Thytronic Pro-N NVA100X-D User manual

NVA100X-D - Manual - 02 - 2016
MANUAL
NVA100X-D
THE COMPREHENSIVE SOLUTION FOR DIFFERENTIAL PROTECTION
OF GENERATORS/MOTORS/TRANSFORMERS

2NVA100X-D - Manual - 02 - 2016
TABLE OF CONTENTS
1 INTRODUCTION 6
Scope and liability...........................................................................................................................................................................................6
Applicability......................................................................................................................................................................................................6
Conformity ........................................................................................................................................................................................................6
Service support ...............................................................................................................................................................................................6
Copyright...........................................................................................................................................................................................................6
Warranty...........................................................................................................................................................................................................6
Safety recommendations...............................................................................................................................................................................6
Insulation tests ................................................................................................................................................................................................6
Product identification.....................................................................................................................................................................................7
Environment .....................................................................................................................................................................................................7
Graphical conventions ...................................................................................................................................................................................7
Glossary/definitions ........................................................................................................................................................................................7
2 GENERAL 11
Preface............................................................................................................................................................................................................11
Photo ...............................................................................................................................................................................................................11
Main features.................................................................................................................................................................................................12
3 TECHNICAL DATA 13
3.1 GENERAL........................................................................................................................................................................................................... 13
Measuring relays and protection equipment.......................................................................................................................................... 13
Mechanical data .......................................................................................................................................................................................... 13
Insulation test ............................................................................................................................................................................................... 13
Voltage dip and interruption....................................................................................................................................................................... 13
EMC tests for interference immunity........................................................................................................................................................ 13
Emission..........................................................................................................................................................................................................14
Mechanical tests...........................................................................................................................................................................................14
Climatic tests..................................................................................................................................................................................................14
Safety ..............................................................................................................................................................................................................14
Certifications.................................................................................................................................................................................................14
3.2 INPUT CIRCUITS ...............................................................................................................................................................................................15
Auxiliary power supply Uaux ......................................................................................................................................................................15
Phase current inputs - side H and side L ..................................................................................................................................................15
Residual current inputs - side 1 and side 2...............................................................................................................................................15
Phase voltage inputs ....................................................................................................................................................................................15
Residual voltage input..................................................................................................................................................................................15
Binary inputs..................................................................................................................................................................................................15
Block input (Logic selectivity).....................................................................................................................................................................15
3.3 OUTPUT CIRCUITS............................................................................................................................................................................................16
Relays..............................................................................................................................................................................................................16
Block output (Logic selectivity)...................................................................................................................................................................16
3.4 MMI (Man Machine Interface) ......................................................................................................................................................................16
3.5 COMMUNICATION INTERFACES ...................................................................................................................................................................16
Local port........................................................................................................................................................................................................16
Remote ports..................................................................................................................................................................................................16
3.6 RATED VALUES AND GENERAL SETTINGS..................................................................................................................................................17
Rated values...................................................................................................................................................................................................17
Transformer data (87T element)..................................................................................................................................................................17
Binary inputs..................................................................................................................................................................................................17
Output relays................................................................................................................................................................................................. 18
Input sequence............................................................................................................................................................................................. 18
Polarity........................................................................................................................................................................................................... 18
Starting control set ...................................................................................................................................................................................... 18
3.7 PROTECTIVE FUNCTIONS .............................................................................................................................................................................. 18
Base current - IB.......................................................................................................................................................................................... 18
Underimpedance - 21 .................................................................................................................................................................................. 18
Thermometric probes - 26........................................................................................................................................................................... 19
Undervoltage - 27......................................................................................................................................................................................... 19
Positive sequence undervoltage - 27V1................................................................................................................................................... 19
Directional active overpower 32P............................................................................................................................................................. 19
Undercurrent - 37......................................................................................................................................................................................... 20
Directional active underpower 37P........................................................................................................................................................... 20
Loss of field - 40........................................................................................................................................................................................... 20
Negative sequence overcurrent for Generator protection - 46G .........................................................................................................21
Negative sequence overcurrent for Motor protection - 46M ...............................................................................................................21
Phase rotation direction check - 47..........................................................................................................................................................22
Thermal image for Motor/generator protection - 49MG.........................................................................................................................22
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NVA100X-D - Manual - 02 - 2016
Phase overcurrent - 50/51 side H .............................................................................................................................................................. 23
Phase overcurrent - 50/51 side L................................................................................................................................................................24
Locked rotor - 51LR(48)/14 ...........................................................................................................................................................................25
Voltage-controlled / restraint overcurrent - 51V......................................................................................................................................26
Residual overcurrent - 50N.1/51N .1 or High impedance restricted earth fault - 87NHIZ.1 - side 1 ...............................................26
Residual overcurrent - 50N.2/51N .2 or High impedance restricted earth fault - 87NHIZ.2 - side 2 .............................................. 28
Calculated residual overcurrent - 50N(Comp)/51N(Comp).................................................................................................................... 29
Minimum power factor - 55 ........................................................................................................................................................................ 30
Overvoltage - 59............................................................................................................................................................................................ 30
Residual overvoltage - 59N..........................................................................................................................................................................31
Negative sequence overvoltage - 59V2.....................................................................................................................................................31
High impedance restricted earth fault - 64REF ........................................................................................................................................32
Maximum number of startings (Restart inhibition) - 66...........................................................................................................................32
Directional earth fault overcurrent- 67N...................................................................................................................................................32
Directional earth fault overcurrent with calculated residual current- 67N(Comp)............................................................................34
Overfrequency - 81O.....................................................................................................................................................................................36
Underfrequency - 81U ..................................................................................................................................................................................37
Differential - 87G-87M-87T...........................................................................................................................................................................37
Breaker failure - BF.......................................................................................................................................................................................37
3.8 CONTROL AND MONITORING....................................................................................................................................................................... 38
Second harmonic restraint - 2ndh-REST.................................................................................................................................................. 38
Trip Circuit Supervision - 74TCS................................................................................................................................................................. 38
