| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage battery system capable of operating a device even during an inspection of a main body of a storage battery in a small size at a low cost, without unnecessarily increasing an input/output current of the main body of the storage battery in the event of a power failure.SOLUTION: A storage battery system 1 of the present invention comprises a secondary battery 38; a storage battery control unit 39 configured to recognize a state of the secondary battery 38 and perform control on the secondary battery 38; a power conditioner 42 configured to perform control of charging and discharging of the secondary battery 38; a controller 6 configured to set parameters relating to charging and discharging of the secondary battery 38; a first switchboard 4 to which a household load L1 can be connected; and a second switchboard 5 to which system power is connected via the first switchboard 4. The second switchboard 5 is connected to a storage battery board 7 with single-phase, three-wire 200 V. Apart from the storage battery board 7, only a single-phase 100 V device as the household load L2 can be connected to the second switchboard 5, and electricity is supplied from the storage battery board 7 to the single-phase 100 V device connected to the second switchboard 5. The second switchboard 5 includes a switch circuit 29 which is switchable and supplies single-phase 100 V from single-phase 200 V of system S without via the storage battery board 7. |
