The ABB REF615 Feeder Protection and Monitoring Device is a compact, intelligent, and fully IEC 61850-compliant relay designed for the protection, control, measurement, and supervision of utility and industrial power distribution feeders. It belongs to ABB’s renowned Relion® 615 series, which provides advanced digital protection for medium-voltage networks.

REF615 is engineered to support modern smart grid environments and offers comprehensive protection functions including overcurrent, earth-fault, voltage, frequency, and breaker failure protection. The device also integrates monitoring and control capabilities, enabling operators to improve network reliability and reduce downtime. Its modular hardware and flexible configuration make it suitable for a wide range of feeder applications in both radial and ring networks.

Product Specifications

Product Applications

The ABB REF615 is widely used for feeder protection and control in various utility and industrial networks:

• Medium-Voltage Distribution Feeders: Comprehensive protection for radial and ring networks.

• Industrial Power Systems: Ensures operational reliability in manufacturing plants and processing facilities.

• Substation Automation: Integrated IEC 61850 support for seamless digital substation environments.

• Smart Grids: Advanced monitoring and communication for intelligent distribution networks.

• Renewable Energy Systems: Protection and control of feeders in wind, solar, and hybrid power plants.

• Breaker Control and Supervision: Provides reliable breaker interlocking, supervision, and failure protection.

Product Advantages

• Comprehensive Protection Suite: Covers all essential feeder protection functions including overcurrent, earth fault, and voltage.

• IEC 61850 Compliant: Fully supports digital substation integration with advanced GOOSE messaging.

• Flexible Communication Options: Offers multiple protocols for interoperability with various SCADA systems.

• Advanced Monitoring and Recording: Integrated disturbance recorder and event logs for efficient fault analysis.

• User-Friendly HMI: Large graphical display with intuitive navigation for easy setup and monitoring.

• Rugged Industrial Design: Withstands harsh environments with wide operating temperature range and robust construction.

FAQ

1. Which protection functions are included in the ABB REF615?

   It provides overcurrent, earth-fault, voltage, frequency, and breaker failure protection as standard.

2. Does the REF615 support IEC 61850 communication?

   Yes, the device is fully IEC 61850-compliant, supporting GOOSE messaging and substation automation integration.

3. Can the REF615 be used in both radial and ring feeder networks?

   Yes, it is designed to protect feeders in radial, ring, and meshed distribution network topologies.

4. What is the range of power supply voltage supported by the device?

   The REF615 operates with 24–250 V DC or 100–240 V AC auxiliary power supply.

5. Does the REF615 include event and disturbance recording?

   Yes, it can store over 1000 time-stamped events and includes a built-in disturbance recorder for fault analysis.

6. What communication protocols are supported besides IEC 61850?

   The REF615 supports Modbus, DNP3, IEC 60870-5-103, and Profibus for SCADA integration.

7. Is the device suitable for smart grid applications?

   Yes, its advanced communication, monitoring, and control capabilities make it ideal for smart distribution networks.

8. Can the REF615 perform breaker failure protection?

   Yes, it includes breaker failure detection and interlocking features to enhance network reliability.

9. Does the REF615 support measurement of power and energy?

   Yes, it can measure current, voltage, active/reactive power, frequency, and energy values.

10. What industries commonly use the ABB REF615?

    It is widely used in utilities, industrial plants, renewable energy systems, and automated substations.