Application of UHF diagnostics to detect PD during power transformer acceptance tests

Sander Meijer, Pantelis. D. Agoris, Johan. J. Smit, M.D. Judd, L. Yang

Research output: Contribution to conferencePaper

Abstract

Different diagnostic techniques are currently available for on-line insulation condition assessment of power transformers. Amongst these techniques a relatively new technique for detecting partial discharges (PD) in the Ultra High
Frequency range of the spectrum is also introduced. The UHF technique has been recently presented in the field of transformer diagnostics, and although it is under development it shows great potential for on-line detection, recognition and location of PD activity. This paper describes the practical application of the UHF technique on two new identical 90 MVA, 150 kV power transformers. Both transformers are equipped with four external UHF sensors. Initially, injection measurements were performed to investigate the effects experienced by UHF signals when propagating through the transformer. Moreover, software developed to model the propagation of UHF signals inside the transformer tank was tested in its application to these specific transformers. The results obtained during the both the induced voltage test, as well as during the PD acceptance test in the factory are described. The practical experiences related in this paper provide further insight into the application of UHF PD monitoring techniques to power transformers.

Conference

ConferenceIEEE International Symposium on Electrical Insulation
CountryUnited Kingdom
Period11/06/0614/06/06

Fingerprint

Acceptance tests
Power transformers
Partial discharges
Industrial plants
Insulation
Monitoring
Sensors
Electric potential

Keywords

  • application software
  • UHF propagation
  • UHF measurements
  • software testing
  • production facilities
  • power transformers
  • performance evaluation
  • partial discharges
  • frequency
  • power transformer insulation

Cite this

Meijer, S., Agoris, P. D., Smit, J. J., Judd, M. D., & Yang, L. (2006). Application of UHF diagnostics to detect PD during power transformer acceptance tests. Paper presented at IEEE International Symposium on Electrical Insulation, United Kingdom. https://doi.org/10.1109/ELINSL.2006.1665346
Meijer, Sander ; Agoris, Pantelis. D. ; Smit, Johan. J. ; Judd, M.D. ; Yang, L. / Application of UHF diagnostics to detect PD during power transformer acceptance tests. Paper presented at IEEE International Symposium on Electrical Insulation, United Kingdom.
@conference{f37f2c93e051475a97f771b2cd3f8a19,
title = "Application of UHF diagnostics to detect PD during power transformer acceptance tests",
abstract = "Different diagnostic techniques are currently available for on-line insulation condition assessment of power transformers. Amongst these techniques a relatively new technique for detecting partial discharges (PD) in the Ultra HighFrequency range of the spectrum is also introduced. The UHF technique has been recently presented in the field of transformer diagnostics, and although it is under development it shows great potential for on-line detection, recognition and location of PD activity. This paper describes the practical application of the UHF technique on two new identical 90 MVA, 150 kV power transformers. Both transformers are equipped with four external UHF sensors. Initially, injection measurements were performed to investigate the effects experienced by UHF signals when propagating through the transformer. Moreover, software developed to model the propagation of UHF signals inside the transformer tank was tested in its application to these specific transformers. The results obtained during the both the induced voltage test, as well as during the PD acceptance test in the factory are described. The practical experiences related in this paper provide further insight into the application of UHF PD monitoring techniques to power transformers.",
keywords = "application software , UHF propagation , UHF measurements , software testing , production facilities , power transformers , performance evaluation, partial discharges , frequency , power transformer insulation",
author = "Sander Meijer and Agoris, {Pantelis. D.} and Smit, {Johan. J.} and M.D. Judd and L. Yang",
year = "2006",
month = "6",
doi = "10.1109/ELINSL.2006.1665346",
language = "English",
note = "IEEE International Symposium on Electrical Insulation ; Conference date: 11-06-2006 Through 14-06-2006",

}

Meijer, S, Agoris, PD, Smit, JJ, Judd, MD & Yang, L 2006, 'Application of UHF diagnostics to detect PD during power transformer acceptance tests' Paper presented at IEEE International Symposium on Electrical Insulation, United Kingdom, 11/06/06 - 14/06/06, . https://doi.org/10.1109/ELINSL.2006.1665346

Application of UHF diagnostics to detect PD during power transformer acceptance tests. / Meijer, Sander; Agoris, Pantelis. D.; Smit, Johan. J.; Judd, M.D.; Yang, L.

2006. Paper presented at IEEE International Symposium on Electrical Insulation, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Application of UHF diagnostics to detect PD during power transformer acceptance tests

AU - Meijer, Sander

AU - Agoris, Pantelis. D.

AU - Smit, Johan. J.

AU - Judd, M.D.

AU - Yang, L.

PY - 2006/6

Y1 - 2006/6

N2 - Different diagnostic techniques are currently available for on-line insulation condition assessment of power transformers. Amongst these techniques a relatively new technique for detecting partial discharges (PD) in the Ultra HighFrequency range of the spectrum is also introduced. The UHF technique has been recently presented in the field of transformer diagnostics, and although it is under development it shows great potential for on-line detection, recognition and location of PD activity. This paper describes the practical application of the UHF technique on two new identical 90 MVA, 150 kV power transformers. Both transformers are equipped with four external UHF sensors. Initially, injection measurements were performed to investigate the effects experienced by UHF signals when propagating through the transformer. Moreover, software developed to model the propagation of UHF signals inside the transformer tank was tested in its application to these specific transformers. The results obtained during the both the induced voltage test, as well as during the PD acceptance test in the factory are described. The practical experiences related in this paper provide further insight into the application of UHF PD monitoring techniques to power transformers.

AB - Different diagnostic techniques are currently available for on-line insulation condition assessment of power transformers. Amongst these techniques a relatively new technique for detecting partial discharges (PD) in the Ultra HighFrequency range of the spectrum is also introduced. The UHF technique has been recently presented in the field of transformer diagnostics, and although it is under development it shows great potential for on-line detection, recognition and location of PD activity. This paper describes the practical application of the UHF technique on two new identical 90 MVA, 150 kV power transformers. Both transformers are equipped with four external UHF sensors. Initially, injection measurements were performed to investigate the effects experienced by UHF signals when propagating through the transformer. Moreover, software developed to model the propagation of UHF signals inside the transformer tank was tested in its application to these specific transformers. The results obtained during the both the induced voltage test, as well as during the PD acceptance test in the factory are described. The practical experiences related in this paper provide further insight into the application of UHF PD monitoring techniques to power transformers.

KW - application software

KW - UHF propagation

KW - UHF measurements

KW - software testing

KW - production facilities

KW - power transformers

KW - performance evaluation

KW - partial discharges

KW - frequency

KW - power transformer insulation

U2 - 10.1109/ELINSL.2006.1665346

DO - 10.1109/ELINSL.2006.1665346

M3 - Paper

ER -

Meijer S, Agoris PD, Smit JJ, Judd MD, Yang L. Application of UHF diagnostics to detect PD during power transformer acceptance tests. 2006. Paper presented at IEEE International Symposium on Electrical Insulation, United Kingdom. https://doi.org/10.1109/ELINSL.2006.1665346