Service voltage load protection in an electric utility meter
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United States of America Patent
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Feb 2, 2016
Grant Date -
Sep 19, 2013
app pub date -
Dec 20, 2012
filing date -
Dec 20, 2011
priority date (Note) -
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Abstract
An arrangement for controllably disconnecting a utility power service from a load includes a utility meter housing, a switch and a processing circuit. The utility meter housing includes metrology circuitry configured to generate metering information regarding electrical power provided to the load. The switch is configured to controllably interrupt a connection between the utility power service and the load. The switch has an open state and a closed state. The processing circuit is configured to determine whether a line voltage varies from an expected value by more than a predetermined amount over a predetermined amount of time. The processing circuit is further configured to cause a change in state of the switch based on the determination.
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