2021-10-07
I-surge protector circuit breaker empeleni yilokho esivame ukukubiza ngokuthi idivayisi yokuvikela ukuhlinza, ebizwa nangokuthi isivikeli sokuhlinzwa kombani.Kuwuhlobo lwemishini noma isekethe enikeza ukuvikelwa kokuphepha kwezisetshenziswa zikagesi ezihlukahlukene, izinsimbi, namasekhethi okuxhumana.Isetshenziselwa ukumunca i-voltage ekhuphukayo noma ephezulu phakathi kwegridi ye-AC ukuze kuqinisekiswe ukuthi okokusebenza noma isekethe eyivikelayo ngeke yonakale.
Isiphakeli sesekethe somvikeli ohlinzayo singakwazi ukuphatha ukukhuphuka kwamandla kagesi noma ama-spikes ezinkulungwane zama-volts, yebo, lokhu kuncike kumapharamitha kanye nokucaciswa kwesivikeli esikhethiwe sokuhlinzwa.Kukhona futhi izivikeli ze-spd surge ezinikezelwe kumakhulu ambalwa ama-volts, kuya ngesimo sokusetshenziswa komsebenzisi.Umvikeli ohlinzayo angakwazi ukumelana nama-voltage aphezulu ngokuphazima kweso, kodwa ubude be-voltage ye-spike abukwazi ukuba bude kakhulu, ngaphandle kwalokho isivikeli sizoshisa futhi sishise ngenxa yokumuncwa kwamandla amaningi.
I-Surge iwuhlobo lokugxambukela kwesikhashana.Ngaphansi kwezimo ezithile, i-voltage esheshayo kugridi yamandla idlula ububanzi be-voltage elinganiselwe evamile.Ngokuvamile, lesi sikhashana ngeke sihlale isikhathi eside, kodwa singase sibe ne-amplitude ephezulu kakhulu.Kungase kube ukuphakama okungazelelwe engxenyeni eyisigidi nje yomzuzwana.Isibonelo, isikhathi sombani, ukunqamula imithwalo ye-inductive, noma ukuxhuma imithwalo emikhulu kuzoba nomthelela omkhulu kugridi yamandla.Ezimweni eziningi, uma okokusebenza noma isekethe exhunywe kugridi yamandla ingenazo izilinganiso zokuvikela ukukhuphuka, kulula ukuthi idivayisi yonakale, futhi izinga lomonakalo lizohlotshaniswa nezinga le-voltage yokumelana nedivayisi.
Ngaphansi kwezimo ezijwayelekile zokusebenza, i-voltage endaweni yokuhlolwa igcinwa isesimweni esizinzile esingu-500V.Kodwa-ke, uma iswishi q inqanyulwa kungazelelwe, kuzovela amandla kagesi aphezulu endaweni yokuhlolwa ngenxa yomphumela wamandla we-electromotive reverse ngenxa yokushintsha okungazelelwe kwamandla e-inductive.
Idivayisi yokuvikela izinga lokuqala ngokuvamile ifakwa emnyango wendlu noma wesakhiwo.Izovikela wonke amathuluzi endaweni yokungena yokungena ekushushisweni ngamasurges.Ngokuvamile, umthamo kanye nevolumu yesivikeli sokuhlinza sezinga lokuqala kokubili Kukhulu kakhulu futhi kuyabiza, kodwa kubalulekile.
Isivikeli sokuhlinzwa sezinga lesibili asisikhulu ngomthamo njengeleveli yokuqala futhi sidonsa amandla amancane, kodwa siyaphatheka kakhulu.Ivamise ukufakwa endaweni yokungena yezinto zikagesi, njengesokhethi, noma ihlanganiswe nangaphambili yebhodi lamandla lamathuluzi kagesi ukuze kuhlinzekwe ikhono lesibili lokuvikela okokusebenza.
