| 摘要 |
<p>The electrical energy feed system includes a principal a.c. supply source (31,32), used in normal conditions; an energy storage system (37), used as a standby secondary d.c. supply source; and a unit for fault detection in the principal electrical energy source, which controls the switching over (36) to the standby source. Each of the electronic devices (341,342,343) is associated with a distinct energy converter (351,352,353,11) that delivers the internal electrical supply necessary for the equipment, and is fed directly by the principal supply source (31,32), in normal condition or directly by the secondary supply source (37), in standby condition.</p> |
