Alistair Reid

TL;DR: In this article, the relationship between the IEC 60270 pC and Radio Frequency (RF) signal energy is analyzed for a given test configuration, and the correlation between the two techniques produces characteristic patterns specific to each defect type.

TL;DR: The results show that the proposed CNN method has higher pattern recognition accuracy than SVM and BPNN, and that the novel method is especially effective for PD type recognition in cases of signals of high similarity, which is applicable for industrial applications.

TL;DR: In this paper, the UHF signals generated due to conducting particle contamination in transformer oil under both AC and DC voltages are compared and analyzed, and a method for distinguishing particle discharges in regions of high or low electric field stress is proposed based on frequency-domain analysis of the measured UHF signal.

TL;DR: In this article, measurements of PD current pulses in gas insulated substations are presented for a point-plane configuration using an extremely wide bandwidth (13 GHz) measurement system, and the results show a considerable variation in pulse shape, with the minimum rise time measured being 35 ps.

TL;DR: Results show that the proposed RF-based method is effective for PD feature selection of HV cables with the potential for application to additional HV power apparatus.