Description
REB611 is a dedicated busbar protection relay for phase
segregated short-circuit protection, control, and supervision of
single busbars. REB611 is intended for use in high-impedance
based applications within utility substations and industrial
power systems. In addition, the protection relay can be utilized
in restricted earth-fault and residual earth-fault applications for
the protection of generators, motors, transformers and reactors.
The 611 series relays fully support the IEC 61850 standard for
communication and interoperability of substation automation
devices, including fast GOOSE (Generic Object Oriented
Substation Event) messaging, and can now also benefit from
the extended interoperability provided by Edition 2 of the
standard. The relays further support the parallel redundancy
protocol (PRP) and the high-availability seamless redundancy
(HSR) protocol. The 611 series relays are able to use IEC 61850
and Modbus® communication protocols simultaneously.
REB611 is a member of ABB’s Relion® product family and part
of the 611 protection and control product series. The 611 series
relays are characterized by their compactness and withdrawable-unit design.
The 611 series 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 end users as well as electrical system manufacturers.
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