Patents by Inventor Alex Polley

Alex Polley 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).

  • Patent number: 10598733
    Abstract: Monitoring apparatus for monitoring partial discharge activity in an AC electrical system comprises: a pair (60) of high- and low-frequency sensors; a timing module arranged to receive a cyclic signal from the low-frequency sensor and to provide a timing signal derived from the timing of successive cycles of the cyclic signal; and a monitoring unit (66) arranged to digitise a signal from the high-frequency sensor, to capture the digitised signal as consecutive data blocks of varying duration, and to trigger the capture of each data block in response to the timing signal. A condition monitored electrical system comprises a variable-speed drive (VSD) and a motor (M) operated by the drive, wherein the pair (60) of sensors is arranged at an end of a cable supplying power from the drive to a winding of the motor.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: March 24, 2020
    Assignee: High Voltage Partial Discharge Limited
    Inventors: Riccardo Giussani, Steve Joures, Alex Polley, Lee Renforth, Malcolm Seltzer-Grant
  • Publication number: 20180120380
    Abstract: Monitoring apparatus for monitoring partial discharge activity in an AC electrical system comprises: a pair (60) of high- and low-frequency sensors; a timing module arranged to receive a cyclic signal from the low-frequency sensor and to provide a timing signal derived from the timing of successive cycles of the cyclic signal; and a monitoring unit (66) arranged to digitise a signal from the high-frequency sensor, to capture the digitised signal as consecutive data blocks of varying duration, and to trigger the capture of each data block in response to the timing signal. A condition monitored electrical system comprises a variable-speed drive (VSD) and a motor (M) operated by the drive, wherein the pair (60) of sensors is arranged at an end of a cable supplying power from the drive to a winding of the motor.
    Type: Application
    Filed: April 1, 2016
    Publication date: May 3, 2018
    Inventors: Riccardo Giussani, Steve Joures, Alex Polley, Lee Renforth, Malcolm Seltzer-Grant