MRIK3-ICER Time Overcurrent/Earth Fault Current Relay with Auto Reclosing and Control Function
The digital net protection relay MRIK3-ICER an universal time-overcurrent and earth fault relay with integrated control and supervision function as well as optional an integrated auto reclosing function.
The earth fault protection is applicable for insulated and compensated grids. It is either realised in Holmgreen connection or by means of a core-type current transformer.
The circuit breaker can be controlled by the means of the front plate via push button in the case of a local operation, the remote operation can be done via digital inputs or via the serial communication interface.
The MRIK3-ICER is available with rated currents of 1 A or 5 A.
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.
Auto reclosure option to fix short duration faults (like bird flying through overhead lines, ice on lines, lightning’s hitting overhead lines, wind caused arcing by on overhead lines.
|Inputs and Outputs|
|Current transformer inputs||4|
|Voltage transformer inputs||1|
|Time overcurrent protection||50/51||•|
|Earth fault protection||50N/51N||•|
|Earth fault directional feature||67N||•|
|Circuit breaker failure protection||50BF||•|
|Auto reclosing AR||79||•|
|Control and supervision of a circuit breaker||•|
|Fault recorder (none volatile)||•|
|Housing is withdrawable||•|
|Housing suitable for door mounting||•|
|Housing suitable for mounting plate||•|