Distributed busbar protection IED - REB500

Description

REB500 belongs to the family of Relion protection and control products designed for the protection, control, measurement, and supervision of power systems. It ensures consistent performance, adapts to various needs, and ensures protection with robust security measures.

Reliable 

REB500 uses proven concepts and algorithms that have been proven and continuously used for over 15 years. The unique signal prolongation principle enables continuous measurement and ensures correct operation of the busbar protection, even when the current transformers are heavily saturated during external faults. This principle avoids blocking the protection function and leaving the busbar unsecured.

Secure

REB500 detects all bus and feeder faults for any type of system earthing, whether it is an isolated system or a solidly, low- impedance, or compensated earthed system. It operates selectively for all faults in the protected zone and maintains complete stability for faults outside the protected zone. The integrated overall check zone feature is completely independent of the isolator position indications. This feature enables REB500 to remain stable in case the busbar replica is not valid.

Flexible

REB500 uses state-of-the art technology and delivers enhanced protection and communication performance. As part of the proven Relion series, it enables differential protection performance below one power cycle. 

With this flexibility, REB500 can protect various busbar configurations under all circumstances. By integrating a versatile selection of protection functions, REB500 IEDs safeguard the complete bay and optimize switchyard protection, delivering adaptable, scalable functionality to changing needs throughout the entire life cycle of the installation.

Features

• Compliant with IEC 61850 standards: REB500 supports IEC 61850-8-1 Edition 1 or Edition 2 as per user configuration, including Parallel Redundancy Protocol (PRP) according to IEC 62439-3. GOOSE can be used to initiate the integrated breaker failure protection.

• Ensures cybersecurity: REB500 supports user access management, user activity logging, and centralized user account management. It also includes a cybersecurity feature in compliance with security standards, such as NERC CIP and IEC 62351-8

• Easy to operate: REB500 gathers vital process information and makes it accessible to the useryou via the local HMI at any of the REB500 IEDs in the protection system. Data can also be accessed by connecting a PC to the IED. Using You can use a protection and control IED manager –  PCM600, HMI500, or WebHMI –, it offers for an intuitive way to operate and maintain a REB500 installation. The HMI500 tool offers a comprehensive and easy-to-use graphical user interface for handling the REB500 distributed busbar protection IED REB500 throughout its life cycle. The tool allows you to configure and set parameters for the complete station protection system.