Power Supply System

Abstract: A power conditioner (12) is equipped with an interconnection output unit (12e) for supplying AC power during grid connection operation and a stand alone socket (12f) for supplying AC power during stand alone operation. A charging and discharging unit (14) is equipped with a stand alone socket (14e) for supplying AC power to devices (K2) during the stand alone operation. An abnormality detection unit (14h) opens a parallel off switch (14c) to cut off the power supply from the stand alone socket (14e) when detecting an abnormality of an output electrical line of the stand alone socket (14e).

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