Journal ArticleDOI
Electrical insulation in superconducting power systems
TLDR
In this article, the use of vacuum, gaseous He, and solid and liquid He as insulators is discussed, and the degradation effects for each of these are examined, and factors to consider in their design are identified.Abstract:
The use of vacuum, gaseous He, and solid and liquid He as insulators is discussed. Degradation effects for each of these are examined. Practical insulation systems are considered. Factors to consider in their design are identified. >read more
Citations
More filters
Dissertation
A model for the initiation and propagation of electrical streamers in transformer oil and transformer oil based nanofluids
TL;DR: This thesis concludes by exploring the possibility of developing simplified streamer models for both transformer oil and transformer oil-based nanofluids, which are computationally efficient and can be solved quickly.
Journal ArticleDOI
Properties of cryogenic insulants
TL;DR: In this article, the authors present guidelines for extrapolation from small scale experimental data to estimate the amount of degradation in a large scale superconducting system. But the information for breakdown strength degradation in large systems is still fragmentary, and some thumb rules can be recommended for design.
Journal ArticleDOI
Weibull statistical analysis of area and volume effects on the breakdown strength in liquid nitrogen
TL;DR: In order to examine the area and the volume effects on breakdown strength in liquid nitrogen (LN/sub 2/), this paper measured dc and ac breakdown voltages in LN/ sub 2/ with sphere to plane and coaxial cylindrical electrode configurations and carried out statistical analysis of the experimental results using the Weibull distribution.
Journal ArticleDOI
High voltage insulation performance of cryogenic liquids for superconducting power apparatus
TL;DR: In this article, high voltage insulation technology of cryogenic liquids for superconducting power apparatus was described and a flow chart for the practical insulation design of superconducted power apparatus is proposed.
Journal ArticleDOI
Properties of electrical insulating materials at cryogenic temperatures: A literature review
F. Krahenbuhl,B. Bernstein,Michael G. Danikas,J. Densley,K. Kadotani,M. Kahle,M. Kosaki,H. Mitsui,M. Nagao,J. Smit,T. Tanaka +10 more
TL;DR: Many insulating materials and systems for superconducting electrical equipment have been developed in response to the severe demands of safe usage, such as in cryogenic temperature, high mechanical stresses, high radiation, etc as mentioned in this paper.
References
More filters
Journal ArticleDOI
Pressurised-helium breakdown at very low temperatures
TL;DR: In this paper, an extensive investigation of the electrical breakdown behaviour of helium at very low temperatures has been carried out to assist the design and development of superconducting power cables.
Journal ArticleDOI
Breakdown phenomena in liquid helium
TL;DR: In this article, the breakdown of liquid helium is discussed and compared using two different mechanisms, i.e., a high-stress and a low-stress mechanism, and the results obtained by various laboratories are compared and discussed.
Book ChapterDOI
Design and Testing of Electrical Insulation for Superconducting Coils
TL;DR: In this paper, the dielectric properties of liquid and gaseous helium and nitrogen, vacuum, and solid insulation materials for practical insulation design for superconducting coils are summarized.
Journal ArticleDOI
The dielectric insulation of superconducting power cables
TL;DR: In this paper, the operating requirements of superconducting cable systems are discussed, and the low-temperature dielectric properties of various gases, liquids and solids are presented.
Journal ArticleDOI
Electrical insulation technology for superconducting devices in Japan
TL;DR: In this paper, the abnormal voltage induced in a superconducting magnet is examined, and the need to utilize insulating materials that do not degrade electrically or mechanically at a very low temperature is demonstrated.