| 摘要 |
<P>PROBLEM TO BE SOLVED: To precisely measure power used by each load, even if fewer wattmeters than loads connected to a power system are used. <P>SOLUTION: This used power measuring apparatus 20 is provided with a group classifying section 26 for classifying each load into either of two or more groups classified, on the basis of the wiring structure of the power system; the positions and number of individual loads connected to the power system, and the positions and number of individual wattmeters 16 connected to the power system; a measuring method data base 30 where a measuring method prefixed for each group as a measuring method for power, used by loads classified into either of the two or more groups has been stored; and a used power calculation section 32 which acquires from the data base 30 a measuring method, corresponding to a group classified by the classifying section 26, and calculates the power used by a load classified into the corresponding group, on the basis of the measuring method acquired. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
