Patents by Inventor William J. McNutt

William J. McNutt 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).

  • Zero sequence current source for transformer having a nonwound tertiary
    Patent number: 4231074
    Abstract: A three-phase electrical transformer utilizes a conductor independent of the transformer windings for sensing zero sequence current upon the occurrence of a ground fault. A current transformer coupled with the independent conductor provides polarization to protective relay devices. One embodiment utilizes the transformer internal tank shield in combination with the current transformer for providing zero sequence current.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: October 28, 1980
    Assignee: General Electric Company
    Inventors: William J. McNutt, James R. Wilson
  • Transient voltage distribution improving line shield for layer wound power transformer
    Patent number: 4153891
    Abstract: An improved electrostatic shield assembly for power transformer windings provides a decreased shield to winding insulation spacing. The decreased spacing substantially improves the capacitive coupling between the windings and shield, reducing transient voltage oscillations within the windings caused by external lighting surges.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: May 8, 1979
    Assignee: General Electric Company
    Inventor: William J. McNutt