Implementation of Hydrogenerator Overcurrent Protection with Minimum Voltage Blockage Using Embedded Systems

This paper presents a modern and efficient solution for the implementation of the hydrogenerator overcurrent protection with minimum voltage blockage. The digital equipment which implements this solution is organized around an embedded system and provides facilities for on-line monitoring of hydrogenerator electrical parameters and post-failure analysis. The protection implementation supposes parameter configuration, editing the logical function of the overcurrent protection with minimum voltage blockage, assignation of relays in the monitored process and setting time delays. The used digital equipment generates one recording at each protection triggering. The analysis of experimental results confirms the advantages of the presented solution for implementing this protection.