| 摘要 |
PURPOSE:To facilitate the replacement of a battery and besides, prevent it from losing the DC power backup function of a battery by dividing a plurality of batteries connected in series into n groups, and connecting a diode to every group of batteries divided, in parallel. CONSTITUTION:In the case of replacing the battery of an uninterruptible power supply equipment, the replacement work is performed in the unit of each group of batteries 17j-17n, so the capacity of the battery only drops by 1/n, by the work of the diodes 181-18n connected in parallel to each group of batteries 17j-17n, and the function of the battery is kept. Moreover, if one wants to avoid the capacity of the battery decreasing by 1/n during the replacement work, on may remove the batteries in the group to be replaced and perform the replacement after preparing 1/n times as many as temporary batteries corresponding to each battery group 17j-17n, and providing terminals To-Tn, and connecting 1/n times as many as batteries between these terminals To-Tn in every battery group 17j-17n. Hereby, the replacement work of the battery can be performed, and the Dc power backup function of the battery can be prevented from being lost. |
