Sensitivity check for on-line VHF/UHF PD detection on Transmission cables

Author

Agoris, P.D. ; Meijer, S. ; Gulski, E. ; Smit, J.J. ; Hermans, T.J.W. ; Lamballais, L.

Author_Institution

High Voltage Technol. & Manage., Delft Univ. of Technol.

fYear

2006

fDate

38869

Firstpage

204

Lastpage

207

Abstract

The VHF/UHF PD detection technique is a non-intrusive method for power cable PD diagnostics. It incorporates a VHF/UHF current probe placed at the grounding of the cable and a spectrum analyzer connected to the probe. This technique however is very difficult to calibrate due to different factors affecting the frequency response of the measuring setup. In this paper the calibration procedure is described and discussed. Furthermore two examples of on-site calibration are presented, before the actual PD measurements take place. In these examples the sensitivity of the technique is also studied

Keywords

UHF measurement; calibration; computerised monitoring; frequency response; insulation testing; partial discharge measurement; power cable insulation; power cable testing; power engineering computing; power transmission; sensitivity analysis; spectral analysers; current probe; frequency response; insulation defects; nonintrusive method; on-line UHF PD detection technique; on-line VHF PD detection technique; on-site calibration; partial discharge measurement; power cable; sensitivity; spectrum analyzer; transmission cables; Calibration; Circuit testing; Frequency measurement; Grounding; Partial discharges; Power cables; Probes; Spectral analysis; Trees - insulation; UHF measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and applications of Dielectric Materials, 2006. 8th International Conference on

Conference_Location

Bali

Print_ISBN

1-4244-0189-5

Electronic_ISBN

1-4244-0190-9

Type

conf

DOI

10.1109/ICPADM.2006.284153

Filename

4062642