The University of Southampton

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

Date:
2014-2018
Themes:
High Voltage Engineering, Solid dielectrics
Funding:
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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