Title :
Frequency characteristics of electromagnetic wave radiated from GIS apertures
Author :
Hoshino, Toshihiro ; Kato, Katsumi ; Hayakawa, Naoki ; Okuno, Hirotsugu
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
fDate :
10/1/2001 12:00:00 AM
Abstract :
Partial discharge (PD) measurement using electromagnetic wave by antennas is a promising technique to diagnose the insulation performance of SF6 GIS. In order to establish high sensitive diagnosis technique of GIS insulation, frequency characteristics of electromagnetic wave, which are determined by GIS apertures such as insulating spacers and bushings, should be clarified. In this paper, we measured the electromagnetic wave radiated from different GIS apertures and also analyzed it using transient analysis program “PSpice.” Comparing the measurements with the theoretical analyzes, we investigated the relationship between the GIS aperture configuration and the radiated electromagnetic wave spectrum from the aperture. We also discussed how the aperture condition contributed to the radiation characteristics of electromagnetic wave. Finally, we concluded that the electromagnetic wave radiated from GIS aperture was based on different radiation mechanism in frequency
Keywords :
SF6 insulation; SPICE; bushings; electromagnetic waves; gas insulated switchgear; log periodic antennas; partial discharge measurement; transient analysis; GIS apertures; PD measurement; PSpice; SF6; aperture condition; bushings; frequency characteristics; high sensitive diagnosis technique; insulating spacers; insulation performance diagnosis; log-periodic antenna; partial discharge measurement; radiated electromagnetic wave; radiation characteristics; transient analysis program; Apertures; Electromagnetic analysis; Electromagnetic measurements; Electromagnetic radiation; Electromagnetic scattering; Frequency; Geographic Information Systems; Insulation; Partial discharges; Transient analysis;
Journal_Title :
Power Delivery, IEEE Transactions on
