On-line diagnostics of transformer winding insulation failures, by Park`s vector approach

Oliveira, L. M. R.; Cardoso, A. J. Marques

http://hdl.handle.net/10400.1/27

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Authors

Oliveira, L. M. R.

Cardoso, A. J. Marques

Abstract(s)

This paper presents a non-invasive approach for diagnosing winding insulation failures in three-phase transformers, which is based on the on-line monitoring of the primary and secondary current Park's Vector. Experimental and simulated results demonstrate the effectiveness of the proposed technique, for detecting winding inter-turn insulation faults in operating three-phase transformers.