SWITCHING DEVICE Russian patent published in 1998 - IPC

FIELD: electrical engineering. SUBSTANCE: device has circuits of power and auxiliary contacts placed between power supply and resistive- inductive load and interconnected in parallel. Power contact has fixed contact members built up of even number of brushes with pigtails of odd-numbered brushes joined into single lead connected to positive lead of power supply; those of even-numbered brushes are interconnected into other single lead which is connected to positive lead of load. Fixed contact members of auxiliary contacts are built up of range of split brushes whose parts are insulated from each other and shorted out by nonlinear resistive components connected into series circuit that shorts out power-contact circuit. EFFECT: provision for arcless switching; improved power characteristics. 1 dwg