The correlation between partial discharges (PD) and gassing in insulating liquids

authored by

H. Borsi, U. Schröder

Abstract

The authors report on investigations performed to determine the relationship between PD parameters and the dissolved gas generated by partial discharges in mineral-based oil. The PD activity of mineral-based oil is shown to depend upon many parameters, including the influence of the standing time between the filling of the test vessel and the switching of the test voltage as well as the voltage's magnitude on the PD activity. Regarding the gassing behavior, several hydrocarbons show a linear (increasing) dependence upon the integral PD parameters. By contrast the amount of oxygen decreases with increasing PD loading. Calculation of gas ratios indicates that the relation between hydrogen and methane is a sensitive indicator of PD activity in mineral-based oil.

Organisation(s)

High Voltage Engineering and Asset Management Section (Schering Institute)

Type

Paper

Pages

535-540

No. of pages

6

Publication date

1990

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

General Engineering