Electrical Insulation Paper and Its Physical Properties at Cryogenic Temperatures

Author

Tuncer, Enis ; Polizos, Georgios ; Sauers, Isidor ; James, D. Randy

Author_Institution

Appl. Supercond. Group, Oak Ridge Nat. Lab., Oak Ridge, TN, USA

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1438

Lastpage

1440

Abstract

Paper is widely used in various engineering applications due to its physical properties and ease of manufacture. As a result paper has been selected or designed as an electrical insulation material for parts and components in high voltage technology. In the current study we select a paper employed in conventional transformers as the electrical insulation material. The potential of this paper is investigated at cryogenic temperatures to determine its physical properties for high temperature superconducting power applications. Dielectric measurements were performed using impedance spectroscopy at a constant frequency. Dielectric breakdown tests were performed on samples at 77 K using a liquid nitrogen bath.

Keywords

cryogenics; paper; cryogenic temperatures; dielectric measurements; electrical insulation material; electrical insulation paper; high temperature superconducting power applications; high voltage technology; impedance spectroscopy; liquid nitrogen bath; temperature 77 K; Dielectrics; Electric breakdown; Insulation; Materials; Permittivity; Temperature; Temperature measurement; Dielectric breakdown; Kraft paper; dielectric properties; impregnation with polypropylene;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2092747

Filename

5672811