REU611 is designed for overvoltage and undervoltage protection, sequence protection, residual overvoltage and additional two-stage frequency protection of large-size power stations or small power units. The voltage protection relay is used for a wide variety of applications, including busbar, power transformer, motor and capacitor bank applications.
REU611 is a member of ABB's Relion® family and part of its 611 protection and control product series.
Scope
Product benefits
- Pre-configured functions for voltage protection application
- The relays are delivered preconfigured and factory-tested to shorten engineering and commissioning time
- Self-healing communication based on HSR/PRP using an optional second Ethernet bus
- The compact design makes it suitable for both new and retrofit installations
- Withdrawable plug-in unit design for swift installation and testing
Product features
- Pre-configured voltage-based protection unit for utility distribution and industrial applications
- Powerful and user-friendly web-browser-based human machine interface (HMI) including input/output (I/O) matrix with visual selections
- Application-specific standard configurations resulting in a shorter relay setup and commissioning time
- Supports IEC 61850 Editions 1 and 2, including binary GOOSE messaging
- Pre-configured solutions for utility distribution and industrial applications