| 摘要 |
PURPOSE: An electronic power meter for a condominium is provided to measure the amount of power consumption according to each household and display all measured values on one screen. CONSTITUTION: Detection portions(100-100n) of n number are used for detecting voltage signals proportional to load voltages and load current applied to each distribution line. A power meter portion(100) is formed with a power calculation portion(125) and an input/output separation circuit(120). Output portions(130-130n) of n number are used for outputting each power consumption value as pulse signals. A microprocessor(150) counts the pulse signals of the output portions(130-130n) and stores the integrated power consumption values of each household to an EEPROM(160). An LCD portion(140) is used for displaying the integrated power consumption values of each household as numbers. An external communication line(170) is used for performing communication with an outside. A program loader(180) is used for loading a control program of the microprocessor(150) and ROM data.
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