Comparison of mechanical strengths of three materials used as pressure plates in oil-filled transformers

Author

Kurz, R.A.

Author_Institution

Custom Materials, Inc., Chagrin Falls, OH

fYear

1993

fDate

4-7 Oct 1993

Firstpage

519

Lastpage

523

Abstract

A comparison of the physical properties of three varieties of material used as pressure rings to clamp and hold the coils of core-form oil filled transformers is given. The data is presented to serve as a guide in the selection of materials for pressure ring applications. The materials studied are polyester bonded high density pressboard, epoxy bonded electrical steel and epoxy bonded filament glass. A brief history of the development of the three systems is presented, along with a list of the features of each material and general information regarding applications relative to transformers ratings

Keywords

power transformer insulation; coils; core-form oil filled transformers; epoxy bonded electrical steel; epoxy bonded filament glass; mechanical strengths; oil-filled transformers; polyester bonded high density pressboard; pressure plates; transformer rating; Bonding; Building materials; Coils; Dielectrics and electrical insulation; Glass; Mechanical factors; Power transformer insulation; Steel; Transformer cores; Wounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Electronics Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1993. Proceedings., Chicago '93 EEIC/ICWA Exposition

Conference_Location

Chicago, IL

ISSN

1071-6270

Print_ISBN

0-7803-0847-6

Type

conf

DOI

10.1109/EEIC.1993.631248

Filename

631248