Utjecaj parametara kruga na valni oblik napona prilikom ispitivanja energetskog transformatora udarnim naponom

master's thesis

• Title (english): Influence of Circuit Parameters on Voltage Waveform During Power Transformer Impulse Voltage Testing
• Author: Luka Skender
• Mentor: Juraj Havelka (mentor)
• Committee member: Juraj Havelka (predsjednik povjerenstva)
• Committee member: Ante Marušić (član povjerenstva)
• Committee member: Davor Grgić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Energetski transformatori su najbrojniji strojevi u elektroenergetskom sustavu. Zbog pojave atmosferskih i sklopnih prenapona u elektroenergetskom sustavu transformatore je prije puštanja u pogon potrebno ispitati udarnim naponom kako bi se utvrdilo mogu li izdržati prenapone koji se javljaju u pogonu. Udarni napon proizvodi se Marxovim udarnim generatorom u visokonaponskim laboratorijima. Kako bi se postigao oblik udarnog naponskog vala zadan normom IEC 60060-1 potrebno je odrediti vrijednosti elemenata unutar udarnog kruga. U ovom diplomskom radu je pomoću programskog alata NI Multisim izrađena simulacija ispitivanja iz koje je vidljiv utjecaj pojedinog elementa udarnog kruga na oblik udarnog naponskog vala.

Abstract (english)

Energy transformers are the most common machines in the electric power system. Due to the occurrence of lighting impulse voltage and switching impulse voltage in the electric power system, the transformers should be tested with impulse voltage before being released into drive to determine whether they can withstand the surges occurring in the drive. Impulse voltage is produced by the Marx impulse generator in high-voltage laboratories. In order to achieve the shape of an impulse voltage wave specified by the IEC 60060-1 norm, it is necessary to determine the values of elements inside the impulse circuit. In this paper, a simulation of the test using a program tool NI Multisim shows the impact of each individual element in the impulse circuit on the shape of the impulse voltage wave.

• Keywords: Marxov udarni generator; atmosferski udarni napon; sklopni udarni napon; prenapon; NI Multisim; Glaningerov krug
• Keywords (english): Marx high-voltage impulse generator; lighting impulse voltage; switching impulse voltage; overvoltage; NI Multisim; Glaninger circuit
• Language: croatian
• URN:NBN: urn:nbn:hr:168:772259
• 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: 2019-03-14 00:44:38