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What is Effective Health Index for Transformers about?
This document summarizes diagnostic methods for assessing the condition of aging power transformers, including dissolved gas analysis, dielectric response measurements, frequency response analysis, and partial discharge measurements. It describes applying these methods on a real 133 MVA power transformer from 1967 to evaluate moisture levels before and after drying treatments. Dielectric methods found higher moisture in the tertiary winding insulation as expected due to lower operating temperatures. Partial
- Author
- Amanda Melo
- Language
- EN