| 摘要 |
PURPOSE: To provide an excellent power supply device for promoting energy saving while ensuring also safety of a private house by controlling and measuring power giving/receiving accurately, which could not be controlled in a photogenerating system in the past particularly for the private house. CONSTITUTION: In a power supply device S constituted by connecting a commercial power supply 1 to a load 3 through a breaker 4 also so as to supply power from a private generating power supply 2 to an intermediate connection part P between the breaker 4 and the load 3, a power receiving/measuring means 5 for measuring receiving power and a generating power measuring means 8 for measuring generating power of the private generating power supply 2 are connected respectively between the breaker 4 and the intermediate connection part P and between the private generating power supply 2 and the intermediate connection part P. Further, the device comprises an alarm means 9 opening the breaker 4 or outputting an alarm signal in the case that a total of power values, measured respectively by the power receiving/measuring means 5 and the generating power measuring means 8, exceeds a prescribed power. |
