Single phase electric larceny preventing electricity meter and method for preventing electric larceny
The present invention relates to a electric larceny preventing electricity meter and its operation method, and belongs to the field of the manufacture of electricity meter. The electric larceny preventing electricity meter includes power source managing module with power source input connected to th...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The present invention relates to a electric larceny preventing electricity meter and its operation method, and belongs to the field of the manufacture of electricity meter. The electric larceny preventing electricity meter includes power source managing module with power source input connected to the AC power supply, power supply mutual inductor and battery, and output connected to power source end of monochip computer MSP430FE42X; current unbalance detecting circuit with output connected to current sample signal input of the monochip computer; electric larceny preventing detection circuit with signal output connected to current sample signal input of the monochip computer; voltage detecting circuit with signal output connected to voltage sampling signal input of the monochip computer; and monochip computer MSP430FE42X with drive module connected to LCD, receiving and sending module connected to communication interface and pulse output interface for calibration. |
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