| 摘要 |
PURPOSE:To supply simultaneously stable power to 3 phases and single phase loads by supplying the power from 3-phase inverter to the 3-phase load, providing a Scott connection transformer at the same output side, and supplying power to the single phase load. CONSTITUTION:A 3-phase load 2 is connected to the output side of a 3-phase inverter 1 to supply 3-phase power, a transformer 3 in which equally rated transformers 6, 7 are connected in Scott connection is provided at the same output side, and single phase power is supplied from between the output terminals O and Q and between O and D to single phase loads 4, 5. Accordingly, the single phase load is divided so that the loads of the single phases 4, 5 become the same, thereby flowing balanced 3-phase load currents to the outputs of 3-phase inverter 1. Accordingly, stable powers can be simultaneously supplied to the 3- phase and single phase loads 2, 4, 5 and the efficiency can be improved. |
