Products and Services

Products and Services

We have established a product portfolio that is tailored for multiple scenarios and boasts high reliability, with wide-ranging applications in strategic fields such as smart energy storage, industrial control, power electronics, and smart cities, providing stable and efficient technological support for the energy transition and the development of smart urban infrastructure.

Power Electronics

High-Precision Power Quality Monitoring Terminal

Core Features

● “Dual-brain” architecture, all-around and precise
It integrates a dual-core ARM Cortex-A9 processor and an Artix-7 architecture FPGA. The FPGA handles high-speed, high-precision data acquisition and real-time computation, while the ARM takes charge of complex analysis, display, communication, and system management—delivering performance and efficiency that far surpass traditional solutions.

● Industry-leading measurement accuracy
Supports Class A (highest level) power quality monitoring, fully compliant with IEC 61000-4-30 standards, with measurement accuracy up to 0.1%, capable of detecting even the slightest grid disturbances.

● Panoramic Power Parameter Monitoring
Real-time monitoring of all power quality parameters, including up to the 127th harmonic, interharmonics, voltage swells/dips, short-duration interruptions, flicker, power factor, and unbalance.

● Powerful edge computing capabilities
Power quality reports, event analysis, fault recording, and intelligent early warnings can all be generated locally, significantly reducing the analytical workload at the main station.

● Fully connected industrial internet with all interfaces
It integrates multiple industrial interfaces, including Gigabit Ethernet, RS-485, and USB, and supports protocols such as IEC 61850 and Modbus, enabling seamless integration with Energy Management Systems (EMS) or IoT cloud platforms.

Email: sales@sengkeda.com

Core specification parameters

Parameter Category Detailed indicators
Main processor Xilinx XC7Z020-2CLG400I
Processing System (PS) Dual-core ARM Cortex-A9 @ 667MHz
Programmable Logic (PL) 85K Logic Cells (approximately equivalent to 13,300 LUTs)
System memory Onboard 512MB DDR3L
Storage Onboard 8GB eMMC (optional larger capacity) + MicroSD card slot
ADC Channel and Accuracy 16-bit high-precision ADC, 6 channels (3-phase voltage + 3-phase current) for synchronous sampling
Sampling rate ≥ 256 points per cycle (12.8 kHz @ 50 Hz); supports higher sampling rates.
Measurement accuracy Voltage/Current: 0.1% RD, Power: 0.2% RD, Harmonics: ≤1%
Follow the standard IEC 61000-4-30 Class A (highest level)
Operating temperature -40°C ~ +70°C (Industrial-grade standard)
Power supply AC/DC 85-265V wide-range AC/DC power supply

Interface Information

Measurement and Acquisition Interface (primarily implemented on the FPGA side)

Interface Type Quantity/Specification Function Description
Voltage/Current Input 6-way differential input (Phoenix terminal) Directly connect to the secondary-side signals of PTs (voltage transformers) and CTs (current transformers).
ADC interface High-speed SPI/Parallel Control an external 16-bit high-precision ADC chip to achieve synchronous sampling.
Synchronized clock GPS/Beidou Module Interface (PPS) Receive satellite synchronization signals to achieve microsecond-level precise synchronization among multiple devices, meeting Class A standards.
Digital Input (DI) Channel 4 (Optocoupler Isolation) Collect switch statuses, alarm signals, and the like.

 

Communication and Management Interface (primarily implemented on the ARM side)

Interface Type Quantity/Specification Function Description
Network interface 1x 10/100/1000M RJ45 Main communication interface, supporting IEC 61850 MMS, TCP/IP, and Modbus TCP.
Serial interface 2x RS-485 (isolated) Supports Modbus RTU for connecting local display units or third-party devices.
Maintenance interface 1x USB 2.0 OTG For on-site equipment commissioning, data export, and software upgrades.
Wireless extension Mini-PCIe slot Scalable 4G or Wi-Fi module for wireless data transmission.
Display interface LVDS or RGB interface It can be connected to a local touchscreen for real-time data display and operation.
Debugging interface JTAG For system-level debugging.

Software and Features

Operating system Runs a Linux-based custom operating system that is stable and efficient.
Core features:

  • Real-time monitoring: All electrical parameters (voltage, current, power, power factor, frequency, harmonics, etc.).
  • Event Logging: Waveform recording and alarm generation for events such as voltage swells/dips/interruptions, current surges, and frequency fluctuations.
  • Advanced Analysis: Harmonics (127th order), Interharmonics, Flicker (Pst, Plt), and Unbalance Analysis.
  • Data logging: Generate daily, weekly, and monthly reports on power quality, compliant with national standards.
  • Communication protocols: Supports IEC 61850, Modbus, IEC 104, DL/T645, and others.

Cloud platform integration: Supports access to private or public cloud platforms via protocols such as MQTT.

Typical application scenarios

  • Grid company: Monitoring and assessment of power quality at substations and key nodes in the distribution network.
  • New Energy Power Plants: Assessment of Power Quality and Verification of Governance Effects at Connection Points of Photovoltaic Power Plants and Wind Farms.
  • Large-scale industrial enterprises—such as steel, chemical, and automotive manufacturers—monitor power quality to ensure the reliable operation of sensitive equipment.
  • High-end commercial buildings: Power quality audits and fault prediction for data centers, hospitals, and airports.
  • Rail Transit: Power Quality Monitoring at Traction Substations.

Keywords:High-Precision Power Quality Monitoring Terminal