Summary

The TB provides an introduction of the FRA test for detecting winding movement and presents recommendations for standardisation of good measurement practices. It also gives a description of typical responses and controlling factors, together with a collection of case examples, which illustrate how various types of winding movement can be detected by FRA.

Additional informations

Publication type Technical Brochures
Reference 342
Publication year 2008
Publisher CIGRE
Study committees Power transformers and reactors (A2)
Working groups WG A2.26
File size 3 MB
Pages number 67
Price for non member 130 €
Price for member Free
Mechanical-condition assessment of transformer windings using Frequency Response Analysis (FRA)
Mechanical-condition assessment of transformer windings using Frequency Response Analysis (FRA)