Selective block - BLOCK2 ........................................................................................................................................................................... 38
Internal selective block - BLOCK4............................................................................................................................................................. 38
Circuit Breaker supervision........................................................................................................................................................................ 38
VT supervision - 74VT .................................................................................................................................................................................. 38
CT supervision - 74CT side H...................................................................................................................................................................... 38
CT supervision - 74CT side L....................................................................................................................................................................... 39
Pilot wire diagnostic.................................................................................................................................................................................... 39
Demand measures ....................................................................................................................................................................................... 39
Oscillography (DFR) ..................................................................................................................................................................................... 39
3.9 METERING......................................................................................................................................................................................................... 40
Accuracy (type test)..................................................................................................................................................................................... 40
Measures....................................................................................................................................................................................................... 40
4 FUNCTION CHARACTERISTICS 42
4.1 HARDWARE .......................................................................................................................................................................................................42
Power supply board......................................................................................................................................................................................42
CPU module....................................................................................................................................................................................................42
Input board .................................................................................................................................................................................................... 43
MMI (keyboard, LED and display) ............................................................................................................................................................. 43
4.2 FIRMWARE.........................................................................................................................................................................................................44
Base software................................................................................................................................................................................................44
Real-time operating system.........................................................................................................................................................................44
Task..................................................................................................................................................................................................................44
Drivers.............................................................................................................................................................................................................45
Application Software....................................................................................................................................................................................45
Data Base.......................................................................................................................................................................................................45
Self test (Application) ...................................................................................................................................................................................45
Development tool (Builder)..........................................................................................................................................................................45
4.3 I/0.........................................................................................................................................................................................................................46
Metering inputs .............................................................................................................................................................................................46
Signal processing..........................................................................................................................................................................................46
Conventions....................................................................................................................................................................................................52
Polarity reversing ......................................................................................................................................................................................... 53
Use of measured signals..............................................................................................................................................................................56
Binary inputs..................................................................................................................................................................................................57
Output relays..................................................................................................................................................................................................64
LED indicators................................................................................................................................................................................................67
Communication interfaces.......................................................................................................................................................................... 70
4.4 PROTECTIVE ELEMENTS .................................................................................................................................................................................71
Rated values...................................................................................................................................................................................................71
Transformer menu .........................................................................................................................................................................................76
Underimpedance - 21 ...................................................................................................................................................................................77
Thermal protection with RTD thermometric probes - 26 ....................................................................................................................... 83
Undervoltage - 27..........................................................................................................................................................................................85
Positive sequence undervoltage - 27V1................................................................................................................................................... 89
Directional active overpower - 32P............................................................................................................................................................91
Undercurrent - 37..........................................................................................................................................................................................94
Directional active underpower - 37P.........................................................................................................................................................96
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4NVA100X-D - Manual - 02 - 2016
Loss of field - 40............................................................................................................................................................................................ 99
Negative sequence overcurrent for Generator protection - 46G........................................................................................................105
Negative sequence overcurrent for motor protection - 46M ............................................................................................................. 110
Phase rotation direction check - 47.........................................................................................................................................................117
Thermal image - 49MG for motor or generator protection.................................................................................................................. 118
Phase overcurrent - 50/51 side H and side L......................................................................................................................................... 129
Locked rotor- 50S/51LR(48)/14.................................................................................................................................................................. 139
Voltage controlled/restraint overcurrent - 51V ......................................................................................................................................145
Residual overcurrent - 50N.1/51N.1, 50N.2/51N.2 or high impedance restricted earth fault - 87NHIZ.1, 87NHIZ.2 side 1,2....152
Residual overcurrent - 50N(Comp)/51N(Comp) side H or side L ........................................................................................................ 163
Minimum power factor - 55 ..................................................................................................................................................................... 173
Overvoltage - 59...........................................................................................................................................................................................177
Residual overvoltage - 59N........................................................................................................................................................................181
Negative sequence overvoltage - 59V2...................................................................................................................................................185
Low impedance restricted ground fault- 64REF.....................................................................................................................................187
Ground directional overcurrent - 67N......................................................................................................................................................192
Ground directional overcurrent with calculated residual current - 67N(Comp) ..............................................................................215
Overfrequency - 81O...................................................................................................................................................................................227
Underfrequency - 81U ............................................................................................................................................................................... 229
Breaker failure - BF.....................................................................................................................................................................................246
Logical block - BLOCK1............................................................................................................................................................................. 248
Selective block -BLOCK2 .......................................................................................................................................................................... 250
Internal selective block -BLOCK4.............................................................................................................................................................255
Logical block summary.............................................................................................................................................................................. 258
Remote tripping .......................................................................................................................................................................................... 260
Frequency tracking.....................................................................................................................................................................................261
Second Harmonic Restraint - 2ndh-REST...............................................................................................................................................262
Cold Load Pickup - CLP ............................................................................................................................................................................. 263
Cold Load Pickup - CLP for motor-generator protection ......................................................................................................................264
Summary of elements where second harmonic restraint and Cold Load Pickup functions may be enabled.............................266
CT supervision - 74CT.................................................................................................................................................................................267
VT supervision - 74VT ................................................................................................................................................................................ 268
Trip circuit supervision - 74TCS................................................................................................................................................................ 270
Circuit breaker supervision ...................................................................................................................................................................... 273
Virtual I/O......................................................................................................................................................................................................275
Demand measures ..................................................................................................................................................................................... 279
Oscillography ............................................................................................................................................................................................. 279
5 MEASURES, LOGIC STATES AND COUNTERS 280
Measures..................................................................................................................................................................................................... 280
Protection states.........................................................................................................................................................................................282
Delayed inputs.............................................................................................................................................................................................282
Internal states..............................................................................................................................................................................................282
