Summary

Cellulose products – paper and pressboard – are used in transformers as electric insulation and mechanical support for windings and leads. This Brochure mainly addresses the mechanical performance of the cellulose products. Products and standards are presented. Then ageing mechanisms are described, along with influence of ageing drivers as water and oxygen, and the performance in different impregnating liquids. Ageing markers, diagnostics and life management techniques are discussed. Finally, various test methods used for ageing studies are described.

Additional informations

Publication type Technical Brochures
Reference 738
Publication year
Publisher CIGRE
Study committees Materials and emerging test techniques (D1)
Working groups WG D1.53
File size 6 MB
Pages number 94
Price for non member 180 €
Price for member Free

Authors

FLYNN, Ruiz

Keywords

Technical Borchure, Materials and emerging test techniques

Ageing of liquid impregnated cellulose for power transformers
Ageing of liquid impregnated cellulose for power transformers