Transformatorska ulja - analiza zahtjeva za kvalitetom i njihov utjecaj na okoliš

undergraduate thesis

• Title (english): Transformer oils - an analysis of their quality requirements and enviromental impacts
• Author: Sandra Divković
• Mentor: Davor Ljubas (mentor)
• Committee member: Goran Krajačić (predsjednik povjerenstva)
• Committee member: Vladimir Soldo (član povjerenstva)
• Committee member: Davor Ljubas (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Energetski i distributivni transformatori čine neizostavan dio elektroenergetskog sustava. Za
njihovo valjano funkcioniranje neophodan je pravilan izbor sredstva za podmazivanje.
Tematika ovog završnog rada upravo su transformatorska (elektroizolacijska) ulja. Kroz
poglavlja koja slijede obrađeni su zahtjevi, vrste, kemijski sastav i mogućnosti poboljšanja
transformatorskih ulja. Dijagnostikom ulja su obuhvaćeni i sa stajališta fizike opisani najčešći
uzroci kvara transformatora. Također, porast ekološke svijesti odrazio se u svim segmentima
industrije i društva pa su tako proizvedena nova biorazgradiva transformatorska ulja. Trend
globalizacije obrađen je kroz poglavlja u kojima je riječ o zakonima, institucijama i normama,
a upravo je taj trend zaslužan i za jedan od novih smjerova razvitka komponenti ulja. Na
posljetku se nalazi poglavlje o novim vrstama i razvoju dielektrika, čiju okosnicu čine
nanofluidi i biljna ulja.

Abstract (english)

Power and distribution transformers form an indispensable part of the power system. For their
proper functioning, a proper choice of lubricant is necessary. The topic of this thesis are
transformer (electrical insulating) oils. In the chapters that follow, requirements, types,
chemical composition and possibilities of improvement of transformer oils are covered. Oil
diagnostics covers the most common causes of transformer failure and describes them from a
physics point of view. Also, the increase in environmental awareness was reflected in all
segments of industry and society, so new biodegradable transformer oils were produced. The
trend of globalization is addressed through chapters dealing with laws, institutions and norms,
and it is clearly that this trend is responsible for one of the new directions in the development
of oil components. At the end, there is a chapter on new types and development of dielectrics,
the backbone of which is nanofluids and vegetable oils.

• Keywords: transformator; transformatorska ulja; dijagnostika; ekološki utjecaj
• Keywords (english): transformer; transformer oils; diagnostics; environmental impact
• Language: croatian
• URN:NBN: urn:nbn:hr:235:041613
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-09-25 09:46:15