Patents by Inventor Erik Koldby Nielsen

Erik Koldby Nielsen 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).

  • Electric power network
    Patent number: 7447568
    Abstract: A device for controlling at a fault condition. An apparatus is connected by a connection line to a grid point of a transmission net in an electric power network. A voltage raising apparatus includes a first branch connected to the grid point including a switching element and a second branch including a current resisting means. The voltage raising apparatus includes a computer for signal processing of a sensed fault condition on the network and for affecting the operation of the switching element such that on a fault condition at least part of the current is diverted through the voltage raising apparatus and for evaluation of further actions.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: November 4, 2008
    Assignee: ABB Research Ltd.
    Inventors: Hans Christian Christensen, Lars Gertmar, Sture Lindahl, Juhani Mantere, Erik Koldby Nielsen, Leif-Erik Wraae
  • Electric Power Network
    Publication number: 20070217105
    Abstract: A device for controlling at a fault condition. An apparatus is connected by a connection line to a grid point of a transmission net in an electric power network. A voltage raising apparatus includes a first branch connected to the grid point including a switching element and a second branch including a current resisting means. The voltage raising apparatus includes a computer for signal processing of a sensed fault condition on the network and for affecting the operation of the switching element such that on a fault condition at least part of the current is diverted through the voltage raising apparatus and for evaluation of further actions.
    Type: Application
    Filed: December 22, 2004
    Publication date: September 20, 2007
    Applicant: ABB RESEARCH LTD.
    Inventors: Hans Christensen, Lars Gertmar, Sture Lindahl, Juhani Mantere, Erik Koldby Nielsen, Leif-Erik Wraae