Patents by Inventor Dingari Sreenivas

Dingari Sreenivas 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).

  • Methods and apparatus for removing error due to decaying offsets from measured power system currents
    Patent number: 5798932
    Abstract: A digital decaying current offset correction method and apparatus, in one aspect, separates the requirements of detecting fault existence from the requirements of detecting fault location. Once the decaying offset removal routine is initiated, current and voltage are sampled and, for each current and voltage sample, current and voltage phasors are generated. The current phasor values, which are not offset corrected, may be used to determine whether to trip a breaker. Once the breaker is tripped, the decaying offsets are removed from the current phasors. The offset corrected current phasors are then used to locate the fault.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: August 25, 1998
    Assignee: General Electric Company
    Inventors: William James Premerlani, Mark Gerard Adamiak, Dingari Sreenivas, Eyyunni Venugopal