ABB REB670 Busbar Protection Relay
Description
ABB REB670 Busbar Protection Relay is a digital intelligent electronic device (IED) designed for busbar protection in medium and high voltage power systems, part of ABB’s Relion 670 series with a proven track record of reliable operation.
| Specification | Value |
|---|---|
| Typical Internal Fault Response Time | 12 ms |
| CT Saturation Tolerance (External Faults) | Stable operation without false tripping even with severe CT saturation |
| Busbar Zone Auto-Switching Requirement | CT unsaturated for 2 ms within one power cycle |
| Configuration Options | 3 complete function configurations, including three-phase and phase-separated setups |
| Compatible Power System Frequency | 50 Hz or 60 Hz |
Key Features:
- Multiple protection functions including current differential protection, overcurrent protection, and ground fault protection
- Built-in automatic busbar protection zone selection, eliminating need for external CT switching and trip switching circuits
- Large human-machine interface (HMI) for viewing current magnitudes, phase angles, CT connection status, switchgear status, trip signals, and CT break indicators
- High reliability with premium materials and advanced manufacturing processes
- Intuitive operation interface with rich configuration options for easy parameter setup and fault troubleshooting
- Support for multiple communication protocols and interfaces for seamless integration with other automation equipment
Applications:
- Substation protection in power transmission and distribution systems
- Power distribution network protection
- Generator and power line protection
- Protection of direct-grounded, low-impedance grounded, and isolated/high-impedance grounded power systems
Related Models:
- ABB RET670
- ABB RET650
- ABB REB500
- ABB RED521