main features

1. The EDA9133D-LORA product has outstanding performance and more features with a 32-bit ARM processor as its core; Adopting high-performance and high-speed AD chips for synchronous AC sampling, digital filtering and calibration, and reasonable data processing algorithms to ensure the reliability and accuracy of data; The communication interface, power supply, voltage input, current input, and power pulse output are all isolated from each other, ensuring the reliability of the product;
2. Integrating comprehensive three-phase AC power parameter measurement, harmonic analysis, and network communication; Truly realizing the management function of power distribution site;
3. Three meter method for high-precision measurement of over 40 three-phase electrical parameters of three-phase three wire/four wire AC circuits, including voltage, current, active/reactive/apparent power, power factor, frequency, active/reactive energy, zero sequence current, voltage imbalance, voltage/current K value, and 0-51 harmonic components of voltage/current;
4. By using AC sampling technology, four quadrant power measurement of power receiving/feeding lines has been achieved, with high-precision measurement of positive/negative active energy and inductive/capacitive reactive energy;
5. The statistics of harmonic distortion THD, K-factor, three-phase voltage, current imbalance, zero sequence current, and maximum/minimum/average values of various electricity quantities are convenient for users to observe and analyze the power supply quality of the power grid in a timely manner and monitor three-phase line anomalies;
6. The input is a three-phase AC voltage and current of 45-75Hz; The voltage range (phase voltage) can be selected from 60V and 250V; The current range can be selected as 100A, 200A, etc. (mA level input is used for the selection of current transformers). The overload capacity can be measured correctly with an input of 1.2 times the range, and the instantaneous (<1s) current is 10 times and the voltage is 3 times the range without damage.
7. The innovative combination structure and appearance design ensure that the product has a super small volume but stronger functionality;
8. Strong anti-interference capability design, digital automatic calibration and maintenance free design, industrial grade components, standardized production processes and testing, ensuring that the product is suitable for various complex environments and harsh places;
9. Multiple optional power supply modes: AC85-265V;
10. Standard RS-485 communication interface, MODBUS-RTU communication protocol; Capable of network communication with various brands of PLCs, RTUs, and industrial control configuration software;
11. Wireless Lora communication interface, communication center frequency band 470M. One click networking with Lichuang collector, collector automatically assigns channels and communication addresses.
12. The product can be widely used in distributed power system monitoring, substation comprehensive automation system, unmanned substation, low-voltage intelligent distribution system, intelligent switchgear/distribution panel, intelligent box transformer and building automation system;