The RED615 is a phase-segregated, two-end, line differential protection and control relay. It protects, controls, measures, and supervises overhead line and cable feeders in utility and industrial power distribution networks. This versatile device supports various network configurations, including radial, looped, and meshed networks, with or without distributed generation.

Key Features and Benefits

Comprehensive Protection

The RED615 provides reliable and selective protection for both overhead lines and cable feeders.

Flexible Configuration

It adapts to various network topologies and system requirements.

Advanced Communication

The relay supports fast fiber optic communication with substation LAN. It adheres to the IEC 61850 standard for seamless integration.

Enhanced Performance

The RED615 offers low burden relays for improved accuracy and self-checking facilities for increased reliability.

Adaptive Relaying Schemes

You can tailor the relay to specific application needs for optimal performance.

Technical Specifications

While specific technical specifications vary by model and configuration, here are common characteristics associated with the RED615:

Protection Functions

• Line differential protection
• Distance protection
• Overcurrent protection
• Earth fault protection
• Loss of supply protection
• Directional overcurrent protection

Measurement Functions

• Voltage and current measurement
• Power measurement
• Frequency measurement
• Harmonics measurement

Communication

• Fast fiber optic communication
• IEC 61850-based communication
• Modbus communication

Environmental

• Wide operating temperature range
• High immunity to electromagnetic interference

Applications

The RED615 suits a wide range of applications, including:

Utility Substations

Protect feeder lines and transformers.

Industrial Power Systems

Protect critical loads and distribution networks.

Renewable Energy Systems

Integrate distributed generation into the grid.