| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an uninterruptible power supply system in which the installation space can be reduced without compromising the function of an output board and a maintenance bypass board. <P>SOLUTION: The uninterruptible power supply system comprises a plurality of uninterruptible power supplies 11, 12, 13 being fed from respective AC power supplies, and at least one output board 31 having a parallel bus for connecting the outputs of respective uninterruptible power supplies 11, 12, 13 in parallel via respective output switches 31a, 31b, 31c. The output board 31 is provided with maintenance bypass switches 31d, 31e, 31f connecting the respective AC power supplies and the parallel bus so as to use the parallel bus and the connection bus for the maintenance bypass switches commonly. <P>COPYRIGHT: (C)2013,JPO&INPIT |
