COMPOSITE-TYPE MULTI-CIRCUIT WATT-HOUR METER AND SYSTEM

PROBLEM TO BE SOLVED: To provide a composite-type multi-circuit watt-hour meter which concurrently measures the physical quantities, including the temperature and humidity as well as electrical energy, by considering the fact that the validity of the measured electrical energy tends to be difficult to be analyzed, since it conducts only the measurements of the electric power or of the electrical energy, in the conventional multi-circuit watt-hour meters. SOLUTION: The composite-type multi-circuit watt-hour meter 1 is equipped with a physical quantities input section for measuring the physical quantities, such as the temperature and humidity, in addition to both the voltage input section and the current input section measuring plural values of electric power. It is also equipped with an output section for outputting these measurements including electrical energy, temperatures and humidities as extra. Moreover, temperature sensors are placed near the heat sources and the entrances in stores, to maintain comfortable room temperature. COPYRIGHT: (C)2005,JPO&NCIPI