Digital location of partial discharges in HV cables

Author

Borsi, H.

Author_Institution

Inst. for High Voltage Eng., Hannover Univ., Germany

Volume

27

Issue

1

fYear

1992

fDate

2/1/1992 12:00:00 AM

Firstpage

28

Lastpage

36

Abstract

This paper deals with a new digital system for locating partial discharges (PDs) in high voltage (HV) cables under noisy conditions. After an introduction to different PD location methods and their limits, the possibility of PD location through the pulse separation method is introduced. Digital filtering performed with predictor filters is described. Extensive investigations are carried out to determine the effectiveness of these filters, as well as their limitations, in their use for PD and noise separation. The results concerning the application of filtering on PD and noise signals measured on an HV cable under noisy conditions are presented

Keywords

cable testing; charge measurement; digital filters; fault location; partial discharges; power cables; HV cables; digital filtering; digital location; digital system; noise separation; noisy conditions; partial discharges; predictor filters; pulse separation method; Attenuation; Cable insulation; Digital filters; Digital systems; Fault location; Filtering; Manufacturing; Partial discharges; Pulse measurements; Voltage;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.123438

Filename

123438