Overview

The ABB REF620 DIS0008 is part of the Relion® 620 series, offering advanced feeder management for radial, looped, and meshed networks. It supports both conventional instrument transformers and sensor-based configurations, enhancing flexibility across different system architectures. Moreover, the REF620 simplifies engineering and commissioning with pre-configured templates and scalable functionality. Its compact footprint and modular design allow easy integration into switchgear panels and digital substations. In addition, the relay supports IEC 61850 communication, enabling seamless interoperability with SCADA and automation platforms.

Technical Data / Specifications

Typical Applications 

The REF620 DIS0008 is widely used in medium-voltage substations and industrial distribution networks. It provides reliable protection and control for incoming and outgoing feeders, ensuring system stability and fault isolation. For instance, utilities deploy REF620 in ring main units and switchgear panels for feeder automation and fault management. In addition, it supports distributed generation scenarios, making it suitable for modern grid environments with renewable integration. Its IEC 61850 support enables real-time data exchange and remote diagnostics, reducing maintenance costs and improving uptime.

FAQ

Q: What types of networks is the REF620 suitable for?

A: It supports radial, looped, and meshed networks, with or without distributed generation.

Q: Can the REF620 be used with sensor-based systems?

A: Yes, it supports both conventional instrument transformers and sensor-based configurations.

Q: What communication protocols are available?

A: It supports IEC 61850, Modbus, and DNP3 for integration with SCADA and automation systems.

Q: What kind of protection does the relay offer?

A: It includes overcurrent, earth fault, breaker failure, and thermal overload protection.

Q: Is the REF620 easy to configure?

A: Yes, it offers pre-configured templates and scalable functionality to simplify setup and commissioning.