In modern electrical networks, protecting feeders, transformers, and connected equipment is essential for operational safety and reliability. The ABB REF615 is a state-of-the-art feeder protection relay designed to provide fast, precise, and reliable protection in industrial, utility, and commercial power systems.
The REF615 is part of ABB’s extensive series of numerical protection relays, engineered to monitor and safeguard medium-voltage power systems. It offers comprehensive protection for feeders and associated equipment, including overcurrent, earth fault, and voltage-based protection functions. Its advanced digital design ensures rapid fault detection and automatic isolation, helping prevent damage and minimize downtime.
The relay is widely used in substations, industrial plants, and distribution networks where safety, reliability, and efficiency are critical.
The REF615 provides a wide range of protection capabilities, including:
Phase and neutral overcurrent protection
Earth fault detection
Voltage and frequency monitoring
Directional protection
These features help ensure fast and accurate fault detection and system isolation.
Designed for harsh industrial environments, the REF615 offers:
High immunity to electrical noise and disturbances (EMI/RFI)
Operation under extreme temperatures and vibrations
Long-term reliability for continuous 24/7 operation
This industrial-grade durability ensures safe and uninterrupted power system performance.
The relay supports modern digital communication protocols, enabling:
Integration with SCADA and DCS systems
Remote monitoring and configuration
Event recording and diagnostics for predictive maintenance
These capabilities simplify system management and enhance operational efficiency.
ABB’s intuitive interface allows operators to:
Quickly configure protection settings
Access real-time measurements and logs
Perform diagnostics and troubleshooting with minimal effort
This reduces maintenance time and improves system reliability.
The REF615 is widely deployed in:
Industrial and commercial substations
Medium-voltage distribution networks
Power generation plants
Mining and manufacturing facilities
Renewable energy integration points
Its reliable performance and flexible configuration make it suitable for diverse electrical networks.
Electrical faults can cause severe equipment damage, downtime, and safety hazards. The ABB REF615 ensures rapid and precise fault detection, protecting assets and maintaining power system stability. Its advanced protection features, robust design, and integration capabilities make it an essential component for modern industrial and utility power systems.
The ABB REF615 feeder protection relay combines high-speed protection, robust construction, and seamless digital integration to deliver reliable performance in industrial and utility power networks. With its advanced protection functions and user-friendly design, it is a trusted solution for engineers seeking safety, reliability, and efficiency in medium-voltage systems.
