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Fast Detection of Grid Faults using Synchronized Measurements

A new methodology for fast detection of power grid faults is proposed in this paper based on synchronized measurements. The methodology is based on real data recorded during a fault that occurred on a 400 kV transmission line. The data were processed and analyzed using Excel. The results are intended to guide the authors in defining a new strategy for fast detection of power systems faults, eventually by developing new protection functions to be included in adaptive protection equipment. The intention is to change the philosophy of the transmission line protection by using the rate of change of voltage angle, rate of change of current angle and other information provided by synchronized and high sampling intervals instead of using current amplitude derivatives.