Corona in Oil
- 1 January 1925
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers
- Vol. XLIV, 211-216
- https://doi.org/10.1109/t-aiee.1925.5061105
Abstract
Experiments were made to determine certain effects of high local voltage stresses in transformer oil. The resistivity of the oil was measured by a special method immediately following a period of voltage stress. The results were: 1. A greatly reduced resistivity when the stressing voltage was greater than that producing visible corona. 2. A gradual increase in resistivity following removal of stress. The ``rapidly applied'' breakdown voltage was found for samples of oil which had been previously subjected to high voltage stresses. The dielectric strength varied in a manner similar to the resistivity, but showed an actual improvement in dielectric strength when the oil was given a rest period of 15 minutes. Definite conclusions are given at the end of the paper.Keywords
This publication has 1 reference indexed in Scilit:
- Über die Leitfähigkeit und die dielektrische Festigkeit von TransformatorenölElectrical Engineering, 1924