Fault Location on Extra-High Voltage Lines Based on Synchrophasor Measurements and Rogowski Coils

Abstract

Digital technologies in electric power engineering could be beneficial from technical, economic and social perspectives. A few improvements they can bring are better analysis of power system steady states and transients, the implementation of new approaches to relay protection algorithms and asset control; the installation of new equipment with built-in microprocessor-based units possessing advanced features unavailable in traditional architectures; the reduction in both time and cost required for putting a piece of equipment into service, etc. All of these factors along with a considerable aging of power system components push the digital technologies forward. At the same time, power system digitization has been criticized for not providing clear evidence that the overall technical performance would be improved, as well as for the absence of a well-developed procedure to check out all of the potential benefits coming from technology implementation. Advantages brought by electric power system digitization and new “digit”-based algorithms (which were impossible with old platforms) cannot be seen without a deep investigation of specific technical solutions from various points of view.