Patents by Inventor Andrew John Philips

Andrew John Philips has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus and method for measuring geomagnetically induced currents (GIC) in high voltage transmission conductors
    Patent number: 9488678
    Abstract: An apparatus and method for measuring geomagnetically induced currents (GIC) is disclosed. The apparatus is configured to measure GICs temporarily flowing in high-voltage, 60 Hz power transmission conductors, and includes a securing means for securing the apparatus to the power transmission conductor. The apparatus further includes a flux concentrator having a toroidal ferrite core and winding wound around the core configured to capture a magnetic field from the power transmission conductor; a hall-effect sensor assembly configured to receive the magnetic field from the flux concentrator and produce a voltage signal corresponding to the magnetic field; and an electronics module configured to receive the voltage signal from the hall-effect sensor assembly, conduct measurements, and transmit the measurements to a local access point.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: November 8, 2016
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Andrew John Philips, Richard Lordan, J. Mark Major