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Ground potential rise monitor

United States Patent

8,223,031
July 17, 2012
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A device and method for detecting ground potential rise (GPR) comprising a first electrode, a second electrode, and a voltage attenuator. The first electrode and the second electrode are both electrically connected to the voltage attenuator. A means for determining the presence of a dangerous ground potential is connected to the voltage attenuator. The device and method further comprises a means for enabling one or more alarms upon the detection of the dangerous ground potential. Preferably, a first transmitter/receiver is connected to the means for enabling one or more alarms. Preferably, a second transmitter/receiver, comprising a button, is electromagnetically connected to the first transmitter/receiver. Preferably, the means for determining the presence of a dangerous ground potential comprises a means for determining the true RMS voltage at the output of the voltage attenuator, a transient detector connected to the output of the voltage attenuator, or a combination thereof.
Allen; Zachery Warren (Mandan, ND), Zevenbergen; Gary Allen (Arvada, CO)
The United States of America as represented by the Department of Energy (Washington, DC)
13/ 191,725
July 27, 2011
GOVERNMENT INTERESTS The United States Government has rights in this invention pursuant to the employer-employee relationship between the inventors and the U.S. Department of Energy (DOE).