane xa kukho iindudumo kungenjalo umbane unokuhamba ngaphakathi kwesakhiwo kwaye wonakalise neemveliso zombane.
Ewe, umbane unobungozi kwaye unobungozi. Nantsi imifanekiso ebonisa ukutshatyalaliswa kwayo.
Inkcazo yale ntetho
Ewe, oku kungombane. Umbane uhambelana njani nesixhobo sokukhusela umkhiqizo? Kule nqaku, siza kunika ingxelo ecacileyo kwesi sihloko. Siza kuzisa:
Ukukhuselwa kweMbane Wokhuseleko lweVS Surge Protection: ezihlobene noko kunjalo
Ukunyuka
- Yintoni ehambayo
- Yintoni ebangela ukunyuka
- Imiphumo yokunyuka
Isixhobo sokukhusela (SPD)
- inkcazelo
- itheko
- izicelo
- Izinto eziza kwenziwa: GDT, MOV, […]
Indlela yokukhetha idilesi yokukhusela i-surge (SPD)?
Izixhobo zokukhusela (I-SPD) isetyenziselwa ukukhusela izixhobo zombane malunga ne-surges (i-overvoltages) ebangelwa ngumbane okanye utshintshi lwee-oshishino zokusebenza ezinzima (abaninzi abantu banokukungazibali le nto). Kungathatha imvelaphi yobugcisa xa ukhetha ifowuni ekhuselekileyo yokukhusela njengokuba kukho ubuchwepheshe obuhlukeneyo nemimiselo.
Umgangatho we-IEC 61643 uchaza iintlobo ze-3 zokukhusela izixhobo zokukhusela umbane wamandla ombane.
Uhlobo lwe-1 okanye iCandelo I: Uhlobo lwe-1 SPD inokukhupha umbane okhoyo ngoku kwaye ifakwe kwibhodi lokutshintsha kombane xa isakhiwo sikhuselekile kwinkqubo yokukhusela umbane (intonga yombane, phantsi komqhubi kunye nomhlaba).
Uhlobo lwe-2 okanye iCandelo II: Le divayisi yokukhusela (SPD) yenzelwe ukukhupha ngoku ngokuveliswa ngombane ongabonakaliyo obangela ukuba kuqhutywe umbane kwi-network distribution network. Ngokuqhelekileyo, zifakwe kwibala lokushicilela. Uhlobo lwe-2 SPD i-SPD eyaziwayo kakhulu kwiimarike kunye ne-Prosurge ibanika iziqinisekiso ezahlukeneyo.
Uhlobo lwe-3 okanye iCandelo III: Uhlobo lwe-3 SPD lusetyenziswe ukunciphisa ukugqithisa kwii-terminals zezixhobo ezichukumisayo kwaye ngoko ke kunomlinganiselo okhutshanayo wokukhutshwa kwamandla okwangoku.
I-SPD kufuneka ifakwephi?
Thayipha i-2 ifowuni yokukhusela iya kufakwa […]