3
TABLE OF CONTENTS
— 1 INTRODUCTION 6
Scope and liability ...........................................................................................................................................................................................6
Conformity ........................................................................................................................................................................................................6
Service support ...............................................................................................................................................................................................6
Copyright ...........................................................................................................................................................................................................6
Warranty ...........................................................................................................................................................................................................6
Safety recommendations ...............................................................................................................................................................................6
Insulation tests ................................................................................................................................................................................................6
Product identification .................................................................................................................................................................................... 8
Environment .................................................................................................................................................................................................... 8
Graphical conventions .................................................................................................................................................................................. 8
Glossary/definitions ....................................................................................................................................................................................... 8
— 2 GENERAL 12
Preface ............................................................................................................................................................................................................12
Photo
...............................................................................................................................................................................................................12
Main features
................................................................................................................................................................................................ 13
Cyber Security ...............................................................................................................................................................................................14
— 3 TECHNICAL DATA 16
3.1 GENERAL ............................................................................................................................................................................................................16
Measuring relays and protection equipment ...........................................................................................................................................16
Mechanical data ...........................................................................................................................................................................................16
Insulation test ................................................................................................................................................................................................16
EMC tests for interference immunity) ........................................................................................................................................................16
Voltage dip and interruption ........................................................................................................................................................................16
EMC tests for interference immunity .........................................................................................................................................................16
Emission ..........................................................................................................................................................................................................17
Mechanical tests ........................................................................................................................................................................................... 17
Climatic tests .................................................................................................................................................................................................. 17
Safety ..............................................................................................................................................................................................................17
Certifications ..................................................................................................................................................................................................17
3.2 INPUT CIRCUITS .............................................................................................................................................................................................. 18
Auxiliary power supply Uaux ..................................................................................................................................................................... 18
Phase current inputs with inductive CTs .................................................................................................................................................. 18
Residual current input ................................................................................................................................................................................. 18
Residual voltage input ................................................................................................................................................................................. 18
Binary inputs ................................................................................................................................................................................................. 18
Block output (Logic selectivity) .................................................................................................................................................................. 19
3.4 MMI (Man Machine Interface) ..................................................................................................................................................................... 19
3.5 COMMUNICATION INTERFACES .................................................................................................................................................................. 19
Local port ....................................................................................................................................................................................................... 19
Network ports ............................................................................................................................................................................................... 19
Protocol .......................................................................................................................................................................................................... 19
3.6 RATED VALUES AND GENERAL SETTINGS ................................................................................................................................................. 19
Rated values (all versions) .......................................................................................................................................................................... 19
Binary inputs ................................................................................................................................................................................................. 20
Output relays ................................................................................................................................................................................................. 20
Input sequence ............................................................................................................................................................................................. 20
Polarity ........................................................................................................................................................................................................... 20
Starting control set ...................................................................................................................................................................................... 20
3.7 PROTECTIVE FUNCTIONS .............................................................................................................................................................................. 20
Overeflux- 24 ................................................................................................................................................................................................. 20
Thermometric probes - 26 ............................................................................................................................................................................21
Undervoltage - 27 ..........................................................................................................................................................................................21
Undercurrent - 37 (H, L, T) ............................................................................................................................................................................21
Negative sequence overcurrent for Line/Transformer protection- 46LT ............................................................................................ 21
Negative sequence / positive sequence current ratio - I
2
/I
1
(H, L, T)...................................................................................................22
Thermal image for Line/Transformer protection - 49 (H, L, T) ............................................................................................................... 23
Phase overcurrent - 50/51 side (H, L, T) .................................................................................................................................................... 23
Residual overcurrent - 50N/51N or High impedance restricted earth fault - 87NHIZ .......................................................................24
Overvoltage - 59 .............................................................................................................................................................................................26
Residual overvoltage - 59N ..........................................................................................................................................................................26
High impedance restricted earth fault - 64REF 1, 2 .................................................................................................................................27
Overfrequency - 81O .....................................................................................................................................................................................27
Underfrequency - 81U ..................................................................................................................................................................................27
Differential - 87G-87M-87T ......................................................................................................................................................................... 28
3.8 CONTROL AND MONITORING ....................................................................................................................................................................... 28
XMR-T EQUIPMENT MANUAL
Ed. 2.9 - 02/2021
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