| 摘要 |
PURPOSE:To provide a system interlinkage type power inverter capable of inhibiting load imbalance at the time of start and at the time of operation, capable of preventing the increase of load imbalance and capable of stably supplying load with AC power. CONSTITUTION:The output line 7A of an inverter circuit 7, switches 9a and 9b connected between the non-neutral conductors 31 and 33 of a single-phase three-wire type electric circuit, detectors 13, 12 detecting the voltage V1 and V2 of the non-neutral conductors 31, 33 and a sequence protective circuit 22 receiving detecting signals from the detectors 13, 12, comparing voltage V1 and V2 and turning the switch connected to the non-neutral conductor at lower voltage on are provided. Accordingly, the non-neutral conductors, in which power consumption is increased and voltage is lowered, can be supplied with power selectively. |
