Пристрій для вимірювання спрацювання обмоток силового масляного трансформатора

Abstract

Device for measurement of operation of windings of power oil transformer has two temperature indicators, indicator of voltage, current indicator, two pulse generators, two logical elements AND, three pulse counters, adder, analog-digital trans former, digital-analog transformer, logical element OR, two comparators, RS-trigger, two functional transformers, register, two transformers of temperature to direct voltage, transformer of alternating voltage to direct voltage, at that outputs of first and second temperature indicators are connected to inputs of first and second transformers of temperature to direct voltage, respectively. Output of first pulse generator is connected to input of first pulse counter, output of adder through first functional transformer is connected to first input of first comparator second input of which is connected to output of digital-analog transformer, and output is connected to first input of RS-trigger output of which is connected to second input of first logical element AND first input of which is connected to output of second pulse generator and output is connected to first input of second pulse counter output digital bus of which is connected to input digital bus of digital-analog transformer. At that there are included four normalizing transformers, second analog-digital transformer, block for power calculation, second transformer of alternating voltage to direct one.