ABB REU611 Voltage protection Numerical Relay

ABB VOLTAGE PROTECTION REU611 NUMERICAL RELAY REU611 A DEDICATED VOLTAGE PROTECTION RELAY, PRECONFIGURED FOR VOLTAGE- AND FREQUENCY-BASED PROTECTION IN UTILITY SUBSTATIONS AND INDUSTRIAL POWER SYSTEMS

REU611 is designed for overvoltage and under-voltage 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.

Scope

Voltage protection relay

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

The 611 series is part of ABB?s Relion? protection and control relay family and it offers simplified yet powerful
functionality for most applications. Once the application specific parameter set has been entered, the installed
protection relay is ready to be put into service. The further addition of communication functionality and interoperability between substation automation devices offered by the IEC 61850 standard adds flexibility and value to users as well as electrical system manufacturers.

The protection relays in the 611 series offer powerful functionality within basic protection and control configurations. There are product variants for feeder, motor, busbar and voltage protection applications.

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