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http://dx.doi.org/10.4313/JKEM.2015.28.8.508

A Study on the Insulating Properties of Pressboard for High Voltage Transformer Applied the Mold of Eddy Current Loss  

Suh, Wang-Byuck (Department of Mechanical Engineering, Yeungnam University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.28, no.8, 2015 , pp. 508-512 More about this Journal
Abstract
Some insulating materials are tested and analyzed with variables to obtain the reliable pressboard which is located to core and coil of high voltage transformer. The high voltage transformer is used in electrical power system and operating reliability. Optimization possibility of pressboard shape including electrical insulation performance could be achieved by analysis simulation. Using insulating pressboard, which is made by mold applied eddy current loss, it could be measured the influences of moisture content for electrical properties. As a result, it is to contribute to improve the performance and ensure the reliability of the pressboard by investigating electrical strength according to the variation oil temperature. In addition pressboard thickness is important design factor to ensure electrical strength in high voltage transformer.
Keywords
Pressboard; Breakdown voltage; Partial discharge; Test chamber; Mold; Eddy current loss; Transformer;
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