Title :
Ultrahigh frequency study of PD pulses
Author :
Vettese, G. ; Libotte, M. ; Pompili, M. ; Mazzetti, C. ; Forster, E.O.
Author_Institution :
Dipartimento di Energia Elettrica, Rome Univ., Italy
Abstract :
Conventional partial discharge (PD) measurements are carried out with instruments of relatively limited bandwidth. There arises the question as to the temporal characteristics of the actual pulses and the significance of the results so obtained. To gain a detailed knowledge of the rise time, duration and amplitude of these pulses, a study has been undertaken using as detector a 500 MHz digitizing oscilloscope in combination with a point-plane electrode geometry. In this paper the pulse characteristics of PD in air were studied as a function of polarity under dc and ac conditions
Keywords :
impulse testing; insulation testing; partial discharges; 500 MHz; PD pulses; air; digitizing oscilloscope; insulation testing; partial discharge measurements; point-plane electrode geometry; polarity; pulse characteristics; rise time; temporal characteristics; Bandwidth; Detectors; Electrodes; Frequency; Geometry; Instruments; Oscilloscopes; Partial discharge measurement; Partial discharges; UHF measurements;
Conference_Titel :
Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-1942-7
DOI :
10.1109/ELINSL.1994.401513
