| 摘要 |
PROBLEM TO BE SOLVED: To provide a power distribution system allowing a user to easily change a power company as a power seller/power buyer as well as to change a limit value on a current-limiting device without extra cost.SOLUTION: A power distribution system 1 has a distribution panel 3 including a current-limiting device 4 for limiting current flowing on an electric circuit therein. The current-limiting device 4 includes: an overcurrent detection section 46 that detects vector sum of the current exceeding a predetermined limit value, which flows on a voltage phase of an electric circuit: card slots 40a, 40b for acquiring a piece of contract information between a power company as a power seller/power buyer of the power and a user; a memory 45b for storing the contract information; and an arithmetic circuit 45 that changeably sets a predetermined limit value based on the contract information. With this arrangement, a user can easily change a power company as a power seller/power buyer as well as to change a limit value on a current-limiting device without extra cost. |
