MRI3-ITER Time overcurrent relay with Multi-Characteristic (MRI3I5TE1.D.)
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Configuration
The digital multifunctional relay MRI3-ITE(R) has been designed as a universal time-overcurrent protection relay with thermal replica for generators, transformers and cables.
The relay gives a complete thermal characteristic of the electrical equipment to be protected taking into account its initial load.
The MRI3-ITER furthermore provides a universal time-overcurrent and earth fault protection with the following functions:
Integrated determination of earth fault direction for application to power system networks with isolated or arc suppressing coil (Peterson coil) neutral earthing (ER-relay type),
independent (definite) time-overcurrent relay,
inverse time over current relay with selectable characteristics,
two-element (low and high set) earth fault protection with definite or inverse time characteristics.
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.
Protection of High, Medium and Low Voltage feeders against thermal damages by overload or short circuit currents.
Supervision of the Thermal Replica.