REB500 ABB Distributed Busbar Protection Relay

Description

TheABB REB500is ahigh-speed, selective, distributed busbar protection relaydesigned to provide comprehensive protection, control, and monitoring for busbar installations in medium, high, and extra-high voltage (MV, HV, and EHV) substations. As part of theABB Relion® product family, theREB500relay offersversatile and scalablesolutions, supporting configurations ranging from2 to 60 baysand up to32 busbar zones. It is built to handlecomplex and critical applications, ensuring optimal protection for power distribution systems. Scalability: Supports from 2 to 60 bays and up to 32 busbar zones Protection Algorithms: Low-impedance protection, stabilized differential current, and directional current comparison High Functional Reliability: Operates effectively even with heavy CT saturation during external faults Wide Temperature Range: -25°C to +70°C, suitable for harsh environments