POWER SUPPLY SYSTEM AND POWER SUPPLY METHOD UPON INTERRUPTION OF ELECTRIC SERVICE

摘要

A power supply system includes a power line for supplying power from a distributed power source to a load which is normally supplied with power from an electric system, upon interruption of the service from the electric system, a first switch for normally connecting the load with the power system and disconnecting them upon interruption of the service, and a second switch for connecting the load with the power line upon interruption of the electric service and disconnecting them normally. Thus, upon interruption of electric service, it is possible to use the distributed power source and supply stable power to the load.