Пристрій керування запуском насосного агрегату

Abstract

Device for control of start of pump unit has sensor of temperature of environment, logical elements AND, pulse generators, digital comparators, register, adder, block for setting permitted number of starts, elements OR, block for setting time delay at start from cold state, first logical element OR-NOT, block for setting permitted number of starts from hot state, sensor of network voltage, block for setting time delay at start from hot state, block for setting permitted number of starts from cold state. There is included start block, sensor of temperature of motor, signal amplifier, analog comparators, second, logical elements OR-NOT, R-S triggers, pulse counters, second register, element of signal delay, additional digital comparators, univibrators, block of zeroing number of starts.