TABLE OF CONTENTS
2
NG10 - Manual - 04 - 2022
TABLE OF CONTENTSTABLE OF CONTENTS
1 INTRODUCTION 5
Scope and liability ...........................................................................................................................................................................................5
Applicability ......................................................................................................................................................................................................5
Conformity ........................................................................................................................................................................................................5
Technical support ............................................................................................................................................................................................5
Copyright ...........................................................................................................................................................................................................5
Warranty ...........................................................................................................................................................................................................5
Safety recommendations ...............................................................................................................................................................................5
Insulation tests ................................................................................................................................................................................................5
Product identification .....................................................................................................................................................................................6
Environment .....................................................................................................................................................................................................6
Graphical conventions ...................................................................................................................................................................................6
Glossary/definitions ........................................................................................................................................................................................6
2 GENERAL 10
Preface ........................................................................................................................................................................................................... 10
Photo .............................................................................................................................................................................................................. 10
Main features .................................................................................................................................................................................................11
3 TECHNICAL DATA 12
3.1 GENERAL ............................................................................................................................................................................................................12
Product standard for measuring relays .....................................................................................................................................................12
Mechanical data ...........................................................................................................................................................................................12
Insulation ........................................................................................................................................................................................................12
Voltage dip and interruption ........................................................................................................................................................................12
EMC tests for interference immunity .........................................................................................................................................................12
Emission ......................................................................................................................................................................................................... 13
Mechanical tests .......................................................................................................................................................................................... 13
Climatic tests ................................................................................................................................................................................................. 13
Safety ............................................................................................................................................................................................................. 13
Certifications ................................................................................................................................................................................................. 13
3.2 INPUT CIRCUITS ...............................................................................................................................................................................................14
Auxiliary power supply Uaux ......................................................................................................................................................................14
Phase current input circuits (side H and side L) ......................................................................................................................................14
Residual current input circuit ......................................................................................................................................................................14
Binary input circuits ......................................................................................................................................................................................14
Block input (Logic selectivity) .....................................................................................................................................................................14
3.3 OUTPUT CIRCUITS ............................................................................................................................................................................................14
Relays ..............................................................................................................................................................................................................14
Block output (Logic selectivity) ...................................................................................................................................................................15
3.4 MMI .....................................................................................................................................................................................................................15
3.5 COMMUNICATION INTERFACES ...................................................................................................................................................................15
Local port ........................................................................................................................................................................................................15
Remote ports ..................................................................................................................................................................................................15
3.6 GENERAL SETTINGS ........................................................................................................................................................................................16
Rated values (Base) ......................................................................................................................................................................................16
Input sequence .............................................................................................................................................................................................16
Polarity
[3]............................................................................................................................................................................................................................................................................16
3.7 PROTECTIVE FUNCTIONS ...............................................................................................................................................................................17
Thermal protection with Pt100 probes - 26 ...............................................................................................................................................17
Residual overcurrent or high impedance differential restricted ground fault - 50N/51N - 87NHIZ ................................................17
Low impedance restricted ground fault - 64REF side H......................................................................................................................... 18
Breaker failure - BF ...................................................................................................................................................................................... 18
3.8 CONTROL AND MONITORING ....................................................................................................................................................................... 19
Trip Circuit Supervision side H and side L - 74TCS ................................................................................................................................. 19
Selective block - BLOCK2 ........................................................................................................................................................................... 19
Circuit Breaker supervision ........................................................................................................................................................................ 19
CT supervision - 74CT side H ...................................................................................................................................................................... 19
CT supervision - 74CT side L ....................................................................................................................................................................... 19
Pilot wire diagnostic .................................................................................................................................................................................... 19
Demand measures ....................................................................................................................................................................................... 19
Oscillography (DFR) ..................................................................................................................................................................................... 20
PLC (Programmable Logic Controller) ...................................................................................................................................................... 20
3.9 METERING..........................................................................................................................................................................................................21
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