- Title
- Practical implementation of a narrowband high frequency distributed model for locating partial discharge in a power transformer
- Creator
- Mitchell, S. D.; Welsh, J. S.; Middleton, R. H.; Phung, B. T.
- Relation
- Electrical Insulation Conference and Electrical Manufacturing Expo, 2007 (EIC/EM EXPO). Proceedings of the Electrical Insulation Conference and Electrical Manufacturing Expo, 2007 (Nashville, TN 22 - 24 October, 2007) p. 127-131
- Publisher Link
- http://dx.doi.org/10.1109/EEIC.2007.4562603
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2007
- Description
- This paper proposes the use of a narrowband high frequency based distributed transformer model for estimating partial discharge location within the winding of an interleaved power transformer. At high frequencies, the residual inductance within a transformer winding becomes significant This inductive interaction generates its own characteristic response which, due to its distributed nature, can be utilized for partial discharge location. The technique proposed here takes advantage of the high frequency nature of a partial discharge and requires measurement at one location only. It also does not require detailed knowledge of the transformer's physical and material specifications. To confirm this approach, practical tests were conducted on a 66 kV/25 MVA interleaved transformer winding. The partial discharge injection was delivered by an oil immersed point-plane 7.5 kV source with the data captured using a current probe on the earth terminated neutral.
- Subject
- partial discharge measurement; power transformer testing; transformer windings; narrowband
- Identifier
- http://hdl.handle.net/1959.13/921001
- Identifier
- uon:9237
- Identifier
- ISBN:9781424404469
- Rights
- Copyright © 2007 IEEE. Reprinted from the Proceedings of the Electrical Insulation Conference and Electrical Manufacturing Expo, 2007. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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