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Fault powered, processor controlled circuit breaker trip system having reliable tripping operation

  • US 5,038,246 A
  • Filed: 08/31/1989
  • Issued: 08/06/1991
  • Est. Priority Date: 08/31/1989
  • Status: Expired due to Term
First Claim
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1. A tripping system for interrupting a current path, comprising:

  • means for interrupting the current path in response to a trip signal;

    a power supply for providing power to the means for interrupting to effect the current path interruption;

    power supply sensing means, coupled to the power supply, for indicating whether or not the power supply is presently capable of supplying the means for interrupting with a sufficient amount of power to effect the current path interruption;

    a current sensor for sensing current in the current path; and

    generation means, responsive to the current sensor and the power supply sensing means, for engaging the means for interrupting when the power supply sensing means indicates that the power supply is presently capable of supplying the means for interrupting with a sufficient amount of power to effect the current path interruption.

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