ABB PROTECTION AND CONTROL REX640 NUMERICAL RELAY

Protection and control REX640 All-in-one protection for advanced power generation and distribution applications

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.

Complete application coverage with one device for optimal cost-effectiveness REX640 is the outcome of a long-standing evolution, building on ABB?s strong heritage of freely configurable multifunctional relays. The ability to cover the full range of utility and industrial applications and manage multiple applications simultaneously, with the same device, guarantees flexible, versatile and cost-efficient protection solutions.

REX640 has been designed to support the increasing digitalization of substations. REX640 thereby supports a variety of digital switchgear solutions and is suitable for both single and double-busbar applications. REX640 offers as many as 20 current and voltage measurement channels in total, supporting both conventional instrument transformers and sensors, not to mention the ability to receive four streams of sampled measured values (SMV) via IEC 61850-9-2 LE-based process bus communication.

As the newest 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.

Protection and control REX640 makes protecting all your assets in advanced power generation and distribution applications easy. The fully modular design allows unequaled customization and modification flexibility, and easy adaptation to changing protection requirements throughout the relay life cycle.This is asset management at its best.

New application package concept for maximum convenience and flexibility REX640 introduces an entirely new application package concept, by offering a variety of ready-made application packages to choose from. The application packages include various protection and control functions, which can be flexibly combined to create protection solutions that meet your unique protection requirements.

The available packages support the following applications:

? Feeder protection

– Line differential protection

– Line distance protection

– Interconnection protection

– Fault locator

? Power transformer protection

– Two and three-winding differential protection

– On-load tap-changer control

? Machine protection

– Asynchronous machines

– Synchronous machines

? Shunt capacitor protection

? Busbar protection

? Automatic synchronization

– Generator circuit breaker

– Non-generator circuit breaker

? Petersen coil control

? Arc protection with supervised sensors

– Loop and lens-type sensors

Scope

All-in-one protection and control

Protection and control REX640 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
• Ready-made application-based LHMI pages saving both time and efforts
• Increased situational awareness and optimal usability with application-driven 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

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