PAUL M. ANDERSON, PhD, (deceased) served as a professor of engineering at Iowa State University, Arizona State University, and as a visiting professor at Washington State University. He also founded consulting firm Power Math Associates, and was elected to the National Academy of Engineering in 2009. Dr. Anderson passed away in 2011. CHARLES F. HENVILLE is the President and Principal Engineer of Henville Consulting, Inc. He is a Fellow of the IEEE Power and Energy Systems Society, and past Chairman of the Power Systems Relaying Committee of the IEEE Power and Energy Systems Society. RASHEEK RIFAAT is a Technical Director, Electrical with more than 40 years of Canadian and overseas experience with various projects, ranging from installation of control panels and 600 V MCCs for material handling systems to large 800 MW thermal generating stations. BRIAN JOHNSON, PhD, is a University Distinguished Professor of Electrical Engineering and Schweitzer Engineering Laboratories Endowed Chair in Power Engineering. He is a Senior Member of the IEEE, and an Individual Member of CIGRE. SAKIS MELIOPOULOS, PhD, is a Distinguished Professor at Georgia Tech. He is the co-inventor of the Smart Ground Multimeter and the Macrodyne PMU-based Harmonic Measurement System for transmission networks.