Summary

The report presents guidelines for performing meaningful dielectric response measurements on power transformers for diagnosing moisture content in insulation systems. Factors, like type of pressboard material as well as oil conductivity and its acidity, influence the quality of the diagnosis and the resulting errors are estimated. Study cases are reported in order to exemplify different practical situations that should be con-sidered when performing measurements.

Additional informations

Publication type Technical Brochures
Reference 414
Publication year
Publisher CIGRE
Study committees Materials and emerging test techniques (D1)
Working groups WG D1.01
File size 2 MB
Pages number 58
Price for non member 120 €
Price for member Free
Dielectric Response Diagnoses for Transformer Windings
Dielectric Response Diagnoses for Transformer Windings