| 摘要 |
<p>A power conditioner (12) includes a grid-connected output (12e) for supplying AC power during a grid-connected operation, and an autonomous receptacle (12f) for supplying AC power during an autonomous operation. A charge-discharge unit (14) includes an autonomous receptacle (14e) for supplying AC power to appliances (K2) during the autonomous operation. A malfunction detector (14h) opens a parallel-off switch (14c) to shut off power supply from the autonomous receptacle (14e) if detecting a malfunction in an output electric circuit of the autonomous receptacle (14e).</p> |