Relays........................................................................................................................................................................................................... 283
Counters....................................................................................................................................................................................................... 283
Self test ........................................................................................................................................................................................................ 283
Pilot wire diagnostic...................................................................................................................................................................................284
Selective Block - BLOCK2..........................................................................................................................................................................284
Fault recording - SFR..................................................................................................................................................................................284
Event recording - SER.................................................................................................................................................................................285
Oscillography - DFR ....................................................................................................................................................................................285
6 INSTALLATION 288
6.1 PACKAGING.................................................................................................................................................................................................... 288
6.2 MOUNTING..................................................................................................................................................................................................... 288
6.3 ELECTRICAL CONNECTIONS ........................................................................................................................................................................291
6.4 RATED In AND Ien SETTINGS ..................................................................................................................................................................... 299
6.5 LED COMMISSIONING ................................................................................................................................................................................. 299
6.6 FINAL OPERATIONS ...................................................................................................................................................................................... 299
7 PROGRAMMING AND SETTINGS 300
7.1 SW ThySetter.................................................................................................................................................................................................. 300
ThySetter use .............................................................................................................................................................................................. 300
7.2 MMI (Man Machine Interface) ....................................................................................................................................................................301
Reading variables (READ)..........................................................................................................................................................................301
Setting modifying (SET) ..............................................................................................................................................................................302
TEST.............................................................................................................................................................................................................. 303
COMMUNICATION..................................................................................................................................................................................... 303
Circuit breaker commands ....................................................................................................................................................................... 303
Enable / block changes via keyboard - Password.................................................................................................................................304
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NVA100X-D - Manual - 02 - 2016
7.3 MENU TREE......................................................................................................................................................................................................306
7.4 MAINTENANCE...............................................................................................................................................................................................321
7.5 REPAIR..............................................................................................................................................................................................................321
7.6 PACKAGING.....................................................................................................................................................................................................321
8 APPENDIX 322
8.1 APPENDIX A1 - Inverse time curves ...........................................................................................................................................................322
8.2 APPENDIX A1 - Inverse time IEC curves .................................................................................................................................................. 323
Mathematical formula ............................................................................................................................................................................... 323
46M - First element - Standard inverse time curve (type A) ................................................................................................................324
46M - First element - Very inverse time curve (IEC 60255-3/BS142 type B).......................................................................................325
46M - First element - Extremely inverse time curve (IEC 60255-3/BS142 type C) ............................................................................326
Phase overcurrent 50/51 side H and side L - Standard inverse time curve (IEC 60255-3/BS142 type A) ....................................327
Phase overcurrent 50/51 side H and side L - Very inverse time curve (IEC 60255-3/BS142 type B)............................................ 328
Phase overcurrent 50/51 side H and side L - Long Time Inverse curve (IEC 60255-3/BS142 type B) .......................................... 329
Phase overcurrent 50/51 side H and side L - Extremely inverse time curve (IEC 60255-3/BS142 type C) .................................. 330
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 and 50N(Comp)/51N(Comp) - Standard inverse time curve
(IEC 60255-3/BS142 type A) ..................................................................................................................................................................331
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 and 50N(Comp)/51N(Comp) -Very inverse time curve
(IEC 60255-3/BS142 type B) ..................................................................................................................................................................332
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 and 50N(Comp)/51N(Comp) - Long Time Inverse curve
(IEC 60255-3/BS142 type B) ................................................................................................................................................................. 333
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 and 50N(Comp)/51N(Comp) - Extremely inverse time curve
(IEC 60255-3/BS142 type C) ..................................................................................................................................................................334
Ground directional overcurrent - 67N - Standard inverse time curve (IEC 60255-3/BS142 type A) ............................................335
Ground directional overcurrent - 67N - Very inverse time curve (IEC 60255-3/BS142 type B)......................................................336
Ground directional overcurrent - 67N - Extremely inverse time curve (IEC 60255-3/BS142 type C) ............................................337
Ground directional overcurrent 67N(Comp) - Standard inverse time curve (IEC 60255-3/BS142 type A).................................. 338
Ground directional overcurrent 67N(Comp) - Very inverse time curve (IEC 60255-3/BS142 type B) .......................................... 339
Ground directional overcurrent 67N(Comp) - Extremely inverse time curve (IEC 60255-3/BS142 type C)................................. 340
8.3 APPENDIX A3 - Inverse time ANSI/IEEE curves .......................................................................................................................................341
Mathematical formula................................................................................................................................................................................341
Negative sequence overcurrent 46M - Moderately inverse time curve (ANSI/IEEE type MI) .....................................................342
Negative sequence overcurrent 46M - Very inverse time curve (ANSI/IEEE type VI).................................................................. 343
Negative sequence overcurrent 46M - Extremely inverse time curve (ANSI/IEEE type EI)..........................................................344
Phase overcurrent 50/51 side H and side L - Moderately inverse time curve (ANSI/IEEE type MI)............................................345
Phase overcurrent 50/51 side H and side L - Very inverse time curve (ANSI/IEEE type VI)..........................................................346
Phase overcurrent 50/51 side H and side L - Extremely inverse time curve (ANSI/IEEE type EI).................................................347
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 e 50N(Comp)/51N(Comp) - Moderately inverse time curve
(ANSI/IEEE type MI) ............................................................................................................................................................................. 348
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 and 50N(Comp)/51N(Comp) - Very inverse time curve (ANSI/IEEE type VI) 349
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 and 50N(Comp)/51N(Comp) - Extremely inverse time curve (EI) .................. 350
Directional ground overcurrent 67N - Moderately inverse time curve (ANSI/IEEE type MI) .......................................................351
Directional ground overcurrent 67N - Very inverse time curve (ANSI/IEEE type VI) .....................................................................352
Directional ground overcurrent 67N - Extremely inverse time curve (ANSI/IEEE type EI)........................................................... 353
Directional ground overcurrent 67N(Comp) - Moderately inverse time curve (ANSI/IEEE type MI)...........................................354
Directional ground overcurrent 67N(Comp) - Very inverse time curve (ANSI/IEEE type VI).........................................................355
Directional ground overcurrent 67N(Comp) - Extremely inverse time curve (ANSI/IEEE type EI) ...............................................356
8.4 APPENDIX A3 - Inverse time - RECTIFIER, I2t and EM curves...............................................................................................................357
Mathematical formula................................................................................................................................................................................357
Phase overcurrent 50/51 side H and side L - Rectifier curves............................................................................................................ 358
Negative sequence overcurrent 46M - I2t inverse curves (I2t=K).................................................................................................... 359
Phase overcurrent 50/51 side H and side L - I2t inverse curves (I2t=K)............................................................................................ 360
Phase overcurrent 50/51 side H and side L - I2t inverse curves (I2t=K)............................................................................................361
Negative sequence overcurrent 46M - Electromechanical inverse curves (EM)............................................................................362
Phase overcurrent 50/51 side H and side L - Electromechanical inverse curves (EM) ................................................................. 363
Residual overcurrent 50N.1/51N.1, 50N.2/51N.2 and 50N(Comp)/51N(Comp) - Electromechanical inverse curves (EM).........364
Ground directional overcurrent 67N - Electromechanical inverse curves (EM)..............................................................................365
Ground directional overcurrent 67N(Comp) - Electromechanical inverse curves (EM).................................................................366
8.5 APPENDIX B1 - I/O Diagram .........................................................................................................................................................................367
8.6 APPENDIX B2 - Interfaces ........................................................................................................................................................................... 368
8.7 APPENDIX B3 - Protective elements.......................................................................................................................................................... 369
8.8 APPENDIX B4 - Connection diagrams ....................................................................................................................................................... 370
8.9 APPENDIX C1 - Pro-NX Dimensions............................................................................................................................................................374
8.10 APPENDIX E - Revisions history...................................................................................................................................................................375
8.11 APPENDIX F - EC Declaration of conformity..............................................................................................................................................376
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6NVA100X-D - Manual - 02 - 2016 INTRODUCTION
1 INTRODUCTION
Scope and liability
The technical characteristics of NVA100X-D, protective relays instructions for installation, adjust-
ment and commissioning are illustrated.
This manual has been checked out, however, deviations from the description cannot be completely
ruled out, so that no liability in a legal sense for correctness and completeness of the information or
from any damage that might result from its use is formally disclaimed.
The information given in this document is reviewed regularly; any corrections and integration will be
included in subsequent editions that are identified by the date of revision.
We appreciate any suggestions for improvement.
We reserve the right to make technical improvements without notice.
Applicability
This manual is valid for NVA100X-D devices with firmware version 1.70 and following.
Conformity
The product complies with the CEE directives:
EMC Council Directives 2014/30/EC
Low voltage Directives: 2014/35/EC
Service support
Contact: Service tecnico THYTRONIC www.thytronic.it
Copyright
All right reserved; It is forbidden to copy, modify or store material (document and sw) protected by
copyright without Thytronic consent.
Warranty
Thytronic warrants devices against defects in materials and workmanship under normal use for a
period of ONE (1) year from the date of retail purchase by the original end-user purchaser (“Warranty
Period”).
Safety recommendations
The warming contained in this document are all-important for safety; special attention must be paid
to the following symbols:
Installation and commissioning must be carried out by qualified person; Thytronic assumes no re-
sponsibility for damages caused from improper use that does not comply all warning and caution in
this manual.
In particular the following requirements must be met:
Remove power before opening it.
Verify the voltage absence by means suitable instrumentation on relay connections; attention must
be paid to all circuits supplied by external sources (binary input, CT, etc...)
