AUTOMATED COMMERCIAL ELECTRICITY METERING SYSTEM Russian patent published in 2018 - IPC G01R17/02 G01R21/06 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of information and measuring equipment and can be used in the existing electricity metering systems modernization and in the design of the new ones in the traction energy systems with error correction. Automated commercial electricity metering system, consisting of electric meters, personal computer and printer, between computer and printer the personal computer time automatic software adjustment electronic unit is built-in, tuned to the exact time station radio signals, equipped with quartz clock and zone, winter and summer current time automatic software adjustment and shift unit, in accordance with the invention, the automated system is additionally equipped with data transmission and reception unit, data storage unit, data calculation unit, N electric counters with time-setting units and N current transformers with correction units with correction by value, wherein the N current transformers with correction units with correction by value are connected to the N of electric counters inputs, which outputs are connected to the data transmission and reception unit input, which is in series connected to the data storage unit and the data calculation unit, and the data calculation unit output is in series connected to the personal computer and printer.

EFFECT: achieved with the claimed technical solution implementation technical result consists in the system error reduction by order of value, which allows to improve metrological characteristics, expands the operating currents and frequencies range, and also allows to reduce the external factors influence on accuracy of measurements in 4 times.

1 cl, 1 dwg