| 摘要 |
In one aspect, the invention provides a system for protecting a plurality of circuits including a plurality of circuit protective devices wherein eac h circuit protective device includes a respective nominal current rating. Ac cording to one embodiment, the system includes current sensing circuitry con figured to measure a current of each circuit protective device; and a contro ller configured to receive each of the measured currents. According to one e mbodiment, the controller is further configured to determine a ratio between a total current being carried by all of the circuit protective devices comb ined and a total nominal current rating of all of the circuit protective dev ices combined and employ the ratio to determine a modified nominal current r ating of each circuit protective device, respectively. In a further embodime nt, the controller is configured to generate an output signal to isolate a s elected circuit selected from among the plurality of circuits based on the m odified nominal current rating of the circuit protective device included in the selected circuit.
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