CPC H02J 9/06 (2013.01) [G01R 31/086 (2013.01); H02J 3/0073 (2020.01); H01H 2300/018 (2013.01)] | 19 Claims |
1. A back-feed voltage source detecting sensor for use in an electric utility distribution system comprising:
a voltage divider circuit including
a first pair of series connected resistive elements configured to be connected to a first power line running from a distribution transformer to a load through an electric utility meter; and,
a controller including an electronic processor, the controller configured to
establish virtual neutral in the electric utility meter at ground potential, and
monitor a first voltage signal with respect to the virtual neutral to determine whether a back-feed voltage source is connected between a neutral conductor of the electric utility distribution system and the first power line.
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