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Systems and methods for fault protection in a balancing transformer

  • US 7,279,851 B2
  • Filed: 10/20/2004
  • Issued: 10/09/2007
  • Est. Priority Date: 10/21/2003
  • Status: Expired due to Fees
First Claim
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1. A two-way balancing transformer assembly for balancing a first current and a second current, the two-way balancing transformer assembly comprising:

  • a core;

    a first balancing winding having about a first number of turns around the core, where the first balancing winding is configured to carry the first current to a first load;

    a second balancing winding having approximately the first number of turns around the core, where the second balancing winding is configured to carry the second current to a second load;

    a safety winding with a second number of turns around the core, wherein the second number of turns is smaller than the first number of turns; and

    a pair of diodes coupled in an anti-parallel configuration across the safety winding to clamp a voltage induced across the safety winding in response to imbalances between the first current and the second current.

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