1Baumgartner R et al. Partial discharge part XI:PD in gas-insulated substations-Fundamental considerations. IEEE EIM, 1991,7(6):5.
2Pearson J S et al. A continuous UHF monitor for gasinsulated substations, IEEE Trans EI,1991, 6(3):469.
3Nichdas de Kock et al. UHF PD detection in gas-insulated switchgear-suitablity and sensitivity of the UHF method in comparison with the IEC 270 method.IEEE EIM,1996,12(6):20.
4Zhang M C et al. Wide bandwidth sensor for PD measurement in GIS. 3rd Internatinal Conference of ECAAA, Xian China, 1996.
