Patents by Inventor Chul-Kwang Choi

Chul-Kwang Choi 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).

  • Apparatus for removing the partial discharge noise of an electrical power facility and apparatus for detecting a partial discharge generated section
    Patent number: 8843349
    Abstract: An apparatus being capable of quickly removing noise from a partial discharge signal generated from the electrical power facility such as a gas insulated switchgear (GIS) and the like, and an apparatus for detecting a partial discharge generated section. The apparatus for removing noise from a partial discharge signal comprises a PD signal detection unit configured to detect a PD signal of the power facility and to detect and output peaks of the PD signal in respective preset time intervals, a noise signal detection unit configured to detect a noise signal outside the power facility and to detect and output peaks of the noise signal in the respective preset time intervals, and a noise removal unit configured to eliminate the peaks of the PD signal output in time intervals identical to those in which the peaks of the noise signal detection unit are output.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 23, 2014
    Assignee: Power System Diagnosis Tech., Inc.
    Inventors: Chang-Won Kang, Jae-Ok Choi, Yeung-Noh Kim, Chul-Min Hwang, Chul-Kwang Choi
  • APPARATUS FOR REMOVING THE PARTIAL DISCHARGE NOISE OF AN ELECTRICAL POWER FACILITY AND APPARATUS FOR DETECTING A PARTIAL DISCHARGE GENERATED SECTION
    Publication number: 20110172970
    Abstract: The present invention relates to an apparatus for removing the partial discharge (PD) noise of an electrical power facility that is capable of quickly removing noise from a partial discharge signal generated from the electrical power facility such as a gas insulated switchgear (GIS) and the like, and an apparatus for detecting a partial discharge generated section.
    Type: Application
    Filed: July 14, 2009
    Publication date: July 14, 2011
    Inventors: Chang-Won Kang, Jae-Ok Choi, Yeung-Noh Kim, Chul-Min Hwang, Chul-Kwang Choi