XMR-A

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)
The relay is compliant with CEI-016 requirements


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)

ACCURATE MEASUREMENT

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


FUNCTIONS


STANDARD PROTECTIVE & CONTROL ELEMENTS

  • 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
  • Calculated Residual Overcurrent - 50N/51N (Comp)
  • Low impedance restricted earth fault - 64REF
  • Automatic Recloser - 79
  • Breaker Failure - BF
  • CT Supervision - 74CT
  • Trip Circuit Supervision - 74TCS
  • Remote TRIP
  • 2nd h-REST
  • Multiple Profiles (A, B, C, D)

SW PACK OPTIONAL CONFIGURATION

  • Thermal Image Motor/Generator - 49MG
  • Locked Rotor - PMSS - F51Rn
  • Maximum number of startings (Restart inhibition) - 66
  • Negative sequence overcurrent Motor/Generator - 46M, 46G
  • Maximum Residual Overcurrent(2) - 50N/51N(2)

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
  • Residual Overvoltage - 59N
  • Ground directional overcurrent - 67N
  • Maximum Residual Overcurrent(2) - 50N/51N(2)
  • Arc flash

DOWNLOADS

XMR-A Coding
DNV XMR-P, XMR-A, XMR-D, XMR-T, XMR-V Server Ed2 Certificate
XMR-A Manual
XMR - Dimensions and Cutout
Additional modules XMore (XMRI - XMR16 - XMID32 - XMPT - XMCI)
Flyer XMR-A
X-MORE Brochure

RELATED PRODUCTS

XMR-P


XMR-P is a part of XMORE platform, the complete range of IEDs for Medium Voltage application including feeder, motor, generator, transformer and capacitor bank; it is the multifunction and comprehensive Feeder, Transformer, Motor and Generator protection which includes an accurate and complete measurement, including Energy and Power.

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

  • Feeder Protection (Standard SW configuration)
  • Feeder Protection with additional Power protection element (SW PAC Power)
  • Feeder Protection with additional Directional Overcurrent and Earth Fault element (SW PAC Directional) 
  • Generator and Motor Protection relay (SW PAC Motor)
The relay is compliant with CEI-016 requirements

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