Summary

The guide describes the normal ageing processes in the cellulose of oil impregnated insulation systems for transformers. The various cellulose materials and their properties are described. New knowledge on oxidation and hydrolysis and the influence of the chemical condition of oil and of paper together with thermal stresses are described. Also possibilities for diagnostics and for maintenance of the cellulose are discussed.

Additional informations

Publication type Technical Brochures
Reference 323
Publication year
Publisher CIGRE
Study committees
  • Materials and emerging test techniques (D1)
Working groups TF D1.01.10
File size 2 MB
Pages number 88
Price for non member 170 €
Price for member Free
Ageing of cellulose in mineral-oil insulated transformers
Ageing of cellulose in mineral-oil insulated transformers