SMART STATIC ELECTRICITY METER Russian patent published in 2019 - IPC G01R22/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to electronic digital electrical equipment, devices for monitoring, accounting and analysis of production or consumption of electric energy in single-phase and three-phase alternating current circuits, can be used in various industries, science and technology, at power engineering facilities and consumers (users) of electric energy, in automated information and measurement systems for monitoring and accounting of electrical energy and other types of energy resources, mass data collection and information from various terminal devices, including counters, sensors and detectors by types of energy resources, movement, position and performed actions, as well as other intelligent equipment and their centralized program processing. Device comprises a housing, a mains rectifier, a voltage reference voltage stabilizer, a power control microcontroller and an initial reset, a standby power supply, a clamp circuit for power and load circuits, measuring elements of voltage and current as per the number of phases and neutral, modules of input differential voltage and current signals analogue processing, operational amplifiers of analogue signals with programmable amplification and feedback, multichannel analogue-to-digital converters, which include integrators, comparators, adders, digital-to-analogue converters and feedback, digital input digital processing modules, digital signals decimation, phase compensation, digital filters including high-frequency, fundamental frequency, low-frequency and selective harmonic content filters, digital signal automatic calibration modules, digital signal microprocessor with address, data and control buses, modules for timing reference signals, galvanic isolation of digital signals, output peripheral interfaces, output pulse telemetry signal, output pulse test signal, metrological nonvolatile memory, galvanic isolation of interprocessor interaction, central control microprocessor, applications and applications, clock signal generation modules, primary single-time clock, self-contained single-time clock power supply, synchronization of the counting logic, the setting frequency generator, the electronic reading device interface, the information display, the control interface, the touch pad of the keyboard and the user button, non-volatile memory devices interface modules, nonvolatile memory of standard and urgent events, non-volatile memory of automatic self-diagnostics, non-volatile memory of communication connections, interface of additional functions, standard and urgent events monitoring sensors, automatic self-diagnostics sensors, temperature, pressure and humidity sensors, external action sensors, intrusion sensors, process flow (theft) sensors, digital communication interfaces gateway, a lower level communication interface, low-power digital wireless near-range communication technologies, a high-level first digital communication interface, digital wireless long-range communication technologies, a second digital communication interface of upper level, digital near-contact communication and radio frequency identification, a functioning indication interface, optical RGB indication LEDs, a differential transformer, AC circuit monitoring modules, sensitive elements, a differential protection power key with pole contacts by the number of phases and neutral.

EFFECT: broader functional capabilities, high accuracy, discreteness and speed, synchronized vector measurements of basic parameters of alternating current circuit.

1 cl, 2 dwg