| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply system capable of shifting to an autonomous operation to supply the power to apparatuses while preventing overload on a power conditioner without requiring a user to perform complicated work.SOLUTION: When a power conditioner 12 shifts from a system interconnection operation to an autonomous operation, a controller 15 determines whether, if the power is supplied to the power supply path on every changeover circuits 14a, the power conditioner 12 gets into an overload state based on the measurement results of current measuring devices 18 stored for each changeover circuit 14a. When the controller 15 determines that the power conditioner 12 gets into an overload state, the controller 15 controls changeover circuits 14a, which are provided to one or plural power supply paths and which are determined that the load is larger than the output capacity of the power conditioner 12, to maintain the shut-off state of the power supply paths even after shifting to the autonomous operation. |
