MRI3-ITE Time Overcurrent/Earth Fault Current Relay with Thermal Replica
The digital multifunctional relay MRI3-ITE has been designed as a universal time over current 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-ITE furthermore provides a universal time-overcurrent and earth fault protection with the following functions:
independent (Definite) time over current relay,
inverse time over current relay with selectable characteristics,
two-element (low and high set) earth fault protection with definite or inverse time characteristics.
Benefits and Key Features
19“ racks – fully withdrawable
Door mounting – withdrawable and sealable
Panel mounting – fully withdrawable
Fault / disturbance recorder
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.
|Inputs and Outputs|
|Current transformer inputs||4|
|Time overcurrent protection||50/51||•|
|Earth fault protection||50N/51N||•|
|Circuit breaker failure protection||50BF||•|
|Fault recorder (none volatile)||•|
|RS485 Open Data Protocol||(Option)|
|Housing is withdrawable||•|
|Housing suitable for 19” rack mounting||(Option)|
|Housing suitable for door mounting||(Option)|
|Housing suitable for mounting plate||•|