Circuit protection system
First Claim
Patent Images
1. A method of protecting a circuit having a first circuit breaker and a second circuit breaker downstream of said first circuit breaker, the method comprising:
- detecting a fault in said circuit, said fault being downstream of said second circuit breaker;
determining a dynamic delay time for opening said first circuit breaker; and
opening said first circuit breaker after said dynamic delay time has elapsed.
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Abstract
A circuit protection system is provided that provides a dynamic delay time to an upstream circuit breaker if a fault is detected in a circuit where the dynamic delay time can be based upon the location of the fault, such as the nearest downstream circuit breaker.
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Citations
34 Claims
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1. A method of protecting a circuit having a first circuit breaker and a second circuit breaker downstream of said first circuit breaker, the method comprising:
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detecting a fault in said circuit, said fault being downstream of said second circuit breaker;
determining a dynamic delay time for opening said first circuit breaker; and
opening said first circuit breaker after said dynamic delay time has elapsed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of protecting a circuit having a first circuit breaker arranged upstream of a plurality of second circuit breakers, the method comprising:
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detecting a fault in said circuit;
determining a location of said fault;
determining a dynamic delay time for opening said first circuit breaker based at least in part upon said location of said fault; and
delaying opening said first circuit breaker until after said dynamic delay time has elapsed. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A protection system coupled to a circuit having a first circuit breaker arranged upstream of a plurality of second circuit breakers, the system comprising:
a network and at least one control processing unit operatively controlling said first circuit breaker and said plurality of second circuit breakers, said network being communicatively coupled to said circuit, said first circuit breaker, said plurality of second circuit breakers and said at least one control processing unit, wherein said at least one control processing unit determines a dynamic delay time for opening said first circuit breaker if a fault is detected in said circuit, and wherein said at least one control processing unit delays opening said first circuit breaker until after said dynamic delay time has elapsed. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A power distribution system comprising:
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a circuit having a plurality of circuit breakers, at least one power source and at least one load, said plurality of circuit breakers being arranged with at least one first circuit breaker upstream of a plurality of second circuit breakers;
a network; and
at least one control processing unit operatively controlling said plurality of circuit breakers, said network being communicatively coupled to said at least one control processing unit and said circuit, wherein said at least one control processing unit determines a dynamic delay time for opening said at least one first circuit breaker if a fault is detected in said circuit, and wherein said at least one control processing unit delays opening said at least one first circuit breaker until after said dynamic delay time has elapsed. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification