ABB REF630 Feeder Protection and Control Relay

Product Description

The ABB REF630 is a versatile feeder protection and control relay designed for medium-voltage power distribution networks. It integrates protection, measurement, control, and supervision in a single intelligent device, ensuring safe and reliable operation of both industrial and utility systems. Moreover, the REF630 supports a wide range of network configurations, including radial, looped, and meshed networks, making it suitable for systems with or without distributed generation. Its pre-configured templates and flexible engineering options allow fast deployment and customization for various feeder bay applications.

Key Functional Highlights

• Comprehensive Protection Functions: Phase, earth-fault, negative-sequence, overvoltage, undervoltage, and thermal overload protections.

• Advanced Control & Monitoring: Breaker control, interlocking, auto-reclose, and distance-to-fault fault location.

• Power Quality and Diagnostics: Harmonics monitoring, voltage dips/swells detection, event logs, and disturbance recording.

• Flexible Communication Interfaces: IEC 61850, Modbus, DNP3, SPA, LON with Ethernet, serial, and optical ports.

• User-Friendly HMI: Large, detachable local display with keypad for on-site configuration and diagnostics.

• Pre-Configured Templates: Designed for overhead lines, hybrid feeders, looped feeders, and segmented bus applications.

Technical Specifications

Protection Functions

• Phase overcurrent protection

• Earth-fault protection (directional and non-directional)

• Negative-sequence overcurrent protection

• Overvoltage / undervoltage protection

• Three-phase thermal overload

• Three-phase inrush current detection

• Phase discontinuity protection

• Transient/intermittent earth-fault protection

Control & Monitoring

• Breaker control, interlocking, auto-reclose

• Voltage, current, frequency, power, and energy measurement

• Fault location estimation (distance-to-fault)

• Event and alarm logs with time stamps

• Disturbance recorder for waveform capture

Communication & Interfaces

• Protocols: IEC 61850 (1st and 2nd edition), Modbus, DNP3, SPA, LON, IEC 60870-5-103

• Interfaces: Ethernet, serial ports, optical ports

• HMI: Detachable user interface with display and keypad

Hardware & Installation

• Mounting: Panel or flush

• Power supply: Multiple voltage options available

• Environmental rating: Suitable for harsh industrial conditions

• Input/output: 8 RTD/mA inputs, 4 mA outputs

Typical Applications

• Utility and industrial medium-voltage distribution systems

• Radial, looped, or meshed network configurations

• Feeder bay automation and control

• Systems with distributed generation integration

• Overhead line, cable feeder, and segmented bus applications

Support & Maintenance

ABB offers full lifecycle support for REF630, including engineering, installation guidance, software updates, and on-site technical service. Its modular design allows easy upgrade and expansion as system requirements evolve. Moreover, PCM600 engineering tool simplifies configuration and firmware management.

FAQ

Q: What networks can REF630 support?
A: REF630 is suitable for radial, looped, and meshed distribution networks with or without distributed generation.

Q: Which communication protocols does it support?
A: The relay supports IEC 61850, Modbus, DNP3, SPA, LON, and IEC 60870-5-103 protocols.

Q: Can REF630 detect faults and locate them?
A: Yes, it provides distance-to-fault estimation and captures event/disturbance records.

Q: Is the relay configurable for different feeder types?
A: Yes, pre-configured templates exist for overhead lines, hybrid feeders, looped feeders, and segmented bus applications.

Q: Does it support cybersecurity features?
A: Yes, REF630 includes role-based access and secure communication options.