Patents Assigned to Smit Transformation B.V.
  • Frequency-dependent overvoltage protective device for high voltage appliances
    Patent number: 4943887
    Abstract: An asymmetrical overvoltage protection circuit includes a series connection of varistors with a capacitance in parallel with only one of the varistors. The asymmetry may also involve a parallel connection of an inductance with the other of the varistors.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: July 24, 1990
    Assignee: Smit Transformation B.V.
    Inventor: Ajit K. Bose