Partial discharge diagnostics for DC equipment

Author

Morshuis, Peter ; Hoogenraad, Gerard

Author_Institution

High Voltage Lab., Delft Univ. of Technol., Netherlands

Volume

1

fYear

1996

fDate

16-19 Jun 1996

Firstpage

407

Abstract

Partial discharges (PD) are an indication of weak spots in the insulation of DC high voltage equipment. For AC equipment, classification of the type of defect can be achieved if statistical tools are used on the PD phase distributions. In this paper, the authors propose the use of a similar technique for classification at DC voltage. One major adjustment has to be made: the phase angle used at AC voltage has to be replaced by the time between discharges at DC voltage. This method has been tried on artificial defects with success. Both the method and the test results are presented

Keywords

electric breakdown; insulation testing; partial discharges; power apparatus; statistical analysis; DC high voltage equipment; PD phase distributions; insulation breakdown tests; insulation weak spots; partial discharge diagnostics; statistical tools; time between discharges; Databases; Fingerprint recognition; Histograms; Insulation; Laboratories; Partial discharge measurement; Partial discharges; Phase detection; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on

Conference_Location

Montreal, Que.

ISSN

1089-084X

Print_ISBN

0-7803-3531-7

Type

conf

DOI

10.1109/ELINSL.1996.549367

Filename

549367