| 摘要 |
PURPOSE: A parallel load bank controlling system is provided to control various load banks of different capacities or different sizes through one human machine interface input. CONSTITUTION: A parallel load bank controlling system includes load banks(20a~20n), power meter(30a~30n), human machine interfaces(50a~50n), a main PCL or a main microprocessor(10) and a main human machine interface(12). A plurality of load banks composes a heater array and a reactor array as a load by using a parallel circuit. The main PLC or the main microprocessor independently or collectively control the load bank by parallel circuit composition of the load bank and injects or blocks the heater or the reactor by comparing a load setting value, a heater capacity, and a reactor capacity. A power meter delivers to the main PCL or the main microprocessor by measuring a current, a voltage, a power factor, a power value of each load bank The main human machine interface inputs a performance command to the whole load bank or outputs measuring values of the whole power meter. The main human interface independently or equally inputs controlled effective power and the power factor for each load bank. [Reference numerals] (10) Main PCL or a main microprocessor; (12) Main HMI; (20) Load bank; (22) Heater array; (24) Reactor array; (30) Power meter; (40) Individual PLC or individual processor; (50) Individual HMI |
