REF611 is a dedicated feeder IED (intelligent electronic device) designed for the protection, control, measurement and supervision of utility substations and industrial power systems including radial, looped and meshed distribution networks with or without distributed power generation. REF611 is available in two alternative standard configurations.
The 611 series is designed to offer simplified, but powerful functionality intended for most applications. Once the application-specific parameters have been entered, the installed IED 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.
REF611 is a member of ABB’s Relion® product family and its 611 series.