Transformers on-load exciting current Park`s vector approach as a tool for winding faults diagnostics

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

http://hdl.handle.net/10400.1/55

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Authors

Oliveira, L. M. R.

Cardoso, A. J. Marques

Cruz, S. M. A.

Abstract(s)

This paper presents the development of a new approach for diagnosing the occurrence of inter-turn short-circuits in the windings of three-phase transformers, which is based on the on-line monitoring of the on-load exciting current Park's Vector patterns. Experimental and simulated results demonstrate the effectiveness of the proposed technique for detecting winding inter-turn insulation faults in operating three-phase transformers.