Overview
The ABB REB103 is a proven solution for high-voltage busbar protection in critical grid environments. Engineered for 500 kV transmission substations, it belongs to ABB’s RADSS (Redundant Analog Digital Substation System) family. This relay delivers ultra-fast differential protection using analog current comparison and digital tripping logic. Moreover, it supports multi-section busbar configurations, offering high reliability and operational flexibility. Its robust design and legacy performance make it ideal for demanding utility applications where downtime is not an option.
In addition to its protection capabilities, the REB103 integrates seamlessly into existing substation architectures. It supports high-impedance ratio-based differential protection, ensuring precise fault detection and isolation. Therefore, operators can maintain system stability and minimize equipment damage during fault conditions. ABB’s decades of experience in grid protection are reflected in the REB103’s dependable performance and intuitive configuration.
Technical Data
| Parameter | Specification |
|---|---|
| Protection Type | High-impedance busbar differential |
| Dimensions | 12.8 cm x 18.2 cm x 10.6 cm |
| Weight | 0.6 kg |
| Operating Temperature Range | -10°C to +55°C |
Typical Applications
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500 kV Transmission Substations: The REB103 is optimized for high-voltage busbar protection in large-scale substations.
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Multi-Section Busbar Systems: It supports complex busbar configurations with multiple sections and tie-breakers.
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Utility Grid Protection: Used by utilities to ensure fast fault isolation and maintain grid reliability.
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Industrial Power Systems: Suitable for industrial facilities requiring high-speed fault detection and system integrity.
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Legacy System Upgrades: Ideal for retrofitting older protection schemes with modern digital logic.
For instance, REB103 has been deployed in Scandinavian transmission networks to enhance fault response times and reduce outage risks. Additionally, its compatibility with fiber-optic communication modules ensures interference-resistant data exchange in harsh environments.
FAQ
Q: Is the ABB REB103 still supported by ABB?
A: While REB103 is a legacy product, ABB continues to offer support and spare parts for installed systems.
Q: Can REB103 be integrated with modern SCADA systems?
A: Yes, it supports SPA, LON®, and IEC 60870-5-103 protocols for SCADA integration.
Q: What makes REB103 suitable for high-voltage applications?
A: Its fast response time, analog current comparison, and high-impedance protection make it ideal for 500 kV systems.
Q: Is REB103 compatible with fiber-optic communication?
A: Yes, with the appropriate bus connection module, it supports fiber-optic networks.
Q: Can REB103 be used in industrial environments?
A: Absolutely. Its robust design and flexible configuration suit demanding industrial power systems.
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