XMR-T

Transformer protection

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

XMR-T the comprehensive solution for two or three windings transformer protection.




ACCURATE MEASUREMENTS

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

  • Up to 12 analogue inputs
  • 32 sample for cycle Oscillography fault recording
  • 64 sample for cycle measurement for accuracy of protection element
TIME SYNCRONIZATION

Enhanced Time synchronization solution for SOE recording:

  • Precision Time Protocol PTP according to IEC1588
  • SNTP
COMMUNICATION SECURITY

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
NETWORK CONNECTIVITY

Widely implemented in Smart Grid and Substation Automation System:

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



FUNCTIONS

Standard Protective & control elements
  • Over Flux(V/Hz) - 24
  • Under Voltage - 27
  • Under Current - 37
  • Negative sequence overcurrent transformer - 46LT
  • Negative /positive sequence current ratio - I2/I1
  • Thermal Image Transformer - 49LT
  • Phase overcurrent side H and side L - 50/51
  • Maximum Residual Overcurrent - 50N/51N
  • Overvoltage - 59
  • Residual Overvoltage - 59N
  • Negative sequence overvoltage - 59V2
  • Low impedance restricted earth fault - 64REF
  • Over frequency - 81O
  • Under frequency - 81U
  • Double slope biased differential for Generator/ Motor/Transformer - 87M-G-T
  • Breaker Failure - BF
  • CT Supervision - 74CT
  • VT Supervision - 74VT
  • Trip Circuit Supervision - 74TCS
  • Remote TRIP
  • 2ndh-REST
  • Multiple Profiles (A, B, C, D)
SW Pack optional configuration
  • Thermal with Pt100 Probes - 26

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

  • Thermal with Pt100 Probes - 26
  • Lock-out - 86



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