Care must be taken when handling metal parts.
Insulation tests
After insulation tests, hazardous voltages (capacitor charges,...) may be arise; it is advisable to grad-
ually reduce the test voltage avoiding to erase it abruptly.
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CAUTION Minor personal injury or property damage can result if proper precautions are not taken
DANGER Death, severe personal injury or substantial property damage will result if proper precautions
are not taken
WARNING Death, severe personal injury or substantial property damage can result if proper precautions
are not taken.
CAUTION Minor personal injury or property damage can result if proper precautions are not taken
DANGER Death, severe personal injury or substantial property damage will result if proper precautions
are not taken
WARNING Death, severe personal injury or substantial property damage can result if proper precautions
are not taken.
CAUTION
Settings must be established on the basis of a coordination study.
Numerical values inside examples have educational purpose only; they don’t be used, in no way,
for actual applications.
CAUTION
Settings must be established on the basis of a coordination study.
Numerical values inside examples have educational purpose only; they don’t be used, in no way,
for actual applications.

INTRODUCTION 7
NVA100X-D - Manual - 02 - 2016
Product identification
Each device is equipped with:
Identification label installed on the front side with following informations: code number, phase and
residual nominal currents, auxiliary voltage range and CE mark[1]:
Test label with following informations: data, serial number and test operator signature[2].
Environment
The NVA100X-D device must be employed according to the environment conditions shown (see tech-
nical data).
In case of different environment conditions, appropriate provisions must be provided (conditioning
system, humidity control, etc...).
If contaminants are present (dust, corrosive substances, etc...), filters must be provided.
Graphical conventions
The CEI/IEC and ANSI symbols is employed where possible:
e.g.: 51 = ANSI code concerning the overcurrent element.
Following text formats are used:
The ThySetter menu:
Phase overcurrent -50/51
The parameter description (measures, thresholds, operate time,...) and related value:
I> element
Definite time
I>def
The display messages (MMI) are shown as:
NVA100X
Notes are highlighted with cursive letters inside colored bar
Note: Useful description note
Glossary/definitions
fn
Rated frequency
InH Relay phase rated current side H
InpH Phase CT primary rated current side H
InL Relay phase rated current side L
InpL Phase CT primary rated current side L
Ing Protected device rated current
IEn1 Relay residual rated current (input 1)
IEnp1 Residual CT primary rated current (input 1)
IEn2 Relay residual nominal current (input 2)
IEnp2 Residual CT primary nominal current (input 2)
ANSI codes:21 Underimpedance
26 Thermal with Pt100 probes
27 Undervoltage
27V1 Positive sequence undervoltage
32P Directional active overpower
37 Undercurrent
37P Directional active underpower
40 Loss of field
46M-46G Negative sequence overcurrent
47 Phase reversal
49MG Thermal image
50/51 Phase overcurrent side H and side L
51LR(48)/14 Locked rotor
51V Voltage restraint overcurrent
50N1-2/51N1-2/87NHIZ* Residual overcurrent (sides1-2)/
High impedance restricted earth fault
50N(Comp)/51N(Comp) Calculated residual overcurrent
55 Minimum power factor
Note 1 The rating data can be found on labels on the back and on the front (accessible after removing the left frame)
Note 2 The rating data can be found on labels on the front plate (accessible after removing the right frame)
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NVA100X#0D2J0TE0
In5A
UAUX 110-230 Vac/dc
100V
100V
IEn
UEn
Un
1A 1A
5A 1A
5A
NVA100X#0D2J0TE0
In5A
UAUX 110-230 Vac/dc
100V
100V
IEn
UEn
Un
1A 1A
5A 1A
5A

8NVA100X-D - Manual - 02 - 2016 INTRODUCTION
59 Overvoltage
59N Residual overvoltage
59V2 Negative sequence overvoltage
64REF Low impedance restricted earth fault
66 Maximum number of startings (Restart inhibition)
67N Ground directional overcurrent
67N(Comp) Ground directional overcurrent with calculated
residual current
81O/81U Overfrequency and underfrequency
87G-87M/87T Double slope biased differential for generator/motor/transformer
BF Circuit breaker failure
74CT-74VT CT-VT supervision
74TCS Trip circuit supervision
52 o CB (Circuit Breaker) Circuit Breaker
52a Auxiliary contact in the breaker that is in the same position as the
breaker. It can be assigned to a binary input to locate the CB position
(Breaker failure and/or CB diagnostic functions).
52b Auxiliary contact in the breaker that is in the opposite position as the
breaker (52b open = CB closed)
DFR Digital Fault Recorder (Oscillography)
SER Sequential Event Recorder
SFR Sequential Fault Recorder
ANSI American National Standard Institute
IEEE Institute of Electrical and Electronics Engineers
IEC International Electrotechnical Commission
CENELEC Comité Européen de Normalisation Electrotechnique
K1...Kx Output relays
Pulse Output relay with pulse operation
tTR Output relay minimum pulse width
Latched Output relay with latched operation (manual reset) Output relay with
latched operation (automatic reset)
No-latched Output relay with no-latched operation (automatic reset)
CT Current Transformer
ThySensor Combo device
P1 IEC nomenclature for primary polarity mark of CTs (as an alternative to
a ANSI dot)
P2 IEC nomenclature for primary polarity mark of CTs (as an alternative to
a ANSI no-dot)
S1 IEC nomenclature for secondary polarity mark of CTs (as an alternative
to a ANSI dot)
S2 IEC nomenclature for secondary polarity mark of CTs (as an alternative
to a ANSI no-dot)
Self test Diagnostic
Start Leave an initial condition or reset condition (Pickup)
Trip Operation (with operate time)
Operating time Duration of time interval between the instant when the character-
istic quantity in reset condition is changed, under specified condi-
tions, and the instant when the relay operates
Dropout ratio The ratio of a reset value to an operate value in well-specified con-
ditions. The dropout ratio may be lower or greater than 1 according
as an over or under element is considered
Reset time Duration of the time interval between the instant when the charac-
teristic quantity in operate condition is changed, under specified
conditions, and the instant when the relay operates.
The stated reset time is related to a step variation of characteristic
quantity in operate condition to the reset condition.
Overshoot time The critical impulse time for a relay which is in its reset condition, is
the longest duration a specified change in the input energizing quan-
tities (characteristic quantity), which will cause the relay to change
to operate condition, can be applied without the relay switches. The
overshoot time is the difference from the operate time and the criti-
cal impulse time. The declared values for the overshoot time are ap-
plicable with the lower setting value of the operation time.
MMI (Man Machine Interface) Operator front panel
ThySetter Setting and monitoring software
Subnet Mask (Ethernet nomenclature)
Sw Software
Fw Firmware
Upgrade Firmware upgrade
XML eXtensible Markup LanguageXML
EXtensible Markup Language
Upgrade Firmware upgrade

INTRODUCTION 9
NVA100X-D - Manual - 02 - 2016
Symbols.ai
Symbols
I>> Start
I>> BF_OUT
IPh Block2
Logic internal signal (output); may be a logical state
(e.g.I>> Start
) or a numerical value
It is available for reading (ThySetter + communication interface)
Logic external signal (intput); may be a command coming from a binary input or a sw command
It is available for reading (ThySetter + communication interface)
Internal signal (e.g. Breaker Failure output state concerning to the 2nd threshold of the 50 element)
It is not available for reading (missing arrow)
AND and NAND logic gates
OR and NOR logic gates
Limit block (I>> threshold).
