| 摘要 |
PURPOSE:To prevent abnormal function of breaker by preventing overcurrent when a plurality of electric appliances are operated. CONSTITUTION:When a plurality of electric appliances 13a-13n are operated, data of the electric appliances connected, respectively, with subcontrollers 4a-4n are stored in the data memory means 7 in a main controller 3. When power is fed through subbreakers 2a-2i, total power being fed through the subbreakers 2a-2i is detected and when it exceeds a predetermined level, a main control means 6 selects a circuit break means 10 for a particular electric appliance corresponding to the data stored in the data memory means 7 and then interrupts thus selected appliance thus preventing the power, being fed from the subbreakers 2a-2i, from exceeding a rated capacity. |
