Title :
Oil preservation systems
Author :
Chadwick, A. T. ; Ryder, D. H. ; Brierley, A. E.
Author_Institution :
English Electric Co. Ltd., Stafford, England
fDate :
7/1/1960 12:00:00 AM
Abstract :
THE most generally adopted systems of oil-preservation, for large high-voltage transformers have been: (1) the oil-conservator system, in which the oil level surface is at constant atmospheric pressure; and (2) the gas-pressure system, in which the upper part of the transformer tank is maintained under a positive gas pressure which is allowed to vary up to approximately 8 pounds per square inch, as the oil volume varies with temperature.
Keywords :
Corona; Hazards; Oil insulation; Power transformer insulation; Stress; Surface treatment;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1960.6432713