Computation block (Max phase current)
Threshold setting (e.g. pickup
I>>)
.
The value is available for reading and is adjustable by means ThySetter + MMI.
Switch
ON delay timer with reset (tON delay)
ON delay timer without reset (tON delay)
OFF delay timer (dropout) without reset (tOFF delay)
Curve type (definite/inverse time)
0T
IL3
Max[IL1 ,IL2 ,IL3 ]
IL2
IL1
tON tON tON tON
t
RESET
INPUT
OUTPUT
tOFF
t
tOFF
INPUT
OUTPUT
tON tON tON
t
INPUT
OUTPUT
0T
tON
& &
≥1≥1
EXOR logic gate
tOFF
=1
I>>
II ≥
I>>
tON
RESET
0T
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10 NVA100X-D - Manual - 02 - 2016 INTRODUCTION
Symbols1 .ai
t
RESET
INPUT
OUTPUT
tOFF
tOFF
tOFF tOFF
Minimum pulse width operation for output relays (tTR
)
tTR
t
tTR
INPUT
OUTPUT
tTR
0T
tTR
t
tTR
INPUT
OUTPUT
Latched operating mode for output relays and LEDs
Pulse operating mode for output relays
t
INPUT
OUTPUT
Latched
tTR
T0
RESET
OFF delay timer (dropout) with reset (tOFF delay)

GENERAL 11
NVA100X-D - Manual - 02 - 2016
2 GENERAL
Preface
The relay can be typically used in radial or meshed MV and LV networks as differential protection of
power generator/motor or transformer.
The phase and amplitude adaptation of the current for differential protection can be achieved can be
done either either by internal compensation or through external adapters.
Following input circuits are available:
Three phase current side H and three phase current side L with rated currents independently se-
lectable at 1 A or 5 A by means of sw settings
Two residual current side 1 and side 2 with rated currents independently selectable at 1 A or 5 A
by means of sw settings
Three phase voltages (line-to-ground) with rated voltages programmable in the range 50...130 V
(UR=100V) or 200...520 V (UR = 400V) and one residual voltage input with nominal voltage program-
mable in the range 50...130 V (UER=100V)
In addition to the main protection element, the breaker failure (BF), CT monitoring (74CT), VT monitor-
ing (74VT)and Trip Circuit Supervision (TCS), are also provided.
Setting, programming and reading operations must be effected by means of Personal Computer with
ThySetter software or by means of remote communication interface (RS485 bus and Ethernet net-
work); all operations must be performed through MMI.
Photo
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12 NVA100X-D - Manual - 02 - 2016 GENERAL
Main features
Metallic case.
Backlight LCD graphic Display.
Sixteen LEDs that may be joined with matrix criteria to many and various functions.
RESET key to clear LED indications and latched output relays.
Sixteen or thirty-two free settable binary inputs.
Independently settable for start, trip, self-test and control eight, sixteen output relay. Each output
relay may be set with normally energized or normally de-energized operating mode and manual or
automatic reset (latched/no-latched).
Rear Ethernet communication port, with MODBUS TCP/IP® or IEC61850 protocol, with RJ45 (cop-
per wires) and FX (optical fiber) connection.
Rear RS485 port, with ModBus protocol.
Ethernet front serial port (local communication for ThySetter).
IRIG-B syinchronizing input port (optional)
Real time clock with super capacitor.
The most significant constructive features are:
Galvanically insulated input and output circuits (communication and binary circuits included).
Optimum filtering of input signals through combined use of analog and digital filters.
Traditional electromechanical-type final output contacts with continuous monitoring of control coil
continuity.
Auxiliary supply comprising a switching-type voltage stabilizing circuit having a very wide working
range and a very small power dissipation
Nominal frequency: 50 or 60 Hz.
The most significant operating features are:
Programming of operating modes and parameters by means of the front keys and alphanumeric
display, with a programming procedure based on carrying out guided selections and on explicit and
immediate signalling of the operations being performed, so that such procedure can be carried out
without coding tables or mnemonic informations.
The feature modification operations do not interrupt the normal functions of the relay.
Impossibility of programming unacceptable parameter values, thanks to the automatic limitation of
top and bottom scale values for the relative setting ranges.
Currents are sampled 64 times per period and measured in the effective value (RMS) of the funda-
mental component using the DFT (Discrete Fourier Transform) algorithm and digital filters.
The fault recorder (SFR) runs continuously capturing in circular mode the last twenty events upon
trigger of binary input/output and/or element pickup (start-trip).
The event recorder (SER) runs continuously capturing in circular mode the last three hundred
events upon trigger of binary input/output.
Recording of the last setting changes (Logger).
Digital fault recorder (DFR) in COMTRADE format (oscillography).
All settings and data recordings (faults, events, meterings and oscillography records) are stored in
non-volatile memory and then are retained even when the auxiliary power supply goes down.
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TECHNICAL DATA 13
NVA100X-D - Manual - 02 - 2016
3 TECHNICAL DATA
3.1 GENERAL
Measuring relays and protection equipment
Reference standards IEC 60255-1
Part 1: Common requirements
Mechanical data
Mounting:
Flush.
Rack.
