INTERLOCKING DEVICE FOR TWO-PANEL CONTROL Russian patent published in 1995 - IPC

FIELD: control of process mechanisms. SUBSTANCE: device has two selector switches 1,12, four isolating capacitors 2,9,11,13, three flip-flops 3,10,14, two AND gates 4,15, two switches 5,6, four pilot lamps 7,8,16,19, voltage source with buses 17,18. EFFECT: improved safety of control and enlarged functional capabilities due to provision for separate disconnection of each panel without using selector switch of parallel panel and sue to provision for interlocking voltage supply to panels upon disconnection at the moment of next voltage supply. 1 dwg