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Travelling-wave based fault protection of high-voltage transmission lines

  • US 9,007,733 B2
  • Filed: 11/01/2011
  • Issued: 04/14/2015
  • Est. Priority Date: 11/01/2011
  • Status: Active Grant
First Claim
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1. A method of fault detection in a high-voltage power transmission line, the method comprising:

  • estimating a pre-fault voltage V0 at a fault location of the high-voltage power transmission line by;

    measuring a first pre-fault voltage V0A at a first end of the transmission line,measuring a second pre-fault voltage V0B at a second end of the transmission line, andcalculating the estimated pre-fault voltage as

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