| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a connection box and a system interconnection inverter device which can easily find an abnormality in a boosting circuit of a connection box without causing increase in a manufacturing cost.SOLUTION: In a solar power generation system which consists of a plurality of solar cell modules 2, a connection box 4, and a power conditioner 5, the connection box 4 has a plurality of boosting circuits 6 in accordance with the number of circuits of the solar cell modules 2. If an abnormality is detected in any of the boosting circuits 6, the boosting circuits 6 other than the boosting circuit 6 in which the abnormality is detected are made to perform a predetermined boosting operation which is different from usual operation to change input of a power conditioner 5, the power conditioner 5 is informed of the abnormality in the boosting circuit 6, and a display section 9 of the power conditioner 5 is made to display the abnormality.</p> |
