| 摘要 |
PROBLEM TO BE SOLVED: To provide a booster unit which does not spoil indoor and outdoor sight, by omitting a wiring which is to be used for connection from the booster unit to a connection box. SOLUTION: A booster part 3, a control circuit 15 and a trip signal generating part 28 are arranged in the booster unit 1. A DC power from a nonstandard solar battery string 2b is stepped up by using a booster 3, subjected to constant voltage control by using a control circuit 15, and supplied to an inverter device 4 together with a DC power from a standard solar battery string 2a. As a result, power is supplied to a commercial power system 5. |
