| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar power generation system in which a parallel-off switch and a power converter are installed so as to be close, in which a signal line is made short, which increases noise resistant property and which prevents malfunctions. SOLUTION: In a system, a system interconnection operation is performed between a power converter 23, which converts a direct current to be output from a solar cell 20 into an alternating current and a commercial power supply AC. When a system-interconnection protective device 25 detects an abnormality or the power failure of a commercial power supply AC, it drives parallel-off switches 22a, 22b so as to perform a system splitting operation and to be reported to the power converter 23. A linkage breaker 21 is inserted across a main line Lm, which is connected to the commercial power supply AC via a master breaker 12 and the parallel-off switches 22a, 22b. The master breaker 12 and the linkage breaker 21 are housed in a distribution board 1, and the parallel-off switches 22a, 22b are housed in a box 2 as a body which is separated from a distribution board 1. |
