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Author

Utku Gagacı

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Open access Jul 2026

Analysis of the Impact of Current Transformer Polarity on the Performance of Directional Protection Elements in Protective Relays

This paper demonstrates that the polarity of the current transformer (CT) is a critical determinant of directional overcurrent protection selectivity. Analytical modeling and hardware-in-loop testing confirm that a reversed CT polarity introduces a predictable 180° phase shift in the measured current. This phase invers...

Sude Hatem, Utku Gagacı · 0 citations

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