Izbor visokonaponskog udarnog generatora za ispitni laboratorij specijalnih transformatora

professional thesis

• Title (english): High-voltage impulse generator selection for test laboratory of special transformers
• Author: Joško Papić
• Mentor: Ivo Uglešić (mentor)
• Committee member: Viktor Milardić (predsjednik povjerenstva)
• Committee member: Ivo Uglešić (član povjerenstva)
• Committee member: Žarko Janić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; (Department of Energy and Power Systems); Zagreb
• Defense date and country: 2016-11-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering

Abstract

Ispitivanje udarnim naponima energetskih transformatora provodi se kako bi se utvrdilo mogu li ti transformatori izdržati prenapone u elektroenergetskom sustavu. S tom svrhom, međunarodna norma IEC 60076-3 propisuje ispitivanja udarnim naponima koja se kao rutinska, tipska ili specijalna provode na transformatorima u ispitnim laboratorijima. Stoga, ispitni laboratoriji moraju biti opremljeni udarnim generatorima i pripadajućom opremom kojom se mogu proizvesti i mjeriti zahtijevani udarni naponi prema navedenoj normi. U Končar D&ST-u postoje dva udarna generatora kojima se prvenstveno ispituju srednji energetski transformatori, no u planu je i nabava novog udarnog generatora koji bi bio smješten u ispitnom laboratoriju specijalnih transformatora. Taj udarni generator bi se koristio ne samo za ispitivanje specijalnih, već i za ispitivanje distributivnih transformatora. Kako bi se olakšala nabava s tehničke strane, izrađen je model stvarnog udarnog generatora u računalnom programu ATP-EMTP kojime će se moći provjeriti mogućnosti novog udarnog generatora, ali i koji će, u budućnosti, olakšati ispitivanje udarnim naponima.

Abstract (english)

High-voltage lightning and switching impulse testing of power transformers is performed in order to verify that transformers can withstand overvoltages in power system. For this purpose, international standard IEC 60076-3 defines impulse tests which are performed as routine, type and special tests on transformers in high-voltage test laboratories. Therefore, test laboratories have to be equipped with high-voltage impulse generators and auxiliary equipment which is capable of producing and measuring of impulse voltages. In Končar D&ST there are, currently, two high-voltage impulse generators that are mainly used for testing of middle power transformers, but there is, also, a plan to purchase a new high-voltage impulse generator that will be situated in test laboratory of special transformers. This new impulse generator won't be used only for testing of special transformers, but also for testing of distribution transformers. In order to make acquiring of impulse generator from the technical view easier, model of real impulse generator has been made in computer program ATP-EMTP with which it will be possible to check capabilities of new impulse generator and that will also make impulse testing easier in the future.

• Keywords: prenapon; atmosferski i sklopni udarni napon; visokonaponski udarni generator; naponsko djelilo; mjerni shunt; digitalni uređaj za analizu impulsa; računalni program ATP-EMTP
• Keywords (english): overvoltage; lightning and switching impulse voltage; high-voltage impulse generator; voltage divider; measuring shunt; digital impulse analysing system; computer program ATP-EMTP
• Language: croatian
• URN:NBN: urn:nbn:hr:168:359860
• Study programme: Title: Postgraduate specialist Study in Transformers; Study programme type: university; Study level: postgraduate specialist; Academic / professional title: sveučilišni/a specijalist/specijalistica transformatora (sveučilišni/a specijalist/specijalistica transformatora)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2022-07-19 13:24:18