The GE SR750 is a microprocessor-based relay designed for feeder management. It belongs to the Multilin SR family and provides comprehensive protection, control, and monitoring for distribution feeders.

Key Features

• Comprehensive Protection: The SR750 offers protection elements such as overcurrent, overvoltage, undervoltage, differential current, and reclosing.
• Advanced Control: It includes control functions like load shedding, sectionalizing, and capacitor switching.
• Detailed Metering: The relay measures real and reactive power, energy, and demand.
• Communications: It supports DNP3, Modbus, and IEC 61850 communication protocols.
• Cybersecurity: The SR750 features role-based access control and data encryption for enhanced security.

Technical Specifications

• Voltage Rating: Supports up to 69 kV.
• Current Rating: Handles up to 5000 A.
• Protection Elements: Includes overcurrent, overvoltage, undervoltage, differential current, and reclosing protection.
• Control Functions: Provides load shedding, sectionalizing, and capacitor switching.
• Metering Capabilities: Measures real and reactive power, energy, and demand.
• Communications Protocols: Compatible with DNP3, Modbus, and IEC 61850.
• Cybersecurity Features: Includes role-based access control and data encryption.

Applications

• Distribution Feeders: Ideal for protecting, controlling, and monitoring various distribution feeders.
• Substations: Frequently used in substation automation applications.
• Industrial Plants: Protects and controls critical industrial feeders.
• Renewable Energy Installations: Integrates renewable energy sources into the grid efficiently.