Moisture uptake of mineral oil at different air relative humidities and temperatures

authored by

Issouf Fofana, H. Borsi, Ernst Gockenbach

Abstract

We report here the results of the simulation of a defect in the breathing system of a high voltage transformer. These investigations serve also as fundamental ones concerning the moisture uptake velocity of mineral oil under selective conditions. The investigations were performed at a temperature of 23 and 60 °C while the surrounding air relative humidity was varied between 20 and 90% to simulate climatic variations. The results were discussed regarding the AC electric strength standard according to VDE or IEC. Finally a correlation between the surrounding air relative humidity, temperature and oil moisture uptake rate is proposed.

Organisation(s)

High Voltage Engineering and Asset Management Section (Schering Institute)

External Organisation(s)

Universite du Quebec a Chicoutimi (UQAC)
Hydro-Quebec

Type

Article

Journal

Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report

Volume

1

Pages

276-279

No. of pages

4

ISSN

0084-9162

Publication date

2000

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Building and Construction, Industrial and Manufacturing Engineering, Electrical and Electronic Engineering

Electronic version(s)

https://doi.org/10.1109/CEIDP.2000.885280 (Access: Unknown)