1. Product Overview

2. Parameters and Technical Specifications

• System Compatibility: Boasts seamless integration capability with GE PLSC series relays, enabling the construction of a complete, coordinated power system protection solution to realize unified protection control and fault response for the power grid.
• Fault Analysis Performance: Delivers a high-precision fault analysis rate of 64 samples per cycle, supporting real-time recording of operation timestamps for internal components and complete generation of operation sequence logs, laying a solid data foundation for post-fault troubleshooting and system optimization.
• Modular Design: Adopts a scalable hardware framework, featuring flexible module replacement and upgrade functions to match diverse application demands. Typical configurable modules include H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I and other customized configurations, enhancing product adaptability and scalability.
• Input/Output Interface: Equipped with abundant digital and analog input/output ports, supporting remote real-time monitoring and intelligent control operations, facilitating remote management and automated regulation of the power protection system.

3. Product Features

• Efficient Fault Diagnosis: Built with an advanced fault recording system, capable of graphically displaying ground distance elements intuitively. This visual presentation helps operation and maintenance personnel quickly locate fault points, shorten fault handling time, and improve the efficiency of grid fault rectification.
• Flexible Programmability: Supports user-defined parameter settings and diversified protection logic configuration, with strong compatibility and adaptability to fit different grid architectures, voltage levels and operational requirements, meeting personalized protection needs of various scenarios.
• Outstanding Reliability: As a representative product of GE Multilin relay series, it inherits the brand’s consistent high-reliability design and manufacturing standards, with stable performance under complex working conditions, making it highly suitable for critical power grid infrastructure with high safety requirements.

4. Product Structure and Components

• Main Control Module: Acts as the core of the relay, responsible for executing high-speed data calculation, fault judgment and logic processing, ensuring accurate and rapid response to various line faults.
• Communication Module: Supports mainstream industrial communication protocols including IEC 61850 and DNP3, realizing smooth data interaction with SCADA systems, and integrating into the overall grid monitoring and control system seamlessly.
• Power Supply Module: Provides stable and reliable power support for the whole relay, with anti-power failure design, ensuring the relay can maintain normal operation and complete fault protection actions even when the main power supply is interrupted.
• Input/Output Module: Configured with targeted interfaces based on actual application needs, generally including analog input channels for collecting electrical parameters and digital output channels for executing control instructions, to meet diverse on-site connection demands.

5. Application Fields

• Power System Protection: Widely applied in line differential protection scenarios of power plants, substations and urban distribution networks, serving as a key protective barrier for the power transmission and distribution system.
• Industrial Automation: Deployed in large industrial parks, manufacturing plants and other large-scale industrial facilities, protecting key power transmission lines and ensuring stable power supply for industrial production equipment.
• Grid Monitoring and Management: Cooperates with GE PLSC series systems to build a full-grid monitoring and protection network, realizing unified scheduling, real-time monitoring and integrated protection of the entire power grid.

6. Installation and Maintenance

6.1 Installation Guidelines

• Environmental Requirements: The relay must be installed in a dry, well-ventilated special equipment room, avoiding direct sunlight, high temperature, humidity and dust accumulation environments to ensure stable operation of internal components.
• Standard Wiring: Strictly follow the professional electrical schematic diagram for wiring operations, verify the correctness of power lines, signal transmission lines and communication cables one by one, and avoid wrong connection or loose connection to prevent functional failure.
• Anti-Interference Installation: It is recommended to fix the relay on a specialized metal mounting bracket, which can effectively reduce electromagnetic interference from surrounding equipment and guarantee the signal transmission accuracy and operational stability of the relay.

6.2 Maintenance Specifications

• Regular Routine Inspection: Conduct a comprehensive annual routine maintenance, including thorough cleaning of heat dissipation components to ensure normal heat dissipation, and detailed inspection of wiring terminals to eliminate hidden dangers such as loose contacts and corrosion.
• Timely Firmware Upgrade: Use GE’s dedicated management software to regularly check for firmware update pushes, and complete firmware upgrades in a timely manner to ensure the relay is equipped with the latest protection algorithms and functional optimizations, improving protection performance.
• Fault Record Analysis: Make full use of the built-in fault log function, regularly export and analyze fault record data, grasp the real-time operation status of the system, identify potential operational risks in advance, and take targeted preventive measures to avoid unexpected faults.