External dimensions (Flush mounting) 177 x 252 x 245 (high x width x depth)
Terminals screw connections
Mass (Flush mounting) 4.5 kg
Reference standards EN 60529, EN 60529/A1
Protection degree
Front IP52
• Terminals IP20
Insulation test
Reference standards EN 60255-5, IEC 60255-27
High voltage test (50 Hz 60 s)
Auxiliary power supply 2 kV
Input circuits 2 kV
Output circuits 2 kV
Output circuits (between open contacts) 1 kV
RS232/RS485 communication interfaces 500 V
Impulse voltage withstand test (1.2/50 μs):
Auxiliary power supply 5 kV
Input circuits 5 kV
Output circuits 5 kV
Output circuits (between open contacts) 1 kV
Insulation resistance >100 MΩ
Voltage dip and interruption
Reference standards EN 61000-4-29, IEC 60255-22-11
Voltage dips, short interruptions and voltage variations on dc input power port immunity tests
Interruption (UT=40%) 100 ms
Interruption (UT=0%) 50 ms
Voltage variations (UT=80...120%) 10 s
EMC tests for interference immunity
Reference standards IEC 60255-26, EN 60255-26
Electromagnetic compatibility requirements for measuring relays and protection equipment
Electromagnetic compatibility (EMC) - Generic standards EN 61000-6-2
Apparati di automazione e controllo per centrali e stazioni elettriche (ENEL utility standard)
Compatibilità elettromagnetica - Immunità ENEL REMC 02
• Normativa di compatibilità elettromeccanica per apparati e sistemi ENEL REMC 01
Reference standards EN 60255-22-1 IEC 60255-22-1
EN 61000-4-12 EN 61000-4-12
Damped oscillatory wave
0.1 MHz and 1 MHz common mode 2.5 kV
0.1 MHz and 1 MHz differential mode 1.0 kV
Ring wave common mode 2.0 kV
Ring wave differential mode 1.0 kV
Reference standards EN 60255-22-2 IEC 60255-22-2
EN 61000-4-2 IEC 61000-4-2
Electrostatic discharge
Contact discharge 6 kV
Air discharge 8 kV
Reference standards EN 60255-22-3 IEC 60255-22-3
EN 61000-4-3 IEC 61000-4-3
Radiated radio-frequency fields
80...1000 MHz AM 80% 10 V/m
900 MHz Pulse modulated 10 V/m
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14 NVA100X-D - Manual - 02 - 2016 TECHNICAL DATA
Reference standards EN 60255-22-4 IEC 60255-22-4
EN 61000-4-4 IEC 61000-4-4
Fast transient burst (5/50 ns)
Auxiliary power supply 2 kV
Input circuits 4 kV
Reference standards EN 60255-22-5 IEC 60255-22-5
EN 61000-4-5 IEC 61000-4-5
High energy pulse
Uaux (line-to-ground 10 ohm, 9 μF) 2 kV
Uaux (line-to-line 0 ohm, 18 μF) 1 kV
I/O ports (line-to-ground 40 ohm, 0.5 μF) 2 kV
I/O ports (line-to-line 40 ohm, 0.5 μF) 1 kV
Reference standards EN 60255-22-6 IEC 60255-22-6
EN 61000-4-6 IEC 61000-4-6
Conducted radio-frequency fields
0.15...80 MHz AM 80% 1kHz 10 V
Reference standards EN 60255-22-7 IEC 60255-22-7
EN 61000-4-16 IEC 61000-4-16
Power frequency
Dc voltage 30 V
50 Hz continuously 30 V
50 Hz 1 s 300 V
0.015...150 kHz 30 V
Reference standards EN 61000-4-8 IEC 61000-4-8
Magnetic field 50 Hz
50 Hz continuously 100 A/m
50 Hz 1 s 1 kA/m
Reference standards EN 61000-4-10 IEC 61000-4-10
Damped oscillatory magnetic field
Damped oscillatory wave 0.1 MHz 30 A/m
• Damped oscillatory wave 1 MHz 30 A/m
Emission
Reference standards EN 60255-25 IEC 60255-25
EN 61000-6-4 IEC 61000-6-4
EN 55011 CISPR 11
Electromagnetic emission tests
Conducted emission auxiliary power supply 0.15...0.5 MHz 79 dB μV
Conducted emission auxiliary power supply 0.5...30 MHz 73 dB μV
Radiated emission 30...230 MHz 40 dB μV/m
• Radiated emission 230...1000 MHz 47 dB μV/m
Mechanical tests
Reference standards EN 60255-21-1 EN 60255-21-2 RMEC01
Vibration, shock, bump and seismic tests on measuring relays and protection equipment
EN 60255-21-1 Vibration tests (sinusoidal) Class 1
EN 60255-21-2 Shock and bump test Class 1
Climatic tests
Reference standards IEC 60068-x ENEL R CLI 01 CEI 50
Environmental testing
Ambient temperature -25...+70 °C
Storage temperature -40...+85 °C
Relative humidity 10...95 %
Atmospheric pressure 70...110 kPa
Safety
Reference standards IEC 60255-27
Pollution degree 3
Reference voltage 250 V
Overvoltage category III
Certifications
Product standards EN 50263
CE Conformity
EMC Directive 2014/30/EC
Low Voltage Directive 2014/35/EC
Type tests IEC 60255-1
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TECHNICAL DATA 15
NVA100X-D - Manual - 02 - 2016
3.2 INPUT CIRCUITS
Auxiliary power supply Uaux
Voltage
Nominal value (range)[1] 24...48 V~/-
115...230 V~/110...220 V-
Operative range (each one of the above nominal values) 19...60 V~/-
85...265 V~/75...300 V-
Inrush current (max)
24 V- 6 A, 5 ms
48 V- 14 A, 5 ms
110 V- 20 A, 1 ms
230 V~ 50 A, 1 ms
Frequency (for alternate voltage supply) 45...66 Hz
Max distortion factor ( for alternating voltage supply) 15%
Max alternating component (for dc voltage supply):
Full wave rectified sine wave 100 %
Sine wave 80 %
Power consumption:
1 energized relay, MMI ON, Ethernet active (24V, 48V, 110V-) 10 W
1 energized relay, MMI ON, Ethernet active (230 V~) 22 VA
Phase current inputs - side H and side L
Relay nominal phase current InH and InL 1 A or 5 A selectable by sw
Permanent overload 25 A
Thermal overload (1 s) 500 A
Dynamic overload (half cycle) 1250 A
Rated consumption (for any phase) ≤0.002 VA with In=1 A
≤0.04 VA with In=5 A
Residual current inputs - side 1 and side 2
Relay nominal residual current IEn1 and IEn2 1 A or 5 A selectable by sw or dip-switch
Permanent overload 25 A
Thermal overload (1 s) 500 A
Dynamic overload (half cycle) 1250 A
Rated consumption ≤0.006 VA with IEn=1 A
≤0.12 VA with IEn=5 A
Phase voltage inputs
Relay phase to phase nominal voltage Un[2] 50...130 V (UR= 100 V)
200...520 V (UR= 400 V)
Relay phase nominal voltage En= Un/ √3 -
Permanent overload 1.3 Un
Thermal overload (1 s) 2 Un
Rated consumption (for any phase) ≤ 0.5 VA
Residual voltage input
Relay residual nominal voltage UEn 50...130 V
Permanent overload 1.3 UEn
Thermal overload (1 s) 2 UEn
Rated consumption ≤ 0.5 VA
Binary inputs
Quantity 16 o 32[1]
Type optocoupler
Operative range 24...265 V~/-
Min activation voltage UDIGmin 18 V[3]
Max consumption, energized 3 mA
Timers
Acquisition delay OFF/ON (IN1 tON, IN2 tON) 0.00...100.0 s
Acquisition delay ON/OFF (IN1 tOFF, IN2 tOFF) 0.00...100.0 s
Logic DIRECT/INVERSE
