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

fYear

1994

fDate

5-8 Jun 1994

Firstpage

273

Lastpage

276

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on

Conference_Location

Pittsburgh, PA

ISSN

1089-084X

Print_ISBN

0-7803-1942-7

Type

conf

DOI

10.1109/ELINSL.1994.401513

Filename

401513