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Identification of multiple partial discharge sources in high voltage transformer windings

Identification of multiple partial discharge sources in high voltage transformer windings
Identification of multiple partial discharge sources in high voltage transformer windings
Partial discharge (PD) analysis is an important tool for assessing the lifespan of power equipment especially in cables and high voltage (HV) transformers. Different PD sources have different effects on the condition and performance of power equipment insulation system. Therefore, the ability to identify different PD sources is a great interest for both system utilities and equipment manufacturers. Hence, an experiment has been designed at the Tony Davies High Voltage Laboratory, University of Southampton to access the methodologies for the identification of multiple PD sources within a HV transformer windings. Previous work at Southampton developed a non-linear based technique that facilitates identification of the location of a PD source within an interleaved winding. This project is concerned with the feasibility of locating several sources simultaneously based only on measurement data from wideband RFCTs placed at the neutral to earth point and the bushing tap-point to earth. Initial results from a simple experiment are presented and development of an analytical approach described.
188-191
Nik Ali, N.H.
91f9aa04-0cd9-4d62-896f-97584753886d
Hunter, J.A.
dae3e13b-a97e-4e81-a617-20ab6965da3c
Rapisarda, P.
79efc3b0-a7c6-4ca7-a7f8-de5770a4281b
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Nik Ali, N.H.
91f9aa04-0cd9-4d62-896f-97584753886d
Hunter, J.A.
dae3e13b-a97e-4e81-a617-20ab6965da3c
Rapisarda, P.
79efc3b0-a7c6-4ca7-a7f8-de5770a4281b
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e

Nik Ali, N.H., Hunter, J.A., Rapisarda, P. and Lewin, P.L. (2014) Identification of multiple partial discharge sources in high voltage transformer windings. 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Des Moines, United States. 19 - 22 Oct 2014. pp. 188-191 .

Record type: Conference or Workshop Item (Poster)

Abstract

Partial discharge (PD) analysis is an important tool for assessing the lifespan of power equipment especially in cables and high voltage (HV) transformers. Different PD sources have different effects on the condition and performance of power equipment insulation system. Therefore, the ability to identify different PD sources is a great interest for both system utilities and equipment manufacturers. Hence, an experiment has been designed at the Tony Davies High Voltage Laboratory, University of Southampton to access the methodologies for the identification of multiple PD sources within a HV transformer windings. Previous work at Southampton developed a non-linear based technique that facilitates identification of the location of a PD source within an interleaved winding. This project is concerned with the feasibility of locating several sources simultaneously based only on measurement data from wideband RFCTs placed at the neutral to earth point and the bushing tap-point to earth. Initial results from a simple experiment are presented and development of an analytical approach described.

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More information

Published date: October 2014
Venue - Dates: 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Des Moines, United States, 2014-10-19 - 2014-10-22
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 380360
URI: https://eprints.soton.ac.uk/id/eprint/380360
PURE UUID: 3249044a-32af-4df2-b2a4-88f9d3510eac

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Date deposited: 10 Sep 2015 10:50
Last modified: 15 Jul 2019 21:08

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Contributors

Author: N.H. Nik Ali
Author: J.A. Hunter
Author: P. Rapisarda
Author: P.L. Lewin

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