Patents by Inventor John Gorecki

John Gorecki 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).

  • Capacitive compensated voltage sensor
    Patent number: 11287456
    Abstract: A capacitive voltage sensor for estimating voltage on a power line. The sensor includes a dielectric bushing surrounding the line, and an annular conductor formed in the bushing and being capacitively coupled to the line, where a first capacitance is defined between the line and the annular conductor and a second capacitance is defined between the annular conductor and ground. The sensor also includes a capacitance compensation circuit having an amplifier including a first terminal electrical coupled to the annular conductor, and first and second capacitance compensation capacitors electrically coupled to the terminals of the amplifier, where the compensation capacitors are made of different materials having different dielectric constants, and where the materials of the compensation capacitors are selected so as to compensate for changes in the first and second capacitances in response to temperature changes. Also, a thermistor is provided in a resistor compensation circuit to provide resistance compensation.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: March 29, 2022
    Assignee: S&C Electric Company
    Inventors: Zitao Wang, Brian P Mugalian, John Gorecki
  • CAPACITIVE COMPENSATED VOLTAGE SENSOR
    Publication number: 20200333385
    Abstract: A capacitive voltage sensor for estimating voltage on a power line. The sensor includes a dielectric bushing surrounding the line, and an annular conductor formed in the bushing and being capacitively coupled to the line, where a first capacitance is defined between the line and the annular conductor and a second capacitance is defined between the annular conductor and ground. The sensor also includes a capacitance compensation circuit having an amplifier including a first terminal electrical coupled to the annular conductor, and first and second capacitance compensation capacitors electrically coupled to the terminals of the amplifier, where the compensation capacitors are made of different materials having different dielectric constants, and where the materials of the compensation capacitors are selected so as to compensate for changes in the first and second capacitances in response to temperature changes. Also, a thermistor is provided in a resistor compensation circuit to provide resistance compensation.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 22, 2020
    Applicant: S&C Electric Company
    Inventors: Zitao Wang, Brian P. Mugalian, John Gorecki