Thytronic NC020 - Page 3

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NC020 - Manual - 05 - 2022
Base protocol (kernel) ..................................................................................................................................................................................22
Calibration (kernel) ........................................................................................................................................................................................22
Communication (drivers) ..............................................................................................................................................................................22
MMI (drivers) .................................................................................................................................................................................................22
Data Base (application/drivers) ................................................................................................................................................................. 23
Self-test (application) .................................................................................................................................................................................. 23
Development tools ....................................................................................................................................................................................... 23
4.3 I/O DESCRIPTION ..............................................................................................................................................................................................24
Metering inputs .............................................................................................................................................................................................24
Signal processing ..........................................................................................................................................................................................24
Use of measured values ...............................................................................................................................................................................26
Binary inputs ..................................................................................................................................................................................................27
Output relays ................................................................................................................................................................................................. 28
LED indicators ............................................................................................................................................................................................... 29
Communication interfaces .......................................................................................................................................................................... 30
4.4 PROTECTIVE ELEMENTS .................................................................................................................................................................................31
Rated values ...................................................................................................................................................................................................31
Undercurrent - 37 ..........................................................................................................................................................................................32
TD Discharge time ........................................................................................................................................................................................ 33
Neutral unbalance current - 46N ................................................................................................................................................................34
Phase overcurrent - 50/51 RMS ..................................................................................................................................................................37
Fundamental phase overcurrent - 50/51................................................................................................................................................... 39
Residual overcurrent - 50N/51N .................................................................................................................................................................42
Peak 0vervoltage - 59H .................................................................................................................................................................................44
Breaker failure - BF ...................................................................................................................................................................................... 48
4.5 CONTROL AND MONITORING ....................................................................................................................................................................... 49
Circuit breaker supervision ........................................................................................................................................................................ 49
Test ................................................................................................................................................................................................................. 50
Oscillography ............................................................................................................................................................................................... 50
— 5 MEASURES, LOGIC STATES AND COUNTERS 51
Measures ........................................................................................................................................................................................................51
Circuit breaker ...............................................................................................................................................................................................51
Counters ..........................................................................................................................................................................................................51
Fault recording - SFR ....................................................................................................................................................................................51
Event recording - Events ..............................................................................................................................................................................52
Info ...................................................................................................................................................................................................................52
Protections trip ..............................................................................................................................................................................................52
Self-test ...........................................................................................................................................................................................................52
Oscillography - DFR ..................................................................................................................................................................................... 53
— 6 INSTALLATION 55
6.1 PACKAGING .......................................................................................................................................................................................................55
6.2 MOUNTING ........................................................................................................................................................................................................55
6.3 ELECTRICAL CONNECTIONS ..........................................................................................................................................................................57
6.4 NOMINAL CURRENT I
n
AND I
En
SETTING ................................................................................................................................................. 60
6.5 LED ALLOCATION ..............................................................................................................................................................................................62
6.6 FINAL OPERATIONS .........................................................................................................................................................................................62
— 7 PROGRAMMING AND SETTINGS 63
7.1 SW ThyVisor ..................................................................................................................................................................................................... 63
7.2 MMI (Man Machine Interface) ......................................................................................................................................................................64
Reading variables (READ) ............................................................................................................................................................................64
Setting modifying (SET) ................................................................................................................................................................................64
Test ...................................................................................................................................................................................................................65
Communication ..............................................................................................................................................................................................66
Reset ................................................................................................................................................................................................................66
DEFAULT (Option) ..........................................................................................................................................................................................66
Data/time setting (Time) ...............................................................................................................................................................................66
7.3 MENU TREE........................................................................................................................................................................................................67
7.4 MAINTENANCE ................................................................................................................................................................................................ 70
7.5 REPAIR ............................................................................................................................................................................................................... 70
7.6 PACKAGING ...................................................................................................................................................................................................... 70
— 8 APPENDIX 71
8.1 APPENDIX A1 - Inverse time IEC curves .....................................................................................................................................................71
Mathematical formula ..................................................................................................................................................................................71
Phase overcurrent 50/51 - Standard inverse time curve (IEC 60255-3/BS142 type A) ......................................................................72
Phase overcurrent 50/51 - Very inverse time curve (IEC 60255-3/BS142 type B) ............................................................................. 73
Phase overcurrent 50/51 - Extremely inverse time curve (IEC 60255-3/BS142 type C) .....................................................................74