Experimental Testing of a Neural Network Based Digital Differential Relay for Synchronous Generators

This paper describes the laboratory implementation and real-time test results of a new neural network (NN) based digital differential relay used for detecting faults and classifying internal faults in the stator winding of synchronous generators. Details of the software written to enable the operation of the relay are described. Behavior of the NN based relay is observed and the experimental results are presented. Index Terms--Digital differential protection, generators, microprocessor based instrument, neural networks.