ABB Relion REX615

All-in-one protection for power generation and distribution applications, modular and scalable hardware and software

ABB Relion REX615

ABB Relion REX615 is an all-in-one protection and control relay for power generation and distribution applications in primary and secondary distribution. It represents the next step for ABB’s 615 and 620 series relays. The ABB Relion REX615 provides protection and control for a complete range of applications including feeder, line differential, transformer, machine protection, shunt capacitor, interconnection protection, automatic voltage regulation, voltage protection, busbar protection and arc protection. ABB Relion REX615 is designed fully compliant with the IEC/ANSI and CN standards and offer optimal cyber security, promoting secure connectivity and safeguard our customers’ network. 

ABB’s protection and control relays are available for original equipment manufacturers (OEM), panel builders and Engineering, Procurement and Construction (EPCs) partners to incorporate in their own installations or for use in repair, retrofit and upgrade projects. 

 

ABB Relion REX615 leverages the same configuration software as all ABB Relion protection and control products.  Relion REX615 offers fully modular and scalable hardware and software to ensure flexible adaptation to changing protection and communication requirements.  It also features integrated arc flash protection enabling detection of arc faults in the busbar, circuit breaker and cable compartments. Additionally, Relion REX615 has a unique earth-fault protection portfolio for optimal selectivity, sensitivity and reliability – irrespective of the type of network and fault. 

 

 

Product scope

REX615 - Feeder protection
- Bay control
- Transformer protection
- Line distance protection
- Line differential protection
- Motor protection
- Generator protection
- Busbar protection
- Capacitor bank protection
- Voltage protection
- Load-shedding
- Grid automation
- Petersen coil control
- Auto-synchronization
- Interconnection protection
- Arc flash protection

REX640 - Feeder protection
- Bay control
- Transformer protection
- Line distance protection
- Line differential protection
- Motor protection
- Generator protection
- Busbar protection
- Capacitor bank protection
- Voltage protection
- Load-shedding
- Grid automation
- Petersen coil control
- Auto-synchronization
- Interconnection protection
- Arc flash protection

Customer benefits

Compact Design & Installation

<ul> <li>It fits various medium voltage switchgear types&nbsp;</li> <li>It reduces panel space requirements&nbsp;</li> <li>It simplifies engineering and logistics&nbsp;</li> </ul>

Configuration & Commissioning

<ul> <li>Flexible hardware and software: ready-made application packages for convenient and smooth ordering and engineering&nbsp;</li> <li>User friendly&nbsp;PCM600&nbsp;tool&nbsp;</li> </ul>

Protection & Monitoring

<ul> <li>Wide application coverage with one freely configurable device for flexible and&nbsp;cost-effective tailoring to application-specific requirements&nbsp;</li> <li>Fully modular hardware and software: easy and flexible adaptation to changing protection and communication requirements&nbsp;</li> </ul>

Services for ABB Relion

  • Trainings - remotely or at our facilities in Finland 
  • Support - by local "agency" or by our manufacture for level 3 
  • Select the right relay 
  • Technical documentation

Related offering

Air-insulated switchgear

Offering a highly modular and flexible solution, Air-Insulated Switchgear (AIS) simplifies installation and maintenance while ensuring reliable protection and minimal service interruption across diverse industrial applications.

Gas-insulated switchgear

Achieve a significantly smaller footprint with Gas-Insulated Switchgear (GIS), where high voltage components are sealed in a metal gas tank, delivering very low maintenance requirements for challenging and space-constrained environments.

Centralized protection and control

With a centralized protection and control (SSC600) approach, all protection and control functionalities that several individual protection relays offer are centralized into one single device on the substation level for minimal engineering, station-wide visibility and optimal process management.

Frequently Asked Questions

Correct, there will be no more releases for neither the 615 series nor the 620 series. REX615 represents the next step for both series. 

There are 12 different application packages and two alternative add-on packages for machine protection. 

The name of the application package gives a good indication of its content. To support the selection of application package(s), a document listing all available functions per application package is accessible via ABB Relays-Online.

REX615 represents the next step for both Relion 615 and 620 series relays. REX615 is mechanically identical to the 615 and 620 series relays, the standard-sized relay to 615 and the wide one to 620. Hardware dimensions, modules, wiring connections and mounting kits are the same. 

Yes, ABB’s Relion protection and control relays feature a plug-in design that makes performing maintenance or replacement easy. It is also easy to change the relay as requirements change – just modifying it with a software application package. 

It is easy to modify ABB Relion’s medium-voltage protection and control relays. It’s simply a question of installing a new software application package to meet the specific need(s).