Validation of condition of natural esters

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F16%3A43928991" target="_blank" >RIV/49777513:23220/16:43928991 - isvavai.cz</a>

Result on the web

<a href="http://ieeexplore.ieee.org/document/7530471/" target="_blank" >http://ieeexplore.ieee.org/document/7530471/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/DEMISEE.2016.7530471" target="_blank" >10.1109/DEMISEE.2016.7530471</a>

Result language

angličtina

Original language name

Validation of condition of natural esters

Original language description

Demands on current electrical insulating systems have increasing trend toward tolerance to environmental safe conditions. This trend of course subsequently requires finding a new way in the field of application of materials compatible with the surrounding environment, e.g. easy biodegradable. This applies particularly for electrical insulating liquids used in distribution transformers since their deployment is in large numbers - 50, 000 pieces only in the Czech Republic - are often in areas with increased demands on the environment - urban areas, natural preserves or close water sources. These electrical insulating fluid therefore has excellent electrical insulation properties in addition having another important feature - are biodegradable. Therefore, when eventual unwanted leakage was occurring, they are absorbed by soil bacteria and it is not necessary to perform sanitization of the soil. This is advantage to the petroleum products. Fluids, which are in this area currently in center of legitimate interest, are natural esters. Their introduction to full application will however require the implementation of a number of following studies so that these substances can fully cope with properties of currently used mineral oils. Mineral oils have excellent electrical properties, but they are intolerant to the environment. One of the essential aspects of the verification of the long-term durability of natural esters, namely the rapeseed oil to long term thermal exposure. This verification is necessary for electrical insulation fluids especially because of their operation in transformers, where they become liquid component of the insulating system. The liquid in ransformer are subjected to permanent thermal stresses during operating mode. The aim of this study was therefore to investigate the life time of natural esters and compared it with selected synthetic and mineral oil.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of International Conference on Diagnostic of Electrical Machines and Insulating Systems in Electrical Engineering (DEMISEE 2016)

ISBN

978-1-5090-1249-7

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

85-88

Publisher name

IEEE

Place of publication

Piscataway

Event location

Papradno, Slovensko

Event date

Jun 20, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000383221400019