Scheme for synchronous machine stator turn-to-turn protection

Carlos A. Platero, Konstantinos Gyftakis, Panagiotis Panagiotou, A. Fernandez

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

This paper presents a new protection scheme for turn-to-turn fault protection in the stator windings of synchronous machines. The main difference with other methods is the calculation of the windings voltage from the phase to ground and neutral to ground voltages, which can be obtained from the monitoring provided by any commercial generator multifunction protection relay. This new method allows the employment of the protection transformers already installed in the protection scheme, simplifying and reducing the cost of the protection function. To validate this new technique, FEM simulations and numerous tests have been performed in a specially built synchronous generator with taps in one of the stator windings. In this way, several turn-to-turn faults have been created at different fault severity levels.
Original languageEnglish
Pages (from-to)716-722
JournalIet electric power applications
Issue number4
Early online date3 Feb 2020
Publication statusPublished - 1 Apr 2020


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