At the end of 2011, to prepare for the Energy Infrastructure and Modernization Act passed by the Illinois General Assembly, ComEd initiated a pilot project to evaluate the addition of a newer generation of loop-scheme reclosers to its installed base of approximately 1,600 12-kV reclosers. For the pilot, ComEd chose G&W Electric’s Viper-ST reclosers fitted with SEL-651R1 recloser controls.