The University of Southampton

An Investigation into Electrical Degradation Mechanisms within Air-Filled Cavities in Solid Dielectric Materials

High Voltage Engineering, Solid dielectrics
The Royal Thai Government Scholarship

The main aim of this thesis is to experimentally investigate the progressive degradation mechanisms within an air-filled cavity embedded in polymers by PD analysis. The distinct PD characteristics can be analysed to accurately validate the presence of corrosive by-products regarding micro-craters and electrical tree initiation within the cavity wall before the treeing growth progressively propagates towards the whole dielectric between parallel electrodes, leading to total failure.

Primary investigators

Secondary investigators

  • Thanarat Tanmaneeprasert
  • George Callender

Associated research group

  • Electronics and Computer Science
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