XMR-P

XMR-P Motor and Feeder Protection Relay

XMR-P is part of the XMORE platform, a complete range of IEDs for medium voltage applications that includes feeders, motors, generators, transformers, and capacitor banks. Thanks to its hardware and software modularity, XMR-P is flexible and scalable in terms of applications and performance.

Features of the XMR-P Protection Relay

The XMR-P multifunction relay is used in power grids with any neutral state (isolated, earthed with high or low value resistance, earthed with Petersen coil (compensated neutral) and any resistance, directly connected to earth) for the following typical applications:

Protection of radial lines, transformers
As a CEI 0-16 certified General Protection System ( SPG), with measurement inputs from inductive CT-VT or from ThySensor
Disconnection of self-producers from the electrical distribution network (LoM - Loss of Main); in particular, the version with inputs from ThySensor, is CEI 0-16 certified as SPG (general protection system) and integrated SPI (interface protection system).

With optional SW package, it is also possible to extend its application to:

Loop lines or long radial lines, generators or transformers in parallel, thanks to directional phase (67) and ground (67N) protections
For directional monitoring of active and/or reactive power
As multifunctional motor or generator protection.

ACCURATE MEASUREMENTS

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

Up to 8 analogue inputs
Non conventional CT’s/VT’s inputs
32 sample for cycle Oscillography fault recording
64 sample for cycle measurement for accuracy of protection element
Up to 0,5 class Power and Energy measurement

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

CEI 0-16
Calculated Residual Overcurrent - 50N/51N (Comp)
Phase rotation direction check - 47
Positive Sequence Undervoltage - 27V1
Phase overcurrent side H and side L - 50/51
Overfrequency - 81O
Underfrequency - 81U
Residual Overvoltage - 59N
VT Supervision - 74VT
SynchroCheck - 25
Remote TRIP
Negative sequence overcurrent - 46LT
CT Supervision - 74CT
Under Voltage - 27
Under Current - 37
Frequency rate of change - 81R
Breaker Failure - BF
Negative sequence overvoltage - 59V2
Maximum Residual Overcurrent - 50N/51N(1)
Negative /positive sequence current ratio - I2/I1
Trip Circuit Supervision - 74TCS
Vector Jump - DPHI
Thermal Image Transformer - 49LT
Multiple Profiles (A, B, C, D)

SW PACK OPTIONAL CONFIGURATION

Under Impedence - 21
Overexicitation - 24
Directional active overpower - 32P
Directional reactive overpower -32Q
Directional reactive underpower - 37Q
Directional active underpower - 37P
Loss of Field - 40
Negative sequence overcurrent Motor/Generator - 46MG
Thermal Image Motor/Generator - 49MG
Locked Rotor - 51LR(48)/14
Maximum number of startings (Restart inhibition) - 66
Directional Phase Overcurrent - 67
Ground directional overcurrent - 67N

HW PACK OPTIONAL CONFIGURATION

Thermal with Pt100 Probes - 26
Arc flash
Rotor Earth Fault - 64F

DOWNLOADS

DNV XMR-P, XMR-A, XMR-D, XMR-T, XMR-V Server Ed2 Certificate

IEC 61850 XMR-P Goose Performance Ed2 Certificate

Brochure XMORE

XMR-P Coding Table

XMR - Dimensions and Cutout

Additional modules XMore (XMRI - XMR16 - XMID32 - XMPT - XMCI)

Flyer XMR-P

RELATED PRODUCTS

XMR-A

XMR-A is part of the XMORE platform, the comprehensive range of IEDs for medium voltage applications that includes protection for feeders, motors, generators, transformers, and capacitor banks. The Thytronic XMR-A IED complies with CEI-016 standards. Thanks to its hardware and software modularity, XMR-A is flexible and scalable in terms of applications and performance.

Features of the XMR-A Protection Relay

The XMR-A relay is used in power distribution grids with any state of the neutral (insulated, earthed with high or low resistance, earthed with Petersen coil (compensated neutral) and any resistance, directly connected to earth) for the following typical applications:

protecting radial lines, transformers
as a CEI 0-16 certified General Protection System (SPG) for active or passive users connected to the public distribution network, with possible directional earth protection 67N (with optional HW package).

The following measurement circuits are present:

Versions with inputs from CT
Three phase currents with rated current independently selectable at 1A or 5 A via software
One residual current input with rated current selectable at 1A or 5 A via software.

Optionally:

One additional residual current input with rated current selectable at 1A or 5 A via software.

A residual voltage input, with rated voltage programmable in the range 50...130V (UEn = 100V)

To integrate the protection functions, there are the functions of failure to open the circuit-breaker (BF), CT monitoring (74CT), VT monitoring (74VT), trip circuit monitoring (74TCS), synchronism control and programmable logic (PLC).

The methods of calibration, programming and reading of the measurements and recordings can be implemented through Personal Computer with Software support ( ThyVisor) or via bus RS485 or Ethernet communication; all the above operations are possible using the keyboard frontal view (MMI).

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