Current protection relay REX640

voltagefor transformersIEC

REX640 is a powerful all-in-one protection and control relay for advanced power generation and distribution applications. REX640 offers unmatched flexibility throughout its entire life cycle – from ordering through testing and commissioning, to upgrading the functionality of its modular software and hardware to meet new application requirements. As a member of ABB’s Relion® protection and control family of relays, REX640 further reinforces Relion’s position as the range of relays to rely on. Scope • All-in-one protection and control • Benefits • Complete application coverage with one device for optimal flexibility and cost-effectiveness • Ready-made application packages for convenient and smooth ordering • Fully modular hardware and software for maximum flexibility throughout the entire relay life cycle • Easy adaption to changing protection requirements • Optimal situational awareness and usability with application-driven LHMI/SHMI (switchgear HMI) • Ready-made application-based LHMI pages – saving both time and efforts • Relay costs reduced by up to 15% with SHMI instead of LHMI • Features • Freely configurable relay for flexible tailoring to application-specific requirements • IEC 61850 Edition 1 and Edition 2 – certified by DNV/GL (KEMA) – with redundancy support based on HSR and PRP • Ability to receive four streams of sampled measured values (SMVs) and send one via IEC 61850-9-2 LE-based process bus communication • Synchronizer functionality for both generator and non-generator breakers • Four supervised arc sensor inputs, either loop or lens-type • Centralized account management with role-based access control