| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage system which can cope with a long time of power failure by supplying power from a storage battery to indispensable minimum load apparatuses when a commercial power gives out, and also can cope with it, even if the user changes the installation place of the load apparatus due to pattern change or the like of the room. SOLUTION: In a power storage system where a system switching device 2 is connected in the system for supplying a commercial power source 1 to load apparatuses 15-19 and the system switching device switches the system into a charge system leading to a storage battery 4 via a bidirectional inverter 3 from the commercial power source 1 or a power supply system leading to the load apparatuses 15-19 via the bidirectional inverter 3 from the storage battery 4, the system switching device 2 is provided with a power failure detector 27 which detects the power failure of the commercial power source 1, and it is switched to supply the power of the storage battery 4 only to an emergency plug socket by the command of the power failure detector 27 at the failure of the commercial power. |
