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I-Power Arrester Isithombe Esifakiwe
  • Ukubopha Amandla

Ukubopha Amandla

Incazelo emfushane:

Umsebenzi

Isibambisi sixhunywe phakathi kwekhebula nomhlabathi, ngokuvamile ngokuhambisana nezinto ezivikelwe.Umbopheli angakwazi ukuvikela ngokuphumelelayo imishini yokuxhumana.Uma kwenzeka i-voltage engavamile, isibambisi sizosebenza futhi sidlale indima yokuvikela.Uma ikhebula lokuxhumana noma izinto zokusebenza zisebenza ngaphansi kwe-voltage evamile yokusebenza, isibambisi ngeke sisebenze, futhi sithathwa njengesifunda esivulekile phansi.Uma i-voltage ephezulu seyenzekile futhi ukufakwa kwezinto ezivikelwe kusengozini, isibambisi sizothatha isinyathelo ngokushesha ukuze siqondise amandla okushisa aphezulu afinyelela phansi, ngaleyo ndlela abeke umkhawulo we-voltage amplitude futhi avikele ukufakwa kwezintambo zokuxhumana nezinto zokusebenza.Lapho i-overvoltage inyamalala, isiboshwa sibuyela ngokushesha esimweni saso sokuqala, ukuze umugqa wokuxhumana usebenze ngokujwayelekile.

Ngakho-ke, umsebenzi oyinhloko wokubopha ukusika igagasi lokugeleza elihlaselayo futhi unciphise inani le-overvoltage yezinto ezivikelwe ngokusebenzisa umsebenzi wegebe lokukhishwa elihambisanayo noma i-resistor nonlinear, ngaleyo ndlela kuvikela ulayini wokuxhumana kanye nemishini.

Izinqamuli zombani zingasetshenziswa hhayi kuphela ukuvikela ngokumelene nama-voltage aphezulu akhiqizwa umbani, kodwa futhi ukuvikela ngokumelene nokusebenza kwamandla aphezulu.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Ulwazi Oluyisisekelo Lwe-Electric Arrester

Incazelo: Ingakhulula umbani noma zombili isistimu yamandla esebenza ngamandla e-overvoltage, ivikele okokusebenza kukagesi ekugawulweni kwe-overvoltage yesikhashana (i-voltage overvoltage, i-operating overvoltage, i-power frequency transient transient overvoltage shock), futhi inganqamula i-freewheeling ngaphandle kokubangela Isisetshenziswa sikagesi esibangela ukujikeleza okufushane ukuthi indawo yesistimu.

Umsebenzi: Uma i-overvoltage yenzeka, i-voltage phakathi kwamatheminali amabili wesibophi ayidluli inani elishiwo, ukuze izinto zikagesi zingonakaliswe yi-overvoltage;ngemva kokusetshenziswa kwe-overvoltage, uhlelo lungabuyela ngokushesha esimweni esivamile ukuze kuqinisekiswe ukunikezwa kwamandla okuvamile kwesistimu.

Izinkomba eziningana ezihilelekile kumshini wokubopha amandla
(1) Isici se-Volt-second: sibhekisela ebudlelwaneni obuhambisanayo phakathi kukagesi nesikhathi.
(2) I-power frequency freewheeling: isho imvamisa yamandla okushintshana okufushane kwesekethe yamandla egeleza ngemva kokuphela kokukhishwa kwevoltheji yombani noma ukukhishwa kwe-overvoltage, kodwa i-voltage yefrikhwensi yamandla isasebenza kwisibambi.
(3) Ikhono lokuzibuyisela lamandla e-dielectric: ubuhlobo phakathi kwamandla e-dielectric emishini kagesi kanye nesikhathi, okungukuthi, isivinini sokululama emandleni okuqala e-dielectric.
(4) I-voltage elinganiselwe yesibambi: i-voltage enkulu yefrikhwensi yamandla igebe elingamelana nayo ngemva kokuba ifrikhwensi yamandla yamanje iwela uziro okokuqala ngqa, futhi ngeke ibangele ukuthi i-arc iphinde isebenze, eyaziwa nangokuthi i-arc voltage.

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