| 摘要 |
In a device in which numerous capacitive loads (3-1, 3-2, 3-n) are connected to an AC power source (1), a device having a simple configuration which can surely detect an abnormality is provided. In a device having capacitive loads (3-1, 3-2, 3-n) in which a plurality of capacitive loads are connected in parallel, power is supplied from an AC power source (1) to a load group comprising the plurality of capacitive loads, the load group is divided into a plurality of small load groups (10, 20), and a current detecting sensor (CT) for detecting a current which flows in at least one small load group at a side which is closer to the load side than a branch point (4) at which the load group is divided into the plurality of small load groups and a current abnormality detecting part (5) for determining an abnormality of a load by a current detecting signal which is detected by the current detecting sensor (CT) are equipped. |
