Patents by Inventor Vaclav Prokop

Vaclav Prokop 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).

  • Method and means for complex, universal earth fault protection in power high and medium voltage system
    Patent number: 10320184
    Abstract: A method and apparatus for earth fault in power high and/or medium voltage system may enhance a protection system for special technical task, which is to measure residual current, the invention is, that for earth fault protection in power system or a part of power system, for example, but not limited to, cable connectors, wherein residual current is determined indirectly by the calculation from the phase current values, obtained from the output signals of Rogowski-coil based current sensors.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: June 11, 2019
    Assignee: ABB SCHWEIZ AG
    Inventors: Emil Kalina, Vaclav Prokop
  • METHOD AND MEANS FOR COMPLEX, UNIVERSAL EARTH FAULT PROTECTION IN POWER HIGH AND MEDIUM VOLTAGE SYSTEM
    Publication number: 20160134101
    Abstract: A method and apparatus for earth fault in power high and/or medium voltage system may enhance a protection system for special technical task, which is to measure residual current, the invention is, that for earth fault protection in power system or a part of power system, for example, but not limited to, cable connectors, wherein residual current is determined indirectly by the calculation from the phase current values, obtained from the output signals of Rogowski-coil based current sensors.
    Type: Application
    Filed: June 5, 2014
    Publication date: May 12, 2016
    Inventors: Emil Kalina, Vaclav Prokop