| 摘要 |
PURPOSE:To cope with fault in distribution line, by enabling connection between a switchgear and a transformer through other switchgears when power is fed from a plurality of network distribution lines through the switchgear and the transformer to a common load bus. CONSTITUTION:A plurality of network distribution lines 11a-11c are connected through switchgears 12a-12c, transformers 13a-13c, protector fuses 14a-14c and protector circuit breakers 15a-15c with a common load bus 16. A plurality of loads 17a-17c are connected to the bus 16. Furthermore, switchgears 22, 23 are connected between connecting lines 21a-21c of the switchgears 12a-12c and the transformers 13a-13c. Upon power interruption due to fault on the network distribution line 11c, for example, the switchgears 22, 23 are closed to feed power from the network distribution lines 12a, 12b to the transformer 13c. By such arrangement, power can be fed stably to the load without requiring a transformer having particularly high capacity. |
