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- Power transformers winding fault diagnosis by the on-load exciting current extended Park's vector approachPublication . Oliveira, L. M. R.; Cardoso, A. J. Marques; Cruz, S. M. A.This paper presents the application of the on-load exciting current Extended Park's Vector Approach to diagnose incipient turn-to-turn winding faults in operating power transformers. Experimental and simulation test results demonstrate the effectiveness of the proposed technique, which is based on the spectral analysis of the AC component of the on-load exciting current Park's Vector modulus.
- Transformers on-load exciting current Park`s vector approach as a tool for winding faults diagnosticsPublication . Oliveira, L. M. R.; Cardoso, A. J. Marques; Cruz, S. M. A.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.