| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power distribution system in which a distributed power supply device side can detect quickly and surely that the power distribution system is in a state of interruption of electric service and individual operation. <P>SOLUTION: An inventive power distribution system includes: a section switch 3 interposed in a high voltage distribution line 1; and a pole-mounted transformer 7 having primary-side terminals 7a, 7b connected with high voltage distribution lines 1b1, 1c1 and secondary-side terminals 7c to 7e connected with low voltage distribution lines 9a to 9c. In this power distribution system, a transformer primary-side short circuit switch 13 is prepared in parallel between the primary side terminals 7a, 7b of the pole-mounted transformer 7. The transformer primary-side short circuit switch 13 is closed when the section switch 3 is opened, thus short-circuiting between the primary side terminals 7a, 7b of the pole-mounted transformer 7. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
