The University of Southampton

Study of Surface Discharge Behaviour at the Oil-pressboard Interface of Large Transformers

Date:
2009-2012
Themes:
High Voltage Engineering, Condition monitoring, Liquid dielectrics, Solid dielectrics
Funding:
Ministry of Higher Education, Malaysia and Universiti Teknikal Malaysia Melaka (Chines Scholarship Council), _other

The aim of the research is to investigate and analyse the full discharge events occurring on the oil-pressboard interface that leads to the flow of leakage current. The leakage current is relatively small and insufficient to trip the protection system of a large transformer. The repetition of this kind of discharges could further degrade the barrier board surface. Experimental work to study the characteristics of this leakage current is required to provide understanding and useful information for condition monitoring programs as well as assist manufacturers in improving their design of inter-phase barrier board arrangements. The research is also developing models that are verified against the experimental data.

Primary investigators

Secondary investigator

  • Chilong Jiang

Associated research groups

  • Electrical Power Engineering
  • Electronics and Electrical Engineering
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