| EPSRC Reference: |
GR/J08898/01 |
| Title: |
THE EXCITATION OF UHF RESONANCES BY PARTIAL DISCHARGES IN GAS INSULATED SUBSTATIONS |
| Principal Investigator: |
Farish, Professor O |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Electronic and Electrical Engineering |
| Organisation: |
University of Strathclyde |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
08 October 1993 |
Ends: |
07 December 1996 |
Value (£): |
154,133
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Energy |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The majority of new substations on the 400kV transmission system of the UK are insulated with SF6 gas at high pressure. While these gas-insulated-substations (GIS) are normally very reliable, internal breakdown can easily be triggered should a small defect be present. Defects in GIS cause partial discharges before complete failure occurs, and they excite the GIS chambers into resonances at ultra high frequencies (UHF). Work at the University fo Strathclyde has been successful in developing means of detecting these and using them to reveal the presence of the defect. However, further development is hampered by an insufficient understanding of the basic mechanisms involved. This project seeks to examine how the discharge energy from different sources is coupled into the resonances, and how these can best be picked up for detection. The effect of changing the gas composition and pressure will also be examined, because if resonances can be obtained from a wide range of sources, the technique could form the basis of a revised commissioning test for new GIS.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.strath.ac.uk |