Feeder protection, Motor protection

XMR-A is a part of XMORE platform, the complete range of IEDs for Medium Voltage application including feeder, motor, generator, transformer and capacitor bank.

Thanks to Hardware and Software modularity XMR-A is flexible and scalable in term of application and performance as:

  • Overcurrent and Earth fault protection (StandardSW configuration)
  • Additional double Earth Fault input for two-side Transformer protection (SW PAC Xtra Current)
  • Additional Earth Fault Directional Overcurrent(SW PAC Xtra Voltage)
  • Small sized Motor Protection (SW PAC Motor)


Enhancements to protect and analyze power system operation in disturbance conditions:

  • Up to 5 analogue inputs
  • 32 sample for cycle Oscillography fault recording
  • 64 sample for cycle measurement for accuracy of protection element

Enhanced Time synchronization solution for SOE recording:

  • Precision Time Protocol PTP according to IEC1588
  • SNTP

Communication Security through redundancy protocol and Cyber Security package :

  • High available Seamless Redundancy support HSR
  • Parallel Redundancy Protocol support PRP
  • Rapid Spanning Tree Protocol RSTP
  • Advanced built in Cyber Security

Widely implemented in Smart Grid and Substation Automation System:

  • IEC61850 Ed.1/Ed.2
  • IEC 870-5-103
  • Modbus (Serial/TCP)
  • DNP3 (Serial/TCP)


Standard Protective & control elements
  • Under Current
  • Negative sequence overcurrent transformer
  • Negative /positive sequence current ratio
  • Thermal Image Transformer
  • Phase overcurrent side H and side L
  • Maximum Residual Overcurrent
  • Calculated Residual Overcurrent
  • Low impedance restricted earth fault
  • Automatic Recloser
  • Breaker Failure
  • CT Supervision
  • Trip Circuit Supervision
  • Remote TRIP
  • 2ndh-REST
  • Multiple Profiles (A, B, C, D)
SW Pack optional configuration
  • Thermal Image Motor/Generator
  • Maximum Residual Overcurrent(2)
  • Locked Rotor
  • Maximum number of startings (Restart inhibition)
  • Negative sequence overcurrent Motor/Generator

XMR relay needs special hardware modules. The following functions can be enabled only with the presence of the relative module:

  • Thermal with Pt100 Probes
  • Lock-out
  • Arc flash
  • Maximum Residual Overcurrent(2)
  • Residual Overvoltage
  • Ground directional overcurrent




XMR-P is a part of XMORE platform, the complete range of IEDs for Medium Voltage application includ ...