Preneseni prenaponi u visokonaponskim mjernim transformatorima

master's thesis

• Title (english): Transmitted overvoltages in high voltage measuring transformers
• Author: Tin Perković
• Mentor: Ivo Uglešić (mentor)
• Committee member: Ivo Uglešić (predsjednik povjerenstva)
• Committee member: Viktor Milardić (član povjerenstva)
• Committee member: Eduard Plavec (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2021-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Na sekundarne krugove mjernih transformatora priključuje se mjerna i zaštitna oprema dok naponski transformatori velike snage tipično opskrbljuju različite vrste potrošača. Zaštita sekundarnih krugova od prenesenih prenapona ključna je za siguran i kontinuiran rad transformatora. Međunarodni standardi sadrže standardizirane testove koji osiguravaju zadovoljavajuću zaštitu od prenesenih prenapona no njihove testne procedure trenutno su pod revizijom. Detaljna analiza mjernih rezultata za strujne i naponske mjerne transformatore dana je u ovome radu uz poseban naglasak stavljen na naponske transformatore velike snage zbog porasta njihove važnosti u elektroenergetskim postrojenjima.

Abstract (english)

Measuring and protective devices are connected to the secondary circuits of instrument transformers. In addition power voltage transformers typically supply different types of secondary load. Protection of secondary circuits from transmitted overvoltages is crucial to ensure their safety and continuous operation. International standards for instrument transformers contain standardized test for ensuring protection against transmitted overvoltages. However, those requirements are under revision, mostly from a testing standpoint. Detailed analysis of measurement results of transmitted overvoltages in current and voltage instrument transformer is given in this thesis with a special emphasis placed on power voltage transformer due to the increase of their importance in power stations.

• Keywords: preneseni prenaponi; strujni mjerni transformator; naponski induktivni transformator; naponski transformator velike snage; međunarodni standardi
• Keywords (english): transmitted overvoltages; current transformer; inductive voltage transformer; voltage power transformer; international standards
• Language: croatian
• URN:NBN: urn:nbn:hr:168:432427
• 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: 2023-01-13 13:28:10