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Application of Finite Element Analysis to externally forced water cooled cable circuit ratings

Application of Finite Element Analysis to externally forced water cooled cable circuit ratings
Application of Finite Element Analysis to externally forced water cooled cable circuit ratings
In order to increase the available current carrying capacity of high voltage cables, utilities may employ forced water cooling within power transmission networks to remove the heat from cable groups. For example the transmission network of England and Wales includes externally forced cooled circuits, i.e. cooled by pumping water through pipes buried in the vicinity of high voltage transmission cables. At the present time a simple and expedient computer program is used to rate these circuits. This model is similar to that of Electra 66. To attribute confidence limits to cable ratings attained using this method an extended 2-D heat-transfer FEA model has been constructed to allow the calculation of the cable core temperature for a typical water-cooled three-phase circuit of three singlecore cables buried in flat horizontal arrangement within a backfilled trough. A sensitivity analysis of the model to changes in ac resistance, burial depth, dielectric loss, soil thermal resistivity and surface boundary condition has been performed and is presented.
1-4244-0750-8
67-70
Swaffield, D.J.
31f6f52e-fb48-44f9-99d3-3cbd2539f1b9
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Sutton, S.J.
571c7136-1eb6-44e1-8979-ca0829469a6b
Swaffield, D.J.
31f6f52e-fb48-44f9-99d3-3cbd2539f1b9
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Sutton, S.J.
571c7136-1eb6-44e1-8979-ca0829469a6b

Swaffield, D.J., Lewin, P.L. and Sutton, S.J. (2007) Application of Finite Element Analysis to externally forced water cooled cable circuit ratings. 9th IEEE International Conference on Solid Dielectrics, Winchester, United Kingdom. 07 - 12 Jul 2007. pp. 67-70 .

Record type: Conference or Workshop Item (Paper)

Abstract

In order to increase the available current carrying capacity of high voltage cables, utilities may employ forced water cooling within power transmission networks to remove the heat from cable groups. For example the transmission network of England and Wales includes externally forced cooled circuits, i.e. cooled by pumping water through pipes buried in the vicinity of high voltage transmission cables. At the present time a simple and expedient computer program is used to rate these circuits. This model is similar to that of Electra 66. To attribute confidence limits to cable ratings attained using this method an extended 2-D heat-transfer FEA model has been constructed to allow the calculation of the cable core temperature for a typical water-cooled three-phase circuit of three singlecore cables buried in flat horizontal arrangement within a backfilled trough. A sensitivity analysis of the model to changes in ac resistance, burial depth, dielectric loss, soil thermal resistivity and surface boundary condition has been performed and is presented.

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More information

Published date: 2007
Additional Information: Event Dates: 8 - 13 July 2007
Venue - Dates: 9th IEEE International Conference on Solid Dielectrics, Winchester, United Kingdom, 2007-07-07 - 2007-07-12
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 264253
URI: http://eprints.soton.ac.uk/id/eprint/264253
ISBN: 1-4244-0750-8
PURE UUID: b0090f8d-300a-4057-9af7-56f1c933ddb3

Catalogue record

Date deposited: 03 Jul 2007
Last modified: 20 Nov 2021 07:42

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Contributors

Author: D.J. Swaffield
Author: P.L. Lewin
Author: S.J. Sutton

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