Antenna parametrization for the detection of partial discharges

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https://doi.org/10.1109/TIM.2012.2223332

G. Robles, M. Sánchez, R. Albarracín, M.V. Rojas, E. Rajo, J.M. Martinez-Tarifa, Antennas parametrization for the detection of partial discharges, IEEE Transactions Instrumentation and Measurement, Vol. 62, Issue 5, pp 932-941, May 2013.

  • 2013 Impact Factor: 1.710
  • 18/57 (Q2) in ‘Instruments & Instrumentation’
  • Journal Impact Factor Percentile: 69.298

Abstract – Partial Discharge (PD) detection is a widely extended technique for electrical insulation diagnosis. Ultra High Frequency (UHF) detection techniques appear as a feasible alternative to traditional methods thanks to their inherent advantages such as the capability to detect partial discharges on-line and to locate the piece of equipment with insulation problems in substations and cables. In this paper, four antennas are thoroughly studied by means of their theoretical and experimental behavior when measuring electromagnetic pulses radiated by partial discharges activity. The theoretic study of the band of frequencies in which the pulse emits and the measurement of the parameters S11 is complemented with the frequency response and wavelet transform of a set of 500 time signals acquiredby the antennas and the results are analyzed in detail.

Keywords – Antenna measurements, dielectric measurements, partial discharges (PDs), UHF measurements, ultrahighfrequency (UHF) antennas, wavelets.