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Details of Grant 

EPSRC Reference: GR/K83281/01
Title: TOWARDS AN ENHANCED HIGH VOLTAGE HOLD-OFF PERFORMANCE OF VACUUM-INSULATED SOLID INSULATORS.
Principal Investigator: Sullivan, Professor JL
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Pre Nexus Migration Ricardo Group Teledyne UK Ltd
Department: Electronic Engineering
Organisation: Aston University
Scheme: Standard Research (Pre-FEC)
Starts: 01 April 1996 Ends: 31 July 1999 Value (£): 168,065
EPSRC Research Topic Classifications:
Power Systems Plant
EPSRC Industrial Sector Classifications:
Energy No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
A pre-requisite for achieving an improved reliability and linearity in many vacuum-insulated electrical devices and systems is a much enhanced performance of the associated high voltage solid insulating structures. To achieve this objective, an investigation is proposed to advance the understanding of the mechanisms responsible for the surface flashover phenomenon that ultimately limits performance. Pulsed field techniques would be used to study the electrical evolution of the discharge process, whilst synchronised fast optical photographic and spectroscopic techniques would record its complementary optical signature.A parallel technical strand draws upon these findings to evolve an optimum insulator design specification based on surface processing, external geometry, triple junction profile and conditioning procedures. The performance of such re-engineered insulating structures would be evaluated under operational device conditions.
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Organisation Website: http://www.aston.ac.uk