Product Overview

The ABB REB500 is a high-speed, selective, distributed busbar protection relay designed 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 the ABB Relion® product family, the REB500 relay offers versatile and scalable solutions, supporting configurations ranging from 2 to 60 bays and up to 32 busbar zones. It is built to handle complex and critical applications, ensuring optimal protection for power distribution systems.

Key Features:

• 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

Technical Specifications

The REB500 relay is engineered with high reliability and precision to ensure accurate busbar protection in industrial power distribution systems.