REB103 ABB High-Speed Busbar Protection Relay

Description

TheABB REB103is a proven solution for high-voltage busbar protection in critical grid environments. Engineered for500 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, theREB103integrates seamlessly into existing substation architectures. It supportshigh-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 theREB103’s dependable performance and intuitive configuration.