An electrical PD location method applied to a continuous disc type transformer winding

S.N. Hettiwatte; Z.D. Wang; P.A. Crossley; P. Jarman; G. Edwards; A. Darwin

doi:10.1109/ICPADM.2003.1218453

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An electrical PD location method applied to a continuous disc type transformer winding

Conference paper

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An electrical PD location method applied to a continuous disc type transformer winding

S.N. Hettiwatte, Z.D. Wang, P.A. Crossley, P. Jarman, G. Edwards and A. Darwin

Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Cat. No.03CH37417), Vol.1, pp.471-474

IEEE

Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Nagoya, Japan, 01/06/2003–05/06/2003)

2003

DOI: https://doi.org/10.1109/ICPADM.2003.1218453

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Abstract

A 6.6 kV continuous disc type winding of a distribution transformer is used to investigate the propagation of partial discharges (PD) with the aim of location. The winding was modelled, as multiconductor transmission lines with each turn represented by a transmission line. This approach results in the model being valid up to a few MHz in frequency. The validity of the model was confirmed by impedance measurements on the winding. The transfer functions calculated between probable PD source locations to winding terminals showed that the troughs (or zeros) change in frequency with the location of PD source and hence can be used for the location of PD. Transfer functions obtained experimentally using a discharge calibrator as the PD source, showed very good agreement with the calculations.

Details

Title: An electrical PD location method applied to a continuous disc type transformer winding
Authors/Creators: S.N. Hettiwatte (Author/Creator) - University of Manchester
Z.D. Wang (Author/Creator) - University of Manchester
P.A. Crossley (Author/Creator) - Queen's University Belfast
P. Jarman (Author/Creator) - Coventry (United Kingdom)
G. Edwards (Author/Creator) - Nashotah House Theological Seminary
A. Darwin (Author/Creator) - [Alstom Transmission & Distribution Transformers, Stafford, UK]
Publication Details: Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Cat. No.03CH37417), Vol.1, pp.471-474
Conference: Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Nagoya, Japan, 01/06/2003–05/06/2003)
Publisher: IEEE
Identifiers: 991005543801507891
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Conference paper

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