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Device for connecting a VSC converter to a source of alternating voltage

  • US 5,995,394 A
  • Filed: 02/26/1998
  • Issued: 11/30/1999
  • Est. Priority Date: 10/10/1997
  • Status: Expired due to Fees
First Claim
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1. A device for connecting a voltage source converter to a source of alternating voltage having multiple phases through a plurality of inductances, said VSC converter providing a direct current voltage to a capacitor for a power transmission plant comprising:

  • a first breaking means connected to said source of alternating voltage multiple phases for individually interrupting each of said multiple phases;

    an additional circuit breaking means connecting said first breaking means in series with one of said phases and said voltage source converter;

    a resistor connected across said first breaking means for supplying current from said one of said phases to said additional circuit breaking means when said first breaking means is in an open condition; and

    circuit means connected to said first breaking means and said additional circuit means, said circuit means changing said additional circuit breaking means from an interrupting condition to a closed condition, and subsequently changing said first breaking means from an interrupting condition to a closed condition.

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