Isibalo esilandelayo siwumdwebo olula wohlelo lokufakwa kwedivayisi yokuvikela ukuhlinza:
Kubantu abaningi, kuncane okwaziwayo mayelana nesekethe yokuvikela ukuhlinzwa kwesibili, ngoba iningi labo lihlanganiswe ebhodini lamandla.Okubizwa ngokuthi ibhodi lamandla kuvame ukuphela kokufakwayo kwemishini eminingi kagesi, ngokuvamile i-AC-AC, i-AC-DC yesifunda nayo iyisekhethi exhunywe ngqo kusokhethi.Indima ebaluleke kakhulu yesekethe yokuvikela umbani eklanywe ebhodini lamandla ukuhlinzeka ngokuvikeleka okufika ngesikhathi uma kwenzeka ukuhlinzwa, njengokunqamula umjikelezo noma ukumunca i-voltage yokuqhuma, Yamanje.
Olunye uhlobo lwesekhethi yokuvikela ukuhlinza kwesibili, njenge-UPS (ugesi ongaphazamiseki), okunye ukunikezwa kwamandla okuyinkimbinkimbi kwe-UPS kuzoba nesekhethi eyakhelwe ngaphakathi yokuvikela ukuhlinza, onomsebenzi ofanayo nesivikelo sokuhlinza ebhodini lokuphakela amandla elivamile.
Kukhona umvikeli ohlinzayo, ozonqamula ukunikezwa kwamandla ngesikhathi lapho i-voltage yokuqhuma kwenzeka.Lolu hlobo lwesivikeli sokuhlinza luhlakaniphe kakhulu futhi luyinkimbinkimbi.futhi vele ibiza kakhulu, futhi ayivamisile ukusetshenziswa.Lolu hlobo lwesivikeli sokuhlinza ngokuvamile lwakhiwa inzwa ye-voltage, isilawuli kanye ne-latch.Inzwa kagesi iqapha ngokuyinhloko ukuthi ingabe kukhona ukuguquguquka kokukhuphuka ku-voltage yegridi yamandla.Isilawuli sifunda isignali ye-voltage ekhuphukayo yenzwa kagesi futhi silawula ngesikhathi i-latch njengokuvalwa kwesekethe yokulawula i-actuator uma ibhekwa njengesignali yokuhlinzwa.
Kukhona olunye uhlobo lwesekethe yokuvikela ukuhlinza, enganqamuli isekethe lapho kwenzeka ukuhlinzwa, kodwa ibopha i-voltage yokuhlinzwa futhi imunce amandla okuhlinzwa.Lokhu kuvame ukwakhiwa ebhodini lesifunda, njengokushintsha amasekhethi okuphakela amandla kuzoba nalolu hlobo lwesekethe yokuvikela ukukhuphuka.Isekethe ngokuvamile njengoba kukhonjisiwe esithombeni esingezansi:
I-Surge Protector 1, ngaphesheya komngcele phakathi komugqa obukhoma nolayini ophakathi nendawo, okungukuthi, isekethe yokucindezela imodi ehlukile.Izivikeli zokuhlinza 2 kanye no-3 ngokulandelana zixhunywe nentambo ephilayo emhlabeni kanye nentambo engathathi hlangothi emhlabeni, okuwukucindezela kwemodi evamile.Idivayisi yokuhlinza yemodi yokuhlukanisa isetshenziselwa ukubopha nokumunca amandla kagesi phakathi kwentambo ephilayo nentambo emaphakathi.Ngendlela efanayo, idivayisi yokuhlinzwa yemodi evamile isetshenziselwa ukugoqa i-voltage yokukhuphuka yocingo lwesigaba emhlabeni.Ngokuvamile, kwanele ukufaka isivikelo sokuhlinzwa 1 kumazinga okuhlinzwa angafuni kakhulu, kodwa kwezinye izikhathi ezinzima, ukuvikelwa kwemodi evamile kufanele kwengezwe.
Kunezici eziningi ezingakhiqiza amandla okushisa, ngokuvamile ngenxa yokushaywa kombani, ukushaja kwe-capacitor nokukhipha, amasekhethi anomsindo, amasekhethi ashintshashintshayo, ukuphazamiseka kwe-motor drive, njll. I-voltage yokuqhuma kugridi yamandla ingashiwo ukuthi ikhona yonke indawo.Ngakho-ke, kudingekile kakhulu ukuklama umvikeli ohlinzayo kumjikelezo.
