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STATIC EXCITER OF AN ELECTRIC GENERATOR, METHOD FOR RETROFITTING, AND METHOD FOR OPERATING

  • US 20110057631A1
  • Filed: 08/23/2010
  • Published: 03/10/2011
  • Est. Priority Date: 09/07/2009
  • Status: Abandoned Application
First Claim
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1. A static exciter of an electric generator comprising:

  • a main transformer having a high voltage side configured and arranged to be connected to a grid, and a low voltage side;

    a generator field circuit;

    a field circuit converter having an AC side, connected between the main transformer low voltage side and the generator field circuit;

    a capacitor bank; and

    a control unit configured and arranged to detect the status of the grid to cause at least the capacitor bank to supply energy to said generator field circuit in case the voltage of the grid falls below a predetermined voltage value;

    wherein the capacitor bank is connected between the low voltage side of the main transformer and the AC side of the field circuit converter.

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