Transformative ECT Solutions: Seamless Plug-and-Play, Integrated Systems & Flexible Configuration

I. Technical Background and Challenges​​
Traditional electromagnetic current transformers (CTs) face bottlenecks such as large size, complex installation, poor linearity, and susceptibility to magnetic saturation. With the development of smart grids and digital substations, the demand for higher measurement accuracy, dynamic response, and data integration capabilities has increased. Electronic current transformers (ECTs), characterized by full digitalization, high bandwidth, and low power consumption, have become the ideal solution for next-generation power systems.

​II. Core Solution Highlights​
Based on principles of system integration, configuration flexibility, and Plug-and-Play design, this solution achieves the following breakthroughs:

1. ​Deep System Integration​
• ​Integrated Sensing & Processing:​​ Incorporates high-precision Rogowski coils/low-power TMR/AMR sensors, integrated signal conditioning, A/D conversion, and digital processing modules, completing current digitization directly at the device level.
• ​Direct Protocol Output:​​ Supports standardized protocols like IEC 61850-9-2LE/9-2, IEC 60044-8, and Modbus to output pure digital signals, enabling seamless integration with protection relays, measurement & control units, and local edge computing nodes.
• ​Reduced Intermediate Components:​​ Eliminates the need for secondary conversion cables and merging units required by traditional CTs, lowering system complexity and potential failure points.
2. ​Ultimate Configuration Flexibility​
• ​Modular Hardware Design:​​ Supports independent configuration and upgrades of sensors, processing units, and communication interfaces. Users can flexibly select specifications (e.g., measurement bandwidth options from 50Hz to 20kHz).
• ​Software-Defined Functionality:​​ Via a unified configuration platform (e.g., Web interface or dedicated tools), remotely adjust parameters such as sampling rate (1kS/s to 1MS/s), measurement range (5A to 100kA), and alarm thresholds to adapt to multiple scenarios like protection, metering, and harmonic analysis.
• ​Dynamic Adaptation to Topology Changes:​​ Only requires software configuration updates for system expansion or retrofitting, eliminating hardware replacement.
3. ​True Plug-and-Play Experience​
• ​Simplified Physical Installation:​​ Compact design (>60% size reduction) and standardized interfaces (e.g., M12 connectors) support rapid rail/bolt mounting, cutting on-site wiring time by 80%.
• ​Zero-Configuration Auto-Connection:​​ Upon power-up, devices automatically broadcast identity (including Device ID, Model, Protocol Version). Master systems (e.g., SCADA or IEDs) can auto-recognize and load predefined configuration templates.
• ​Commissioning-Free Operation:​​ Factory pre-calibration and temperature compensation algorithms ensure accuracy (Class 0.2 / 0.5) without on-site manual calibration; supports self-diagnostics (e.g., wire-break detection, drift alarms).

​III. Enabling On-Device Processing for Smart Advanced Applications​
ECTs are not merely data acquisition units, but also intelligent edge nodes:

• ​On-Device Computing:​​ Built-in ARM Cortex-M7 processor enables real-time harmonic analysis (THD/individual harmonics), transient waveform recording, and power quality assessment (P/Q/S calculations), reducing data processing load on master stations.
• ​Future-Ready Extensibility:​​ Pre-equipped with an AI accelerator interface to support deploying predictive models (e.g., motor bearing wear early warning based on current waveform recognition) or dynamic capacity expansion algorithms.

​IV. Standardized Interfaces Ensure Full Ecosystem Interoperability​

​V. Value Summary​