Power Quality Online Monitoring Device

1) Rear-swappable design, separating strong and weak current circuits; reinforced unit chassis designed to withstand strong vibration and interference, allowing for distributed installation in a rack;

2) 32-bit high-performance Cortex-A8 ARM + DSP dual-core processor with large-capacity RAM, ensuring fast and reliable digital signal processing and logic processing capabilities;

3) 16-bit high-precision synchronous ADC, 1024 sampling points per cycle, providing high measurement accuracy and speed;

4) High-resolution TFT true-color LCD display with menu-driven operation;

5) Integrated with 2 channels of 100M Ethernet and 2 channels of RS-485.

Complies with IEC 61000-4-30 Class A standard;

Real-time multi-tasking operating system, modular programming; excellent real-time performance and high reliability;

Equipped with a network interface and dual RS-485 communication interfaces, supporting IEC61850;

Over-limit alarm function, configurable upper and lower limit parameters;

Built-in massive memory, supporting steady-state and transient waveform recording;

Supports PQDIF and COMTRADE file formats;

Supports multi-language operating interface;

Can monitor two sets of analog quantities; (Each set of analog quantities includes three phases A, B, and C, and any set of analog quantities can be configured as voltage or current at the factory according to user needs).

1) Main Monitored Electrical Parameters

①Steady-state power quality parameters: frequency deviation, voltage deviation, harmonics, interharmonics, voltage fluctuation, flicker, three-phase unbalance, and sequence components;

②Transient power quality parameters: voltage sag, voltage dip, short-term interruption;

Event recording triggering methods: threshold triggering, sudden change triggering, manual triggering;

Record file storage format: COMTRADE;

③Other power quality parameters: fundamental and harmonic voltage and current RMS values, active power, reactive power, apparent power, phase, A, B, and C three-phase power factors, etc.;

2) Data Storage

The device is equipped with 32GB of local storage. It stores at least one year's worth of power quality monitoring data, 2000 transient fault and transient event records, and overwrites them cyclically according to the first-in, first-out (FIFO) principle.

3) Communication Interface: Provides dual RS485 and dual Ethernet communication interfaces, supporting IEC61850 PQDIF;

4) Display Function: The device is equipped with a 6-inch true-color TFT LCD, capable of displaying voltage and current waveforms, fundamental and harmonic related electrical parameters, fluctuations and flicker, power and energy, imbalance, statistical data, alarms and event logs, system configuration and management, product hardware and software version information, etc.

5) Clock Calibration: The device is equipped with an IRIG-B time synchronization interface and an NTP network time synchronization interface, enabling flexible and accurate time synchronization.

6) Data Backup: When data transmission is not possible, users can copy locally stored data to a USB storage device via the device's USB interface, and then import the data into the database via the USB storage device.

Baoding Simaier Electric Co., Ltd., established on July 1, 2009, is located in the Baoding National High-tech Industrial Development Zone, Hebei Province. It is a high-tech enterprise specializing in the research and development of power system automation, relay protection, and instrumentation.