Patents Assigned to Bay Controls, Inc.
  • Patent number: 7038423
    Abstract: A method and an apparatus for controlling ride through of an induction motor by detecting a power loss from a power supply connected to the induction motor, disconnecting the induction motor from the power supply, monitoring a line voltage of the power supply, monitoring a back emf voltage generated by the induction motor and monitoring a phase differential between the line voltage and the back emf voltage. It is determined whether the monitored voltages are within a predetermined voltage limit and the phase differential is within a predetermined phase limit and the power supply is re-connected to the induction motor in response to the monitored voltages being within the predetermined voltage limit and the monitored phase differential being within the predetermined phase limit.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: May 2, 2006
    Assignee: Bay Controls, Inc.
    Inventors: Thomas A. Reed, Douglas A. Wittenmyer
  • Publication number: 20050248308
    Abstract: A method and an apparatus for controlling ride through of an induction motor by detecting a power loss from a power supply connected to the induction motor, disconnecting the induction motor from the power supply, monitoring a line voltage of the power supply, monitoring a back emf voltage generated by the induction motor and monitoring a phase differential between the line voltage and the back emf voltage. It is determined whether the monitored voltages are within a predetermined voltage limit and the phase differential is within a predetermined phase limit and the power supply is re-connected to the induction motor in response to the monitored voltages being within the predetermined voltage limit and the monitored phase differential being within the predetermined phase limit.
    Type: Application
    Filed: September 20, 2004
    Publication date: November 10, 2005
    Applicant: Bay Controls, Inc.
    Inventors: Thomas Reed, Douglas Wittenmyer