Characteristics of the partial discharge pulse burst in transformer and switchgear oils

Author

Pomp, M. ; Mazzetti, C. ; Bartnikas, R.

Author_Institution

Roma Univ., Italy

fYear

2002

fDate

2002

Firstpage

87

Lastpage

90

Abstract

A study was carried out on the partial discharge pulse burst behavior in a mineral oil under AC conditions. The recurrence rate of pulse bursts was found to increase significantly with voltage above partial discharge inception. This was accompanied by an increase of both the number of discrete pulses and their amplitude within the pulse burst itself. These increases were reflected by a substantial rise in the apparent charge transfer per pulse burst as well as the overall charge transfer with increased applied voltage.

Keywords

impulse testing; insulation testing; partial discharge measurement; power transformer insulation; power transformer testing; switchgear insulation; switchgear testing; transformer oil; AC conditions; apparent charge transfer; insulation breakdown testing; mineral oil; partial discharge inception; partial discharge pulse burst characteristics; power transformer oils; switchgear insulating oils; Charge transfer; Electric breakdown; Oil insulation; Partial discharges; Petroleum; Power transformer insulation; Pulse circuits; Pulse measurements; Pulse transformers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 2002. ICDL 2002. Proceedings of 2002 IEEE 14th International Conference on

Print_ISBN

0-7803-7350-2

Type

conf

DOI

10.1109/ICDL.2002.1022700

Filename

1022700