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Partial Discharge Location within a Transformer Winding using Principal Component Analysis

Partial Discharge Location within a Transformer Winding using Principal Component Analysis
Partial Discharge Location within a Transformer Winding using Principal Component Analysis
Partial discharge (PD) may occur in a transformer winding due to ageing processes, operational over stressing or defects introduced during manufacture. The presence of PD does not necessarily indicate imminent failure of the transformer but it will lead to serious degradation and ageing mechanisms which can be considered as a precursor of transformer failure. A necessary step is required in order to prevent degradation due to PD activity which may ultimately lead to failure. PD might occur anywhere along the transformer winding, the discharge signal can propagate along the winding to the bushing and neutral to earth connections. As far as maintenance and replacement processes are concerned, it is important to identify the location of PD activity so any repair or replace decision is assured to be cost effective. Therefore, identification of a PD source as well as its location along the transformer winding is of great interest to both manufacturers and system operators. The proposed method for locating PD sources in windings is based on wavelet filtering and principal component analysis. An experiment has been developed based on a high voltage winding section that has been used to produce PD measurement data and to investigate the feasibility of the proposed approach.
CD-ROM
Abd Rahman, M S
8217f865-63cf-4fa4-9f2b-19589bbdb2f0
Hao, L
e6006548-3fc1-4a7e-9df4-a4e9a9a05c45
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Abd Rahman, M S
8217f865-63cf-4fa4-9f2b-19589bbdb2f0
Hao, L
e6006548-3fc1-4a7e-9df4-a4e9a9a05c45
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e

Abd Rahman, M S, Hao, L and Lewin, P L (2011) Partial Discharge Location within a Transformer Winding using Principal Component Analysis. 17th International Symposium on High Voltage Engineering, Germany. 22 - 26 Aug 2011. CD-ROM .

Record type: Conference or Workshop Item (Paper)

Abstract

Partial discharge (PD) may occur in a transformer winding due to ageing processes, operational over stressing or defects introduced during manufacture. The presence of PD does not necessarily indicate imminent failure of the transformer but it will lead to serious degradation and ageing mechanisms which can be considered as a precursor of transformer failure. A necessary step is required in order to prevent degradation due to PD activity which may ultimately lead to failure. PD might occur anywhere along the transformer winding, the discharge signal can propagate along the winding to the bushing and neutral to earth connections. As far as maintenance and replacement processes are concerned, it is important to identify the location of PD activity so any repair or replace decision is assured to be cost effective. Therefore, identification of a PD source as well as its location along the transformer winding is of great interest to both manufacturers and system operators. The proposed method for locating PD sources in windings is based on wavelet filtering and principal component analysis. An experiment has been developed based on a high voltage winding section that has been used to produce PD measurement data and to investigate the feasibility of the proposed approach.

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More information

Published date: 22 August 2011
Additional Information: Event Dates: 22-26 August 2011
Venue - Dates: 17th International Symposium on High Voltage Engineering, Germany, 2011-08-22 - 2011-08-26
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 272708
URI: https://eprints.soton.ac.uk/id/eprint/272708
PURE UUID: 3528fb24-f51f-4c55-a75e-47d112257c89

Catalogue record

Date deposited: 24 Aug 2011 07:22
Last modified: 16 Oct 2018 16:31

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