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.

Details

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 )