NA10 - Manual - 04 - 2022
TABLE OF CONTENTSTABLE OF CONTENTS
1 INTRODUCTION 5
Scope and liability ...........................................................................................................................................................................................5
Applicability ......................................................................................................................................................................................................5
Conformity ........................................................................................................................................................................................................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
Technical data ................................................................................................................................................................................................12
Insulation ........................................................................................................................................................................................................12
EMC tests for interference immunity .........................................................................................................................................................12
Voltage dip and interruption ........................................................................................................................................................................12
EMC tests for interference immunity .........................................................................................................................................................12
Emission ......................................................................................................................................................................................................... 13
Mechanical tests .......................................................................................................................................................................................... 13
Climatic tests ................................................................................................................................................................................................. 13
Safety ............................................................................................................................................................................................................. 13
Certifications ..................................................................................................................................................................................................14
3.2 INPUT CIRCUITS ...............................................................................................................................................................................................14
Auxiliary power supply Uaux ......................................................................................................................................................................14
Phase current input circuits ........................................................................................................................................................................14
Residual current input circuit ......................................................................................................................................................................14
Residual voltage 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
3.7 PROTECTIVE FUNCTIONS ...............................................................................................................................................................................16
Base current - IB ...........................................................................................................................................................................................16
Thermal protection with Pt100 probes - 26 ...............................................................................................................................................16
Thermal image - 49 ........................................................................................................................................................................................16
Phase overcurrent - 50/51 ............................................................................................................................................................................16
Residual overcurrent - 50N/51N ................................................................................................................................................................ 18
Residual overvoltage - 59N ......................................................................................................................................................................... 19
Directional earth fault overcurrent - 67N ................................................................................................................................................. 19
Breaker failure - BF .......................................................................................................................................................................................22
3.8 CONTROL AND MONITORING ....................................................................................................................................................................... 23
Second harmonic restraint - 2ndh-REST .................................................................................................................................................. 23
Trip Circuit Supervision - 74TCS ................................................................................................................................................................. 23
Selective block - BLOCK2 ........................................................................................................................................................................... 23
Internal selective block - BLOCK4 ............................................................................................................................................................. 23
Circuit Breaker supervision ........................................................................................................................................................................ 23
CT supervision - 74CT .................................................................................................................................................................................. 23
Pilot wire diagnostic .................................................................................................................................................................................... 23
Demand measures ....................................................................................................................................................................................... 23
Oscillography (DFR)) .....................................................................................................................................................................................24
PLC (Programmable Logic Controller) .......................................................................................................................................................24
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