Circuit breaker with integrated power measurement
Abstract:
A circuit apparatus measures, records, transmits, and displays actual and estimated power consumption in a branch circuit of an electrical distribution system. The apparatus includes a display driver coupled to one or more current sensors which derives or estimates power consumption from measured current. The accuracy of power consumption is improved by additional measurement of actual supplied voltage. A plurality of current sensors determine differential current to provide ground fault interruption to a desired range of precision. A store enables display of surge and average current measurements and power measurements in addition to immediate results.
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