Block input (Logic selectivity)
Quantity 1
Type polarized wet input (powered by internal isolated supply)
Max consumption, energized 5 mA
Note 1 Version must be selected at ordering
Note 2 UR= 100 V or UR= 400 V version must be selected at ordering
Note 3 Through external module AUX-IN the activation threshold can be selected:
- 24V (20 Vdc/15 Vac)
- 110V (82...84 Vdc/61...63 Vac),
- 230V (200...204 Vdc/144...147 Vac),
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16 NVA100X-D - Manual - 02 - 2016 TECHNICAL DATA
3.3 OUTPUT CIRCUITS
Relays
Quantity 8 or 16
[1]
Type
KC1-1, KC1-2, KC1-7, KC1-8, KC2-1, KC2-2, KC2-7, KC2-8 changeover (SPDT, type C)
KC1-3, KC1-4, KC1-5, KC1-6, KC2-3, KC2-4, KC2-5, KC2-6 make (SPST-NO, type A)
Rated current 8 A
Short duration current (0,5 s) 30 A
Rated voltage/max switching voltage 250 V~/400 V~
Make 1000 W/VA
Minimum switching load 300 mW (5 V/ 5 mA)
Life
Mechanical 106
Electrical 105
Breaking capacity:
Direct current (L/R = 40 ms) 50 W
Alternating current (λ= 0,4) 1250 VA
Minimum pulse width 0....500 ms (step 5 ms)
Block output (Logic selectivity)
Quantity 1
Type optocoupler
3.4 MMI (MAN MACHINE INTERFACE)
Display 128 x 64 graphic LCD
LEDs
Numero 16
ON/fail (verde) 1
Start (giallo) 1
Trip (rosso) 1
Programmabili (rosso) 13
Keyboard 8 keys
3.5 COMMUNICATION INTERFACES
Local port
Ethernet 100 Base TX
Baud rate 230400 bps
Protocol ModBus®TCP/IP
Connector RJ45
Remote ports
RS485
Connection screw terminals
Baud rate 1200...57600 bps
Protocol[2] ModBus®RTU
IEC 60870-5-103
DNP3
Ethernet 100BaseT
Connection[3] Optical fiber 1300 nm, ST
100 Base TX, RJ45
Baud rate 100 Mbps
Protocol ModBus®TCP/IP, IEC51850 Level A
Enable Delayed Trip[4] ON/OFF
Delayed Trip delay time 0.00...10.00 s (step 0.01 s)
Note 1 The quantity of binary inputs and output relays (8+8 relè di comando o 8 relè di comando +16 relè di segnalazione) depend on the version that
must be specified at ordering
Note 2 Different version must be selected at ordering
Note 3 Different version must be selected at ordering; two redundant port selectable with TX (RJ45) or FX (fiber) connections or two ports with TX
(RJ45) connections. The secondary port is activated in the event of failure of the primary port or by means of hw-sw switching command
Note 4 Parameters concern the IEC61850 protocol. Settings are available inside the Set \ Base menu.
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TECHNICAL DATA 17
NVA100X-D - Manual - 02 - 2016
3.6 RATED VALUES AND GENERAL SETTINGS
Rated values
Relay nominal frequency (fn) 50, 60 Hz
Relay phase rated current - side H and L (InH and InL) 1 A or 5 A [1]
Phase CT primary rated current side H and L (InpH and InpL) 1 A...20 kA
1...499 A (step 1 A)
500...4990 A (step 10 A)
5000...20000 A (step 100 A)
Relay residual rated current - side 1 and 2 (IEn1 and IEn2) 1 A or 5 A [1]
Residual CT primary rated current - side 1 and 2(IEnp1 e IEnp2)1 A...20.0 kA
1...499 A (step 1 A)
500...4990 A (step 10 A)
5000...20000 A (step 100 A)
Relay phase to phase rated voltage (Un) [2] 50...130 V (step 1 V)
200...520 V
(step 1 V)
Relay residual rated voltage (measured) (UEn) 50...130 V
Residual primary rated voltage (phase-to-phase) ∙√3 (UEnp) 50 V...500 kV
50 V...500 kV
50...499 V (step 1 V)
500...4990 V (step 10 V)
5000...49900 V (step 100 V)
50000...500000 V (step 1000 V)
Relay calculated residual rated voltage (UECn) UECn = Un· √3 = 3 · En
Relay phase to ground rated voltage (En) En = Un/ √3
Line VT primary rated voltage (phase-to-phase) (Unp) 50 V...500 kV
50...499 V (step 1 V)
500...4990 V (step 10 V)
5000...49900 V (step 100 V)
50000...500000 V (step 1000 V)
Relay rated active power (Pn) Pn = √3 ∙ Un ∙ In = 3 ∙ En ∙ In
Relay rated reactive power (Qn) Qn = √3 ∙ Un ∙ In = 3 ∙ En ∙ In
Relay rated apparent power (Sn) Sn = √3 ∙ Un ∙ In = 3 ∙ En ∙ In
Relay rated impedance (Zn) Zn= Un/InL
Relay rated phase impedance (Znf) Znf= En/InL
Rated current of the protected object (Ing) 1 A...20 kA
1...499 A (step 1 A)
500...4990 A (step 10 A)
5000...20000 A (step 100 A)
Primary nominal current chosen as reference (Inref)[3] - (set by device)
Side reference for compensation (Refsize)[2] - (set by device)
Current matching type (MatchType) INTERNAL/EXTERNAL
Protected object by differential protection (ProtObj) Motor-Generator-Transformer
Transformer data (87T element)
Transformer rated power (Snt) 0.01...1000.00 MVA (step 0.01 MVA)
Transformer rated voltage side H and L (VntH, VntL) 0.200...500.00 kV
0.200...0.999 kV (step 0.001 kV)
1.00...500.00 kV (step 0.01 kV)
Transformer rated current side H (IntH) [3] - (set by device)
Transformer mismatching factor side H (mH)[3] - (set by device)
Transformer base current side H (IBH)[3] -InH
Transformer grounding side H (GndH) In/Out
Transformer connection side H (ConnH) Y/D/Z
Transformer vector group side H (VectGroupH) 0
Transformer rated current side L (IntL) [3] - (set by device)
Transformer mismatching factor side L (mL)[3] - (set by device)
Transformer base current side L (IBL)[3] -InL
Transformer grounding side L (GndL) In/Out
Transformer connection side L (ConnL) y/d/z
Transformer vector group side L (VectGroupL) 0-1-2-...11
Binary inputs
OFF/ON delay time (IN1 tON, INx tON) 0.10...100.0 s
0.10...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
ON/OFF delay time (IN1 tOFF, INx tOFF) 0.10...100.0 s
0.10...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Logic Active-ON/Active-OFF
Note 1 The nominal current settings doesn’t concern the protection elements; they must agree setting (1 A or 5 A)
Note 2 The setting ranges of the relay rated voltage URare dependent on the purchased version (100 V or 400 V)
Nota 3 Calculated by relay
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18 NVA100X-D - Manual - 02 - 2016 TECHNICAL DATA
Output relays
Minimum pulse width 0.000...0.500 s (step 0.005 s)
Logic De-energized/Energized
Operating mode Latched/No latched
Input sequence
Side H phase current sequence (I-SequenceH) IL1-IL2-IL3, IL1-IL3-IL2....
Side L phase current sequence (I-SequenceL) IL1-IL2-IL3, IL1-IL3-IL2....
Phase voltage sequence (U-Sequence) UL1-UL2-UL3, UL1-UL3-UL2,....
