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Mechatronic circuit breaker device and associated tripping method and use thereof in interrupting a high direct current

  • US 9,373,473 B2
  • Filed: 12/20/2012
  • Issued: 06/21/2016
  • Est. Priority Date: 12/23/2011
  • Status: Active Grant
First Claim
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1. A mechatronic circuit-breaker device adapted to break an electrical current flowing through electrical power transmission means, the device comprising:

  • a main branch comprising at least one main module comprising at least one sub-branch comprising at least one mechanical switch-disconnector connected in series with at least one breaker cell constituted of at least one power semiconductor element with controlled duty ratio;

    an auxiliary branch electrically in parallel with the main branch and comprising;

    at least one first sub-branch, called the timing sub-branch, and comprising at least one first breaker cell comprising a plurality of power thyristors in cascade, at least one of the timing sub-branches further comprising at least one first switching-assistance module with at least one first capacitor, electrically in parallel with its discharge resistance and a voltage surge limiter; and

    a second sub-branch, called the arming sub-branch, electrically in parallel with the timing sub-branch and comprising at least one second breaker cell constituted of a plurality of power thyristors in cascade and at least one second switching-aid module with at least one second capacitor electrically in parallel with its discharge resistor; and

    at least one main voltage surge limiter electrically in parallel with the main branch.

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