A feasibility study and experiments on a cryoresistive transformer cooled at -150 degree c with fluorocarbon
- 1 November 1977
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. 96 (6) , 1831-1839
- https://doi.org/10.1109/t-pas.1977.32516
Abstract
The feasibility of a new type cryoresistive transformer, which is operated at -150°C and has a higher efficiency and some weight and size merits compared to the conventional oil cooled transformer, is examined. This transformer has a new cooling system in which the latent heat of evaporation of L.N.G. is used instead of a refrigerator. In addition, because of the low operating temperature, some new materials which are not commonly used in oil cooled transformer, such as liquid fluorocarbon 12 and a composite paper made of a non-woven cloth and apolyethylene film, are adopted. A 1200 KVA experimental transformer wsa built and from the experimental results, it may be concluded that this new type cryoresistive transformer can be used as a power transformer.Keywords
This publication has 6 references indexed in Scilit:
- Feasibility of a power transformer with superconducting windingsProceedings of the Institution of Electrical Engineers, 1970
- The feasibility of superconducting power transformersCryogenics, 1969
- Prospect of employing conductors at low temperature in power cables and in power transformersProceedings of the Institution of Electrical Engineers, 1966
- Cryogenic behavior of selected magnetic materialsJournal of Research of the National Bureau of Standards, Section C: Engineering and Instrumentation, 1965
- Superconductive windings in power transformersProceedings of the Institution of Electrical Engineers, 1963
- Superconducting power transformers — A feasibility studyElectrical Engineering, 1961