| 摘要 |
PURPOSE:To prevent a breaker from cutting off even if the total power consumption exceeds the rated power by detecting the power consumption for each electric equipment existing in a power system, comparing it with the rated power and supplying no power to a load when the power is supplied to the load in case of exceeding it. CONSTITUTION:When an electric equipment 3 turns the load (i) 34 ON, the power consumption W1D for each electric equipment in a power system 1 is firstly inputted to a signal input circuit 31, and its total is outputted. A load controlling circuit 32 receives the total power consumption step S1), even if the power of the load (i) is added thereto, it decides whether or not to exceed the rated power of the power system 1 (S2). In case there is not surplus power, it waits until there is surplus power. In case there is surplus one (S2), the total energy value including the power of the load (i) consumed by the electric equipment 3 is outputted to the power system 1 (S3). After that, the load (i) is turned ON (S4). |
