Power transformer monitoring using UHF sensors: site trials

M.D. Judd, G.P. Cleary, C.J. Bennoch, J.S. Pearson, T. Breckenridge

Research output: Contribution to conferencePaper

21 Citations (Scopus)

Abstract

Sensors operating in the ultra-high frequency (UHF) band have been used to detect internal discharges during site testing of a 1000 MVA oil-filled transformer. The transformer was operated at voltages exceeding normal levels by up to 15%. Two discharge sources were detected at both sensors using UHF test equipment. Discharge signals are analyzed in phase-resolved form and time-of-flight measurements are used to provide further information regarding their origin. The results indicate that the URF method could prove very effective for transformer testing and on-line PD monitoring.

Conference

Conference2002 IEEE International Symposium on Electrical Insulation
CountryUnited States
CityBoston
Period7/04/0210/04/02

Fingerprint

Power transformers
Oil filled transformers
Monitoring
Sensors
Testing
Frequency bands
Electric potential

Keywords

  • power transformer
  • monitoring
  • uhf sensors
  • site trials
  • fault location
  • testing
  • test equipment
  • signal analysis
  • power transformers
  • phase measurement
  • oil insulation
  • information analysis
  • frequency

Cite this

Judd, M. D., Cleary, G. P., Bennoch, C. J., Pearson, J. S., & Breckenridge, T. (2002). Power transformer monitoring using UHF sensors: site trials. 145-149. Paper presented at 2002 IEEE International Symposium on Electrical Insulation , Boston, United States. https://doi.org/10.1109/ELINSL.2002.995899
Judd, M.D. ; Cleary, G.P. ; Bennoch, C.J. ; Pearson, J.S. ; Breckenridge, T. / Power transformer monitoring using UHF sensors : site trials. Paper presented at 2002 IEEE International Symposium on Electrical Insulation , Boston, United States.5 p.
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abstract = "Sensors operating in the ultra-high frequency (UHF) band have been used to detect internal discharges during site testing of a 1000 MVA oil-filled transformer. The transformer was operated at voltages exceeding normal levels by up to 15{\%}. Two discharge sources were detected at both sensors using UHF test equipment. Discharge signals are analyzed in phase-resolved form and time-of-flight measurements are used to provide further information regarding their origin. The results indicate that the URF method could prove very effective for transformer testing and on-line PD monitoring.",
keywords = "power transformer, monitoring, uhf sensors, site trials, fault location , testing, test equipment , signal analysis , power transformers, phase measurement, oil insulation , information analysis, frequency",
author = "M.D. Judd and G.P. Cleary and C.J. Bennoch and J.S. Pearson and T. Breckenridge",
year = "2002",
month = "4",
doi = "10.1109/ELINSL.2002.995899",
language = "English",
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note = "2002 IEEE International Symposium on Electrical Insulation ; Conference date: 07-04-2002 Through 10-04-2002",

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Judd, MD, Cleary, GP, Bennoch, CJ, Pearson, JS & Breckenridge, T 2002, 'Power transformer monitoring using UHF sensors: site trials' Paper presented at 2002 IEEE International Symposium on Electrical Insulation , Boston, United States, 7/04/02 - 10/04/02, pp. 145-149. https://doi.org/10.1109/ELINSL.2002.995899

Power transformer monitoring using UHF sensors : site trials. / Judd, M.D.; Cleary, G.P.; Bennoch, C.J.; Pearson, J.S.; Breckenridge, T.

2002. 145-149 Paper presented at 2002 IEEE International Symposium on Electrical Insulation , Boston, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Power transformer monitoring using UHF sensors

T2 - site trials

AU - Judd, M.D.

AU - Cleary, G.P.

AU - Bennoch, C.J.

AU - Pearson, J.S.

AU - Breckenridge, T.

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Y1 - 2002/4

N2 - Sensors operating in the ultra-high frequency (UHF) band have been used to detect internal discharges during site testing of a 1000 MVA oil-filled transformer. The transformer was operated at voltages exceeding normal levels by up to 15%. Two discharge sources were detected at both sensors using UHF test equipment. Discharge signals are analyzed in phase-resolved form and time-of-flight measurements are used to provide further information regarding their origin. The results indicate that the URF method could prove very effective for transformer testing and on-line PD monitoring.

AB - Sensors operating in the ultra-high frequency (UHF) band have been used to detect internal discharges during site testing of a 1000 MVA oil-filled transformer. The transformer was operated at voltages exceeding normal levels by up to 15%. Two discharge sources were detected at both sensors using UHF test equipment. Discharge signals are analyzed in phase-resolved form and time-of-flight measurements are used to provide further information regarding their origin. The results indicate that the URF method could prove very effective for transformer testing and on-line PD monitoring.

KW - power transformer

KW - monitoring

KW - uhf sensors

KW - site trials

KW - fault location

KW - testing

KW - test equipment

KW - signal analysis

KW - power transformers

KW - phase measurement

KW - oil insulation

KW - information analysis

KW - frequency

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Judd MD, Cleary GP, Bennoch CJ, Pearson JS, Breckenridge T. Power transformer monitoring using UHF sensors: site trials. 2002. Paper presented at 2002 IEEE International Symposium on Electrical Insulation , Boston, United States. https://doi.org/10.1109/ELINSL.2002.995899