NDLI: Effect of Color of Tank on the Temperature of Self-Cooled Transformers under Service Conditions

Content Provider	IEEE Xplore Digital Library
Author	Montsinger, V. M. Wetherill, L.
Copyright Year	1884
Abstract	The effect of color on the temperature of oil-immersed self-cooled transformers under service conditions has been a mooted question for a great many years. Based upon the relative absorption powers of the various colors often used in painting transformer tanks the lighter colors should give appreciably lower temperatures in hot climate sections. The results of three series of field tests conducted on actual transformers are given in the paper. The results, however, do not show the advantages for the light colors that would be expected, based solely upon the absorption powers of the colors. A method of calculation is used to check the test results, taking into consideration the various factors which apply to a transformer and do not apply to, say, a piece of metal painted and exposed to the sun's rays, such as the ratio of the area of the surface exposed to the sun to the total surface dissipating heat, the difference in thermal capacities, and the condition where in one case the test piece is dissipating heat, as well as receiving heat from the sun, whereas in the other case it only receives heat from the sun. It is shown that when all the factors are taken into consideration the calculated results check very closely the observations.
Starting Page	41
Ending Page	50
Page Count	10
File Size	2221809
File Format	PDF
ISSN	00963860
Volume Number	49
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1930-01-01
Publisher Place	New York, U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature Dielectric breakdown Water heating Impurities Oil insulation Heat treatment Power transformer insulation Circuit testing Resistance heating
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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Predetermination of Self-Cooled Oil-Immersed Transformer Temperatures Before Conditions are Constant

Effects of streaming potential on heat transfer in transformer oils

Breakdown Characteristics of Moving Transformer Oil

Heating of Transformers Under Short-Circuit Conditions

Dielectric Strength of Transformer Insulation

Measurement of transformer oil dielectric strength

Temperature Rise of Water-Cooled Power Transformers

Corona Voltages of Typical Transformer Insulations Under Oil

Dielectric Strength of Oil with Variations of Pressure and Temperature

Effect of Color of Tank on the Temperature of Self-Cooled Transformers under Service Conditions

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Predetermination of Self-Cooled Oil-Immersed Transformer Temperatures Before Conditions are Constant

Effects of streaming potential on heat transfer in transformer oils

Breakdown Characteristics of Moving Transformer Oil

Heating of Transformers Under Short-Circuit Conditions

Dielectric Strength of Transformer Insulation

Measurement of transformer oil dielectric strength

Temperature Rise of Water-Cooled Power Transformers

Corona Voltages of Typical Transformer Insulations Under Oil

Dielectric Strength of Oil with Variations of Pressure and Temperature

Effect of Color of Tank on the Temperature of Self-Cooled Transformers under Service Conditions