Published: Jan 1964
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The range of equipment applications for gaseous dielectrics, including transformers, circuit breakers, airborne electronics, and radar, has been broadened because of the development of new electronegative gases. These gases have higher breakdown voltage characteristics than air or nitrogen. This permits the design of smaller and lighter equipment, while maintaining high standards of reliability and performance.
ASTM Committee D-27 on Electrical Insulating Liquids and Gases investigated the uses of the test cell reported by Manning in 1959 and two other cells for evaluating the dielectric strength of gases. Interlaboratory tests were conducted with these cells to establish a procedure and explore the probable precision.
This paper discusses many questions in the applications of test methods that would evaluate the use of gases as insulation in electrical equipment. A general review of the literature is given regarding test methods, electrode systems, and results of test.
Manning, M. L.
Dean of engineering and director of the Engineering Experiment Station, South Dakota State College, Brookings, S.D.