Patents by Inventor Vitaly Gelman

Vitaly Gelman 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).

  • Semiconductor high voltage electrical energy transmission switching system and method
    Patent number: 6552598
    Abstract: A method for controlling fault interruption in a high voltage electrical energy transmission system semiconductor high voltage electrical energy transmission switching system which includes a multiple stack of power semiconductor SCR thyristor circuit sections arranged for single phase or three-phase operation with each section of the stack comprising; a pair of input and output terminals, a plurality of switching thyristors connected in series between the input and output terminals, an auxiliary power transformer having at least three windings with first and second windings interconnecting the input and output terminals of one section to the respective output and input terminals in each adjacent section of the stack such that the voltage difference between the first and second transformer windings is limited to the maximum voltage across the section.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: April 22, 2003
    Inventor: Vitaly Gelman
  • Semiconductor high voltage electrical energy transmission switching system and method
    Publication number: 20030016073
    Abstract: A method for controlling fault interruption in a high voltage electrical energy transmission system semiconductor high voltage electrical energy transmission switching system which includes a multiple stack of power semiconductor SCR thyristor circuit sections arranged for single phase or three-phase operation with each section of the stack comprising; a pair of input and output terminals, a plurality of switching thyristors connected in series between the input and output terminals, an auxiliary power transformer having at least three windings with first and second windings interconnecting the input and output terminals of one section to the respective output and input terminals in each adjacent section of the stack such that the voltage difference between the first and second transformer windings is limited to the maximum voltage across the section.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 23, 2003
    Applicant: VG CONTROLS
    Inventor: Vitaly Gelman