Aging effect of coconut oil as transformer liquid insulation - Comparison with mineral oil

B. S.H.M.S.Y. Matharage*, M. A.A.P. Bandara, M. A.R.M. Fernando, G. A. Jayantha, C. S. Kalpage

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

Coconut oil has been considered as an alternative choice for power transformer liquid insulation. This paper presents ageing aspects of coconut oil in comparison to that of transformer oil. Wet coconut oil and wet and dry transformer oil was aged in sealed and unsealed conditions at 120°C. Variation of color, interfacial tension, acidity, breakdown voltage and frequency dielectric spectroscopy was observed during different aging period of 2, 4, and 7 weeks. In the aging process, the acidity and conductivity levels of coconut oil increased. However, its breakdown strength was considerably high compared to transformer oil showing a possibility of using as a transformer liquid insulation.

Original languageEnglish
Title of host publication2012 IEEE 7th International Conference on Industrial and Information Systems, ICIIS 2012
DOIs
Publication statusPublished - 8 Nov 2012
Externally publishedYes
Event2012 IEEE 7th International Conference on Industrial and Information Systems - Chennai, India
Duration: 6 Aug 20129 Aug 2012

Publication series

Name2012 IEEE 7th International Conference on Industrial and Information Systems, ICIIS 2012

Conference

Conference2012 IEEE 7th International Conference on Industrial and Information Systems
Abbreviated titleICIIS 2012
Country/TerritoryIndia
CityChennai
Period6/08/129/08/12

Keywords

  • Breakdown Voltage
  • Coconut oil
  • Conductivity
  • Frequency Dielectric Spectroscopy
  • Loss Tangent
  • Permittivity
  • Transformer oil

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