REB500 ABB Distributed Busbar Protection Relay
Description
REB500 ABB Distributed Busbar Protection Relay is a digital, modular protection device designed for high-speed, selective protection of medium, high, and extra-high voltage busbar systems. It supports multiple rated frequencies and can be configured to match a wide range of busbar layouts for reliable fault detection and system stability.
| Specification | Value |
|---|---|
| Rated Frequencies | 50 Hz, 60 Hz, 16.7 Hz |
| Maximum Feeder Capacity | Up to 60 feeders |
| Maximum Busbar Zones | Up to 32 busbar zones |
| Supported Busbar Configurations | Single busbar, transfer busbar, ring busbar, 1.5 breaker scheme, quad busbar |
Key Features:
- Modular hardware and software structure for flexible configuration based on primary system layout
- Low impedance busbar protection, plus stub and T-zone protection for comprehensive coverage
- Dual independent measurement standards including stable differential current algorithm and directional current comparison algorithm for high functional reliability
- Integrated tripping scheme reduces external logic and wiring requirements
- Phase-by-phase measurement for accurate fault detection
Applications:
- Medium, high, and extra-high voltage power system busbar protection
- Protection of diverse busbar configurations including ring, transfer, and 1.5 breaker scheme setups
- Fault detection in solidly grounded, resistively grounded, ungrounded, and Petersen coil-equipped power systems
Related Models:
- REB500 Version 8.2
- REB500 Version 8.3 ANSI
- REB500 Version 8.3 IEC