MRF3 Frequency Relay (MRF31D)
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Configuration
The MRF3 is a universal frequency relay:
Four elements for over- or under frequency protection
Two elements for frequency gradient supervision df/dt
Fast decoupling of the generator from the grid at mains failure
Suitable for load shedding systems
19“ racks – fully withdrawable
Door mounting – withdrawable and sealable
Panel mounting – fully withdrawable
Fault / disturbance recorder
Intuitive HMI
Display (of primary values)
Easy setting software – Smart view
Compact form factor
Interconnection of renewable energies (DER – distributed energy resources) to the public grid.
Frequency based protection option, examples:
Over-/Underfrequency supervision
Load shedding by ROCOF