To provide a device to interconnect power generating equipment to a distribution line, which is no need to install a system protection relay device, which is conventionally needed when interconnecting the power generating equipment to the distribution line.
The device to interconnect the power generating equipment to the distribution line comprises an AC/DC power conversion part 12 which converts AC power sent from an AC distribution line 10 of a system but cannot make it reverse (irreversible type), a DC bus bar 14 which transmits the DC power of the output of the AC/DC power conversion part 12, a DC power supply apparatus 16 which supplies the DC power to the DC bus bar 14, an DC/AC power conversion part 18 which converts the DC power transmitted by the DC bus bar 14, and an AC bus bar 20 which transmits the AC power converted by the DC/AC power conversion part 18; and makes it possible to supply each power to each load by connecting DC loads 22, 22, ..., to the DC bus bar 14, and AC loads 24, 24, ..., to the AC bus bar 20, respectively.
ABE RIKIYA
YOSHIOKA KENICHI
