Recommendations for changes to the D.C. supply and distribution system on APT-E (IM-ED-024)

The general d.c. supplies on APT-E are provided by two stabilised d.c. power packs operating from the 240 V a.c. supply. To maintain the supply during a failure of the a.c. a battery is floated across the output of each power pack. The batteries are nominally 24V and the output...