ANALYSIS OF THE IMPACT OF THE DEGREE OF MOISTURE AND TEMPERATURE ON THE PARAMETERS SUBSTITUTE SCHEMA PAPER-OIL INSULATION ON THE BASIS OF THE COLE-COLE MODEL
Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2012, Vol 59, Issue 259
Abstract
Transformers belong to the most important group of devices of power networks systems the state of paper-oil insulated transformer to a large extent decides their correct operation. Despite the development of production of new materials, electrical insulation, for example, synthetic papers, most devices still dominate the insulation based on cellulose in combination with mineral oil. Currently, methods for diagnosis of insulation allow energy companies to safely extend the life of power transformers at acceptably low risk of failure. The article describes one of the methods used in the diagnosis insulation paper-oil, ie frequency dielectric spectroscopy – defined abbreviation FDS (Frequency Dielectric Spectroscopy). Based on the measurements was calculated parameters of the Cole-Cole model (εs, ε∞, α, τ). Presents the possibility of using Cole-Cole model parameters, under their suitability to simulate the impact of the degree of moisture and temperature the substitute schema parameters insulation of paper and oil.
Authors and Affiliations
Stefan WOLNY, Artur ADAMOWICZ
Keywords
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