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Phase and ground directional elements are relied on for fast and secure protection throughout the power system. Although directional relays have been applied successfully for many years, several new and unique applications and power system disturbances present challenges. Using field and laboratory data, this paper reviews fundamentals, discusses the limits to sensitivity, and shows how and why directional...
This paper presents a novel methodology for automated testing of fault locator algorithms and testing their output sensitivity. The proposed methodology is based on Quasi Monte Carlo technique implemented in SIMLAB. The proposed methodology interfaces among SIMLAB, MATLAB and EMTP/ATP programs. A case study with a number of simulated fault locations along a transmission line is presented in the paper...
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