Engineering of enhanced performance insulating cellulose papers for application in distribution transformers

Author

Biggie, Kevin ; Ernst, William ; Franchek, Michael ; Levin, Aleksandr

Author_Institution

WEIDMANN Electr. Technol., Inc., St. Johnsbury, VT, USA

fYear

2012

fDate

10-13 June 2012

Firstpage

227

Lastpage

234

Abstract

The insulation system of 100% cellulose paper and mineral oil is a proven, reliable and economical solution successfully used in distribution transformers for many decades. The insulating paper has tremendous leverage in the optimization of distribution transformers. Different regions of the transformer insulation system impose different requirements for the material being used in those regions. This work presents data on the development (engineering) of new special grades of 100% cellulose insulating paper. The tailored properties of these new papers aim to selectively address the set of application criteria for the insulation material in the different regions of a transformer. This tailoring provides new opportunities for the optimization of the design of the insulation system and the entire transformer.

Keywords

paper; power transformer insulation; transformer oil; distribution transformer optimization; enhanced performance insulating cellulose papers; insulation material; mineral oil; transformer insulation system; Dielectrics; Materials; Oil insulation; Power transformer insulation; Stress; Windings; FEM (Finite Element Method); design; distribution transformer; dry-out; factory test; field plot; insulating paper; insulation system; partial discharge; processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation (ISEI), Conference Record of the 2012 IEEE International Symposium on

Conference_Location

San Juan, PR

ISSN

1089-084X

Print_ISBN

978-1-4673-0488-7

Electronic_ISBN

1089-084X

Type

conf

DOI

10.1109/ELINSL.2012.6251463

Filename

6251463