Zaštita ekrana VN i SN kabela uzemljenih na jednom kraju

master's thesis

• Title (english): Protection of single-point bonded metallic screen of HV i MV cables
• Author: Frane Jelić
• Mentor: Viktor Milardić (mentor)
• Committee member: Viktor Milardić (predsjednik povjerenstva)
• Committee member: Božidar Filipović-Grčić (član povjerenstva)
• Committee member: Goran Grdenić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2022-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Prvi dio rada prikazuje teorijski dio o kabelima. Također, opisani su dijelovi kabela te način na koji je polažu u zemlju i u kojem obliku. Prikazani su neki od visokonaponskih i srednjenaponskih kabela koji su korišteni u daljnjim simulacijama ovoga rada. Opisan je programski paket EMTP.
Drugi dio rada odnosi se na modeliranje VN i SN kabela u EMTP programu. Prikazani su odzivi struje i napona na neuzemljenom i uzemljenom dijelu ekrana kabela uslijed normalnih uvjeta te uslijed poremećaja tj. uslijed kratkih spojeva gdje dolazi do visokih induciranih napona na neuzemljenom kraju ekrana kabela. Stoga se kabel štiti pomoću odvodnika prenapona.

Abstract (english)

The first pat of this work presents the theoretical part about cables. Also, is described the parts of the cable and the way whitch it is laid in the ground and in what form. Some of the high voltage and medium voltage cables used in further simulations of this work are presented. The EMTP software package is described.
The second part of this work refers to the modeling od HV and MV cables in the EMTP program. The current and voltage responses on the ungrounded and grounded part od the cable screen due to normal conditions and due to disturbances, as due to short circuits where high induced voltages occur at the unearthed end of the cable screen are shown. Therefore, the cable is protected by a surge arrester.

• Keywords: VN i SN kabel; ekran kabela; inducirani napon; odvodnik prenapona; EMTP program
• Keywords (english): HV and MV cable; cable screen; induced voltage; surge arrester; EMTP program
• Language: croatian
• URN:NBN: urn:nbn:hr:168:596664
• 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: 2023-01-15 10:24:37