| 摘要 |
PURPOSE:To reduce the facility capacity of generating and transmitting a current by sequentially starting a plurality of motors for driving loads in no load state, and gradually connecting the loads to the respective motors after the all motors reach no load operation state. CONSTITUTION:First motor is first started without load. When the first motor becomes rated operation state, second motor is also started in no load state. Thereafter, (n) pieces of motors are similarly sequentially started without load. After the all motors are started, loads are gradually connected to the respective motors. In this manner, the maximum starting current of the facility can be suppressed to small value, and the capacity of the facilities for generating and transmitting currents can be reduced. |
