Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Angle Ring Press Board Characteristic in Accordance with Temperature and Humidity for High Voltage Transformer

온도와 습도에 따른 초고압 변압기용 앵글링 프레스보드 특성

  • Suh, Wang Byuck (Department of Mechanical Engineering, College of Mechanical and IT Engineering, Yeungnam University)
  • 서왕벽 (영남대학교 기계IT대학 기계공학부)
  • Received : 2019.11.13
  • Accepted : 2019.11.18
  • Published : 2020.01.01
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Abstract

In this study, to develop angle ring pressboards for high voltage transformers, the radius and thickness are modified under the conditions of temperature and humidity. In particular, a pressboard with a thickness of 6 mm and a radius at the angled part were investigated based on the simulation of the principal stress from the angled optimization profile shape. As a result, by the appropriate application of a higher temperature, the solid insulation can be improved to reduce the moisture content for an optimized profile angle of a high voltage transformer. This also results in the improvement of the safety factor by 25%. It is determined that the electrical insulation properties of pressboards in high voltage transformers can be enhanced by improving their properties.

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References

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