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Metering module high accuracy
- Feb 02, 2018 -

Three-phase rail table using the latest technology ADE7169F16 single-chip system-on-chip design completed. The ADE7169 integrates a high-precision metrology unit module and an 8052 MCU and its peripheral modules. The metrological module has high metering accuracy and can measure the operating parameters of each phase current, voltage RMS, each phase and the total active power, reactive power, grid frequency , Overload big. On-chip 8052 MCU with 16K FLASH and 512B RAM and a variety of peripheral modules to support low-power temperature compensation on-chip RTC module, LCD driver module, power management module, SPI / I2C interface module and UART communication module, with a ADE7169 will be able to achieve single-phase multi-rate watt-hour meter design.

Three-phase rail table to achieve. The principle is: the real-time voltage and current in the line are coupled by the high-precision transformer, the sampling circuits are respectively sampled and sent to the ATT7030A chip (the A / D converter is converted into a digital signal, which is output through the on-chip dedicated DSP operation Pulse), sent to the MCU by pulse, and according to pre-set time to complete the time-sharing active, reactive power measurement and maximum demand calculation, respectively, to make the corresponding treatment, and stored in EEPROM; at the same time to achieve display and output, RS485 serial data transmission.

Measure the total positive and negative active and reactive energy

Measuring phase voltage, phase current, phase and total active power, reactive power and apparent power, phase and total power factor, grid frequency

Three-phase rail table active and reactive power maximum demand statistics

Time-sharing 100-year calendar, time, leap year automatic switching, the maximum can be set two years time zone, two time tables, four rates, 8 hours, the minimum time interval of 1 minute

Meter stored within 3 months of historical settlement data, power settlement date default setting for the end of 24 (settlement of the end of the month)

7 wide temperature LCD display; active energy pulse, reactive energy pulse, alarm, phase sequence, loss of pressure, the current rate LED

Three-phase rail table active energy pulse output, reactive power pulse output, passive optical isolated output port

Three-phase rail table support RS485 communication interface, communication protocol optional (MODBUS-RTU or DL / T645 protocol)