Kuphela nge-propagation medium efanelekile, i-voltage yokuqhuma inethuba lokubhubhisa imishini kagesi.
Intambo kagesi-Ulayini wamandla uyindlela ebaluleke kakhulu neqondile yokusabalalisa ukwanda, ngoba cishe zonke izinto zokusebenza zikagesi zinikwa amandla yizintambo zikagesi, futhi inethiwekhi yokusabalalisa izintambo zikagesi itholakala yonke indawo.
Amaza omsakazo-eqinisweni, umnyango omkhulu wokungena uwuthi, okulula ukwamukela ukushuba okungenantambo noma ukushaywa kombani, okungaphula imishini kagesi ngokuphazima kweso.Uma umbani ushaya uthi, ungena kwisamukeli sefrikhwensi yomsakazo.
I-Alternator-Endimeni ye-automotive electronics, ukuphakama kwamandla kagesi nakho kuzochazwa ngokugcizelela.Ngokuvamile lapho i-alternator inokuguquguquka okuyinkimbinkimbi, kuzokwenziwa i-voltage enkulu yokuqhuma.
I-inductive circuit-lapho i-voltage emikhawulweni yomibili ye-inductor ishintsha ngokuzumayo, i-voltage yokuqhuma ivame ukukhiqizwa.
Akunzima ukuklama isifunda sokuvikela ukuhlinza.Eqinisweni, ukuklama isifunda sokuvikela ukuhlinza esakhelwe ngaphakathi, indlela elula idinga ingxenye eyodwa kuphela, okungukuthi, i-MOV varistor noma i-TVS ye-diode yesikhashana.Njengoba kuboniswe esithombeni esingezansi, abavikeli bokuhlinzwa 1-3 bangaba ama-varistors MOV noma i-TVS.
Kwesinye isikhathi, kuyadingeka kuphela ukuxhuma i-varistor ye-MOV ngokuhambisana phakathi kolayini ongathathi hlangothi wolayini wamandla we-AC ukuze uhlangabezane nezinga le-IEC.Ezinhlelweni eziningi, kuyadingeka ukwengeza umjikelezo wokuvikela ukukhuphuka phakathi kwentambo ephilayo eyiziro kanye nomhlabathi ngesikhathi esifanayo ukuze kuhlangatshezwane nezidingo ezijwayelekile zokuhlinza, isibonelo, imfuneko ingaphezulu kwe-4KV.
1. I-MOV imele i-Metal oxide varistor, i-metal oxide resistor, inani layo lokumelana lizoshintsha ngokuya nge-voltage yonkana kwe-resistor.Ivamise ukusetshenziswa phakathi kwamagridi kagesi we-AC ukuze ibhekane ne-voltage ekhuphukayo.
2. I-MOV iyithuluzi elikhethekile elisekelwe ku-voltage.
3. Uma i-MOV isebenza, izici zayo zifana kancane nama-diode, azinamugqa futhi azifaneleki emthethweni we-Ohm, kodwa izici zayo ze-voltage nezici zamanje ziyi-bidirectional, kuyilapho ama-diode e-unidirectional.
4. Ifana kakhulu ne-TVS diode ye-bidirectional.
5. Uma i-voltage ngaphesheya kwe-varistor ingafinyeleli ku-voltage ye-clamp, isesimweni sesifunda esivulekile.
I-varistor iyisici esibalulekile kumvikeli wokuhlinzwa.Lapho uklama, qiniseka ukuthi iseduze ngangokunokwenzeka ne-fuse ekugcineni kokufaka, njengoba kukhonjisiwe esithombeni esingezansi.Ngale ndlela, kungaqinisekiswa ukuthi i-fuse ingashaywa ngesikhathi lapho ukuqhuma kwamanje kwenzeka, futhi isifunda esilandelayo sisesimweni esivulekile ukuze kugwenywe umonakalo omkhulu noma ngisho nomlilo obangelwa ukuqhuma kwamandla.
I-Dongguan Slocable Photovoltaic Technology Co.,LTD.
Engeza:Guangda Manufacturing Hongmei Science and Technology Park, No. 9-2, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, China
TEL:0769-22010201
