A.C. breakdown properties of ice-alcohol mixed system

Author

Tsuchiya, R. ; Muramoto, Yoshifumi ; Shimizu, N.

Author_Institution

Dept. of Electr. & Electron. Eng., Meijo Univ., Nagoya, Japan

fYear

2013

fDate

June 30 2013-July 4 2013

Firstpage

533

Lastpage

536

Abstract

We have studied the use of ice as electrical insulating material at cryogenic temperature. Ice has excellent electrical breakdown strength. In addition, ice is environment-friendly material and easy to be molded into various shape because it is liquid at room temperature. However, ice has the following problems as electrical insulating material; the mechanical strength is weak, voids or cracks are easily formed. We consider that these problems can be solved by combination of ice and natural fiber. Our laboratory reported the A.C. electrical breakdown strengths of bamboo-ice and kenaf pulp-ice composite systems are almost the same with that of GFRP. In this paper we tried to improve the A.C. breakdown strength of ice itself by mixture of water-soluble material. We chose alcohol as water soluble material; namely ethanol, 1-propanol, 2-propanol, propylene glycol and glycerin. We examined the A.C. breakdown strength of ice-alcohol mixed system at 77K. As the results, the A.C. breakdown strength of ice-2-propanol mixed system shows the highest, 64% higher value than ice itself.

Keywords

composite insulating materials; cracks; electric breakdown; glass fibre reinforced plastics; ice; mechanical strength; mixtures; voids (solid); 1- propanol; AC breakdown properties; AC electrical breakdown strengths; bamboo-ice composite systems; cracks; cryogenic temperature; electrical breakdown strength; electrical insulating material; environment friendly material; ethanol; glycerin; ice-2-propanol mixed system; ice-alcohol mixed system; kenaf pulp-ice composite systems; natural fiber; propylene glycol; temperature 77 K; voids; water-soluble material mixture; Cooling; Electric breakdown; Electrodes; Ethanol; Ice; Materials; Temperature measurement; A.C. breakdown properties; alcohol; cryogenic temperature; ice; mixed system;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics (ICSD), 2013 IEEE International Conference on

Conference_Location

Bologna

ISSN

2159-1687

Print_ISBN

978-1-4799-0807-3

Type

conf

DOI

10.1109/ICSD.2013.6619689

Filename

6619689