AUTOMATIC EMERGENCY CONTROL DEVICE Russian patent published in 2004 - IPC

FIELD: automation and computer engineering; control devices. SUBSTANCE: device that can be used for controlling sectionalized circuit breakers and switches has five registers, two counters, decoder, AND gate unit, two NOT gates, command generation unit, n-input units, complementing unit, switching unit, two bus shapers, interlocking unit, and m relays with m resistors and contact circuits, Proposed device is also provided with diagnostic means for input units and electrical isolation means affording protection against external impacts. EFFECT: enhanced reliability, noise immunity, and electric strength of primary-to-secondary circuit insulation. 1 cl, 5 dwg