DEVICE FOR MONITORING ELECTRICAL ENERGY CHARACTERISTICS Russian patent published in 1994 - IPC

FIELD: measurement technology in power engineering. SUBSTANCE: device has measurement moment setting element 1, instant-voltage-to-digital-code converter 2, rated voltage setting element 3, control unit 4, maximum and minimum code separators 5 and 6, respectively, squarers 7 and 8, arithmetic units 9 and 10, adding counter 11, square-root extractor unit 12, OR gate unit 13, ratio meter 14, and display unit 15. EFFECT: improved measurement accuracy due to introduction of OR gate unit 13, additional minuend input, additional subtrahend input, and additional output in first arithmetic unit 10, and relevant ties. 3 cl, 5 dwg