Odvodnici prenapona na 220 kV dalekovodu

master's thesis

• Title (english): 220 kV Line Surge Arresters
• Author: Dean Rupić
• Mentor: Viktor Milardić (mentor)
• Committee member: Viktor Milardić (predsjednik povjerenstva)
• Committee member: Ivo Uglešić (član povjerenstva)
• Committee member: Ivica Pavić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2014-07-09, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Na različite načine mogu biti poremećeni normalni odnosi napona unutar električnih postrojenja. Uglavnom to nastaje radi atmosferskih pražnjenja. Ispad dalekovoda najčešća je posljedica atmosferskog pražnjenja, a uzrok ispada je udar munje u zaštitno uže, stup ili direktni udar u fazne vodiče.
Ovim radom dobiven je jasan uvid u sam princip rada odvodnika prenapona na vodu te na koji način i šta se sve koristi danas. Postupnom analizom pokazano je kako preskok ovisi o amplitudi i strmini struje... More munje, faznim naponima u trenutku udara munje te otporu uzemljenja stupa dalekovoda.
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Abstract (english)

Normal relations within the voltage electrical installations can be disrupted in many different ways. Basically it appears due to lightning. The most common result of lightning is an outage of transmission, and the cause of failure is lightning in a protective rope, pole or a direct blow to the phase conductors. This work gave a clear insight into the working principle of surge arresters and how are they used for. It also analyses the dependence of flashover on the amplitude and steepness of... More lightning current, tower footing resistance and phase voltages at the time of the lightning stroke. Less

• Keywords: Prenapon; metal-oksidni odvodnici prenapona; udar munje; dalekovod; povratni preskok; EMTP simulacija
• Keywords (english): Overvoltage; metal-oxide surge arresters; lightning; transmission; backflashover; EMTP simulation
• Language: croatian
• URN:NBN: urn:nbn:hr:168:745347
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-19 14:01:58