๐”– Bobbio Scriptorium
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Field test of liquid nitrogen cooled cryogenic power cable

โœ Scribed by H. Nagano; M. Fukasawa; S. Kuma; K. Sugiyama


Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
967 KB
Volume
13
Category
Article
ISSN
0011-2275

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โœฆ Synopsis


The successful operation of the cable makes us hopeful it can be used for large capacity transmission. Our test line is composed of aluminium stranded hollow conductor, liquid-nitrogen impregnated polyethylene paper electrical insulation, and polyurethane foam thermal insulation.


๐Ÿ“œ SIMILAR VOLUMES


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โœ M. Fukasawa; H. Nagano ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 394 KB

The measured dissipation factor and breakdown strength of liquid nitrogen impregnated polyethylene paper insulation for cryogenic power cable are presented. The effect of screening, and impulse and ac deteriorations are discussed. The tests were carried out using model cable type specimens.

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A 66 k V fiquid nitrogen cooled cryogenic cable was manufactured and tested using ac and impulse voltages. Liquid nitrogen cooled cryogenic cables will be in practical use over the 275-500 k V range. Study of the 66 kV class cable is the first step towards this development. The insulation system of