... in different occasions: a. 31 wiring plan: single battery pack, single-bus not sectionalizing, no voltage-reduction set, single ... outputting single voltage; b. 33 wiring plan: single battery pack, single-bus not sectionalizing, equipped with voltage-reduction set, ... inside and other components,capable of managing and controlling the power system;7. has functions of tele-control,tele-metering, ...