D C POWER SUPPLY SYSTEM Russian patent published in 1994 - IPC

FIELD: electrical engineering. SUBSTANCE: D.C. power supply system includes multisectional D.C. generator (solar battery) which power is controlled by shunting with power keys of individual sections connected in parallel and isolated from each other with diodes. Several sections are united into groups with N.O. contacts of relay ahead of diodes between buses of sections. Control (switching on and off) is accomplished with power keys, safety fuse is installed in circuit of each key. System tests presence of short-circuited keys. Thanks to short time connection to each other of several individual section buses into common bus of group by closing of parallel- break contacts of relay (in absence of signals for control over switching on of power keys of given group) short-circuited power keys are automatically excepted. EFFECT: enhanced reliability and efficiency. 1 dwg