PROJECT TITLE :

Design and hardware implementation of a modular transient directional protection scheme using current signals

ABSTRACT :

This study presents the concept, implementation and take a look at results of a fault direction identification method that applies to identify faulty segments in transmission systems. This method relies on the wavelet analysis of the transient currents. Exchange of fault direction data among intelligent electronics devices located at different locations of network permits identification and isolation of the faulty network phase. A prototype of the fault direction identification unit was implemented using a floating point digital signal processor platform. The performance of the prototype was tested with current signals generated employing a real-time waveform playback instrument. The transient waveforms were obtained from an further high-voltage transmission system simulated in electromagnetic transient-type simulation program. Investigations were allotted below completely different eventualities like current transformer saturations, measurement noise etc.