1. Product Overview

2. Core Technical Specifications

3. Product Features

• All-Round Multi-Function Protection: This relay integrates overcurrent, overvoltage, ground fault, undervoltage and other critical protection functions, providing full-scope safety assurance for low-voltage feeders. It effectively identifies and responds to power faults in real time, preventing equipment damage and power outages to maintain grid stability.
• Highly Flexible Configuration: Equipped with advanced FlexLogic technology, it supports up to 20 customizable parameter settings. Users can flexibly adjust protection thresholds, action logic and operating modes to match the unique requirements of different feeder systems, realizing personalized and targeted feeder management.
• Precision Advanced Measurement: Boasts high-precision measurement capabilities for voltage, current, power, power factor and other key electrical parameters. The built-in 4-20mA analog output enables smooth data transmission, facilitating seamless integration with SCADA systems for centralized power monitoring and data analysis.
• Effortless System Integration: Compatible with a wide range of industrial communication protocols including Modbus, RS485 and Ethernet, ensuring effortless docking with DCS, PLC and other mainstream industrial control systems. It simplifies system networking and realizes intelligent remote control and management of power distribution equipment.
• Durable & Reliable Performance: Constructed with industrial-grade ABS plastic housing, the relay features a high protection rating, resisting dust, moisture and electromagnetic interference. It operates stably in harsh industrial environments, delivering long service life and minimal failure rates to reduce operational costs.

4. Structure & Components

• Power Supply Module: Delivers stable DC/AC power input to ensure uninterrupted operation of the relay, with built-in anti-surge and overvoltage protection to safeguard internal circuits from power fluctuations.
• Signal Acquisition Module: Connects with CT current transformers and PT voltage transformers to accurately collect real-time electrical parameters of the feeder, laying a solid foundation for precise protection and measurement.
• Processing Unit: Built-in high-performance microprocessor conducts fast data processing, logical judgment and fault analysis, executing protection actions and feedback signals efficiently to ensure timely fault response.
• Communication Interface Board: Acts as the data transmission hub, responsible for stable communication between the relay and external networks/control systems, enabling remote data upload and command reception.
• Relay Output Module: Controls the closing/opening of circuit breakers and the operation of other external auxiliary equipment, executing protection commands to isolate faults and restore power supply quickly.

5. Application Areas

• Industrial Enterprises: Monitoring and protection of power distribution systems in large factories, manufacturing plants and industrial parks, ensuring stable power supply for production equipment.
• Public Facilities: Power management and feeder protection in critical public venues including airports, hospitals, shopping malls, stadiums and commercial buildings, guaranteeing uninterrupted power for public services.
• Energy Industry: Low-voltage feeder protection and monitoring in power stations, substations and renewable energy power generation facilities, optimizing power distribution efficiency and grid safety.
• Power Distribution Networks: Operation monitoring and fault protection of urban and rural power distribution networks, industrial zone distribution systems and municipal power facilities, enhancing the reliability of regional power grids.