Generator protection REG615 ANSI

Compact and versatile solution for utility and industrial power distribution systems

REG615 is a dedicated generator protection relay for protection, control, measurement and supervision of power generators in utility and industrial power distribution systems.

REG615 is a member of ABB's Relion® family and part of its 615 protection and control product series.


  • Protection for synchronous generators in utility and industrial distribution systems.

Key benefits

  • Compact and versatile solution for utility and industrial power distribution systems with integration of protection, control, monitoring and supervision in one relay
  • Extensive range of protection functionality for synchronous generators
  • Ready-made standard configurations for fast and easy setup with tailoring capabilities
  • Withdrawable plug-in unit design for swift installation and testing
  • Large graphical display showing customizable SLDs, accessible either locally or through an easy-to-use web-browser-based HMI
  • Extensive life-cycle services
  • Ring type terminals for all connections

Key features

  • Extensive generator protection with 100 percent stator earth-fault, generator differential and out-of-step protection
  • Advanced interconnection protection fulfilling the latest grid codes for higher grid stability and reliability
  • Optional arc protection and high-speed outputs
  • Supports IEC 61850 Editions 1 and 2, including HSR and PRP, GOOSE messaging and IEC 61850-9-2 LE for less wiring and supervised communication
  • IEEE 1588 V2 for high-accuracy time synchronization and maximum benefit of substation-level Ethernet communication
  • Supports Modbus, and DNP3 communication protocols

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Technical documentation portal

The newest technical documentation In english for this product is on our technical documentation portal. On this portal, you can quickly search topics in all available technical documentation. You can also print topics of your choice to PDF format. As a registered user you will be able to bookmark and add your own comments in your own personal book. You can save the documents you need the most as collections and you can use them also in offline mode.

ABB Library

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