Terence Hazel received his BScEE degree from the University of Winnipeg, Manitoba, Canada in 1970. He worked for one year as a Power Coordination Engineer in Perth, Australia, and for several years in Frankfurt, Germany as a Consulting Engineer for the construction and renovation of industrial power distribution systems. Since 1980 he has been with the projects group of Schneider Electric (formerly Merlin Gerin) Grenoble, France where he has provided team leadership for several major international projects involving process control, power distribution and power management systems. He is a senior member of IEEE, a member of IEC TC99, and has presented several papers and tutorials at IEEE IAS conferences. His main interests are power quality and the reliability of electrical distribution systems.