A Study on the Partial Discharge Measurement using Antenna in Metal-Enclosed Switchgear

폐쇄형 배전반내의 안테나를 이용한 부분방전측정에 관한 연구

This paper describes measurement and diagnosis methods for enclosed switchboards using antenna. In the laboratory partial discharges are generated on a needle-plate electrode configuration, the detected electromagnetic wave is analyzed by FFT. The detected electromagnetic wave in real enclosed switchboards is also analyzed by FFT, which is compared with frequency spectra of the laboratory to detect the partial discharge. The relationship between the partial discharge characteristics and the electromagnetic wave has been discussed.