Development and tests of extruded polyethylene insulated superconducting cable

Author

Kosaki, M. ; Nagao, M. ; Mizuno, Y. ; Horii, K. ; Shimizu, N.

Author_Institution

Toyohashi Univ. of Technol., Japan

fYear

1988

fDate

12-16 Sep 1988

Firstpage

426

Abstract

A superconducting power cable which has a similar structure to the conventional extruded polyethylene cable is proposed. The rated voltage and current are 20 kV and 2 kA, respectively. The design utilizes the excellent electrical properties of polyethylene at cryogenic temperatures and separate helium coolant from the electrical insulation. The outer superconductor layers for magnetic shielding are eliminated for the simplicity of the structure. The thermal shielding consists of multilayer superinsulation and high vacuum. The simplicity of the design reduces the cost. A superconducting cable based on this scheme has been built in Japan. A cooling test down to liquid-helium temperature, a current test up to 2.5 kA, and voltage tests at liquid-nitrogen temperature have been carried out with fair success

Keywords

cable insulation; cable testing; organic insulating materials; polymers; superconducting cables; 2 kA; 2.5 kA; 20 kV; 4.2 K; 77 K; He cooling; Japan; cooling test; cryogenic temperatures; current test; electrical insulation; electrical properties; extruded polyethylene cable; high vacuum; magnetic shielding; multilayer superinsulation; rated voltage; superconducting power cable; thermal shielding; voltage tests; Cable shielding; Cryogenics; Helium; Insulation; Polyethylene; Power cables; Superconducting cables; Temperature; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of

Conference_Location

Beijing

Type

conf

DOI

10.1109/ICPADM.1988.38425

Filename

38425