Description

ABB REB500

1. Product Title

ABB REB500‑ Busbar Differential Protection Relay System

2. Product Overview

REB500 is a multifunctional numerical busbar protection system developed by ABB, designed for busbar fault protection in high‑voltage substations. It implements high‑speed differential protection, backup over‑current protection and fault‑recording functions for single‑zone or multi‑zone busbar configurations. It supports flexible zone configuration for complex substation layouts, and records disturbance data for post‑fault analysis. Multiple communication interfaces transmit metering, alarm and fault information to substation SCADA systems. Widely deployed in utility and large industrial power‑plant switchgear, it safeguards critical busbar equipment against short‑circuit damage.

3. Technical Specifications

• Brand: ABB
• Model: REB500
• Warranty: One Year
• Condition: 100% New & Original
• Core Function: Busbar differential protection, backup over‑current protection, disturbance recording
• Application: HV substation single‑zone / multi‑zone busbar protection
• Communication: Serial and Ethernet‑based substation communication protocols
• Auxiliary Supply: Wide‑range AC/DC auxiliary power
• Mounting: Panel‑mount installation
• Operating Temp:‑25 °C ~ +60 °C
• Protection Class: IP20
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4. Application Scenarios

• Utility High‑voltage Substation Protection Cabinet: Busbar‑protection‑relay spare for HV busbar safety assemblies.
• Power‑plant Main Switchgear Control Panel: Replacement differential protection system for critical busbar protection loops.
• ABB Substation Protection‑system Overhaul: Drop‑in spare for installed REB500 hardware.