Patent ID: 8149128
Filing Date: 2012-04-03
Classification: G01R

Abstract:
1. A method for the detection of ground potential rise comprising: a. selectively attenuating the voltage between a first electrode and a second electrode producing an attenuated voltage equal to the voltage between said first electrode and said second electrode divided by an attenuation factor; b. determining the true RMS voltage of said selectively attenuated voltage producing an attenuated true RMS voltage using a computer, microcontroller, or an application specific integrated circuit; c. multiplying said attenuated true RMS voltage by said attenuation factor producing a calculated true RMS voltage using a computer, microcontroller, or an application specific integrated circuit; d. enabling a first alarm at a local location when said calculated true RMS voltage exceeds a first predetermined voltage threshold at the direction of a computer, microcontroller, or an application specific integrated circuit; e. transmitting a first alarm acknowledgment signal at a remote location; and f. receiving said first alarm acknowledgment signal at said local location and disabling said first alarm at said local location.