Polarity
A1-A2 Terminals polarity (A1-A2 POL) NORMAL/REVERSE
A3-A4 Terminals polarity (A3-A4 POL) NORMAL/REVERSE
A5-A6 Terminals polarity (A5-A6 POL) NORMAL/REVERSE
A7-A8 Terminals polarity (A7-A8 POL) NORMAL/REVERSE
B3-B4 Terminals polarity (B3-B4 POL) NORMAL/REVERSE
B5-B6 Terminals polarity (B5-B6 POL) NORMAL/REVERSE
B7-B8 Terminals polarity (B7-B8 POL) NORMAL/REVERSE
B9-B10 Terminals polarity (B9-B10 POL) NORMAL/REVERSE
C1-C2 Terminals polarity (C1-C POL) NORMAL/REVERSE
C3-C4 Terminals polarity (C3-C POL) NORMAL/REVERSE
C5-C6 Terminals polarity (C5-C6 POL) NORMAL/REVERSE
C7-C8 Terminals polarity (C7-C8 POL) NORMAL/REVERSE
Starting control set
CLP input source (CLP Source) IRUN/CB
IRUN Threshold (IRUN) 0.10 IB
3.7 PROTECTIVE FUNCTIONS
Base current - IB
Base current (IB)[1] 0.10...2.50 In (step 0.01 In)
Underimpedance - 21
Z< Element
Definite time
First threshold definite time (Z<def) 0.02...3.00 Zn[2] (step 0.01 Zn)
Operate time (
t
Zdef<) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Reset time delay (
t
Z<RES)0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Z<< Element
Definite time
Second threshold definite time (Z<<def) 0.02...3.00 Zn[2] (step 0.01 Zn)
Operate time (
t
Zdef<<) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Reset time delay (
t
Z<<RES)0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.04 s
Dropout ratio 1.03...1.05
Dropout time ≤ 0.05 s
Overshoot time 0.03 s
Reference values rest: 1.5 IT
trip: 0.5 IT[3]
Pickup accuracy ± 4% ± 0.5% Zn
Operate time accuracy 5% or ± 10 ms
Nota 1 The base current IBrepresents the rated current of the line or transformer, referred to the nominal current of the CT’s for thermal image protection.
Note 2 Zn is the impedance given by the ratio between the relay rated voltage relay (Un) and the rated current of the relay (In) Zn= Un/In
Nota 3 IT is the value of input current required to trip for a given threshold setting and for a given input voltage (eg with setting Z<= 1.00 Znand input
voltage 1.00 Un, the reference value ITis 1.00 In)
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TECHNICAL DATA 19
NVA100X-D - Manual - 02 - 2016
Thermometric probes - 26[1]
Alarm ThAL1...8: Alarm threshold (ThAL1...8) 0...200 °C
Operate time (tThAL1...8) 0....100 s
Trip Th>1...8: Trip threshold (Th>1...8) 0...200 °C
Operate time (tTh>1...8) 0....100 s
Undervoltage - 27
Common configuration: Voltage measurement type (Utype27)[2] Uph-ph/Uph-n
Operating logic (Logic27) AND/OR
U< Element Curve type (U<Curve) DEFINITE/INVERSE[3]
Definite timeFirst threshold definite time (
U
<def) 0.05...1.10 Un/En (step 0.01 Un/En)
Operating time (tU<def) 0.03...100.0 s
0.03...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Inverse timeFirst threshold inverse time (
U
<inv) 0.05...1.10 Un/En (step 0.01 Un/En)
Operating time (tU<inv) 0.10...100.0 s
0.10...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
U<< Element
Definite timeSecond threshold definite time (
U
<<def) 0.05...1.10 Un/En (step 0.01 Un/En)
Operating time (tU<<def) 0.03...100.0 s
0.03...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.04 s
Dropout ratio 1.03...1.05
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 0.5% with Un/En - ±0.2% with 1Un/En
Operate time accuracy 5% or ± 10 ms
Positive sequence undervoltage - 27V1
U1< Element
Definite timeFirst threshold definite time (U1<def) 0.05...1.10 En (step 0.01 En)
Operating time (tU1<def) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.04 s
Dropout ratio 1.03...1.05
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 4% with 0.01Un,±0.3% with 0.15Un
Operate time accuracy 5% or ± 10 ms
Directional active overpower 32P
P
1> Element
SetpointsTripping direction (P1>DIR)P Forward/P Reverse/P Forward-Reverse
Reset time delay (tP1>RES)0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Definite timeFirst threshold definite time (
P
1>def) 0.01...1.50 Pn
Operating time (tP1>def) 0.07...100.0 s
P
2> Element
SetpointsTripping direction (P2>DIR)P Forward/P Reverse/P Forward-Reverse
Reset time delay (tP2>RES)0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Nota 1 Optional function
Note 2 With Uph-ph setting all thresholds are in p.u. Un, with Uph-n setting all thresholds are in p.u En
Note 3 The mathematical formula for INVERSE curve is: t= (0.75 ∙ tU<inv) / [1 - (U/U<inv)], where:
t : operating time (in seconds), tU<inv : operating time setting (referred to U/U<inv = 0.25 ), U : input voltage, U<inv: threshold setting
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20 NVA100X-D - Manual - 02 - 2016 TECHNICAL DATA
Definite timeSecond threshold definite time (
P
2>def) 0.01...1.50 Pn
Operating time (tP2>>def) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.04 s
Dropout ratio 0.95...0.98
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 3% con 0.01 Pn,±0.5% con 0.1 Pn
Operate time accuracy 5% or ± 10 ms
Undercurrent - 37
Operating logic (Logic37) AND/OR
Definite timeFirst threshold definite time (I<def) 0.10...1.00 In(step 0.01 In)
Operating time (t<def) 0.04...200 s
0.04...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...200 s (step 1 s)
Pickup time ≤ 0.04 s
Dropout ratio 1.03...1.05
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 0.5% with 0.1In,
±0.2% with 1In
Operate time accuracy 5% or ± 10 ms
Directional active underpower 37P
Common configuration: Enable (CB-37P) ON/OFF
Delay (tARM-P<) 0.07...300 s
0.07...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...300 s (step 1 s)
P1< Element
SetpointsTripping direction (P1<DIR)P Forward/P Reverse/P Forward-Reverse
Definite timeFirst threshold definite time (
P
1<def) 0.01...1.50 Pn
Operating time (tP1<def) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
P2< Element
SetpointsTripping direction (P2<DIR)P Forward/P Reverse/P Forward-Reverse
Definite timeSecond threshold definite time (
P
2<def) 0.01...1.50 Pn (step 0.01 Pn)
Operating time (tP2<def) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.04 s
Dropout ratio 1.03...1.05
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 3% with 0.01 Pn, ± 0.5% with 0.1 Pn
Operate time accuracy 5% or ± 10 ms
Loss of field - 40
Common configurations: Operating mode (Mode 40) Motor/Generator
Undervoltage threshold (USUP<) 0.50...1.00 U
n
(step 0.01 U
n
)
40AL Alarm Inclination angle (ALPHA40AL) 10...75° (step 1°)
Operating time (t40AL) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
XC1-XD1 Element Absolute center coordinate (XC1) 0.00...4.50 Z
nf
(step 0.01 Z
nf
)
Diameter (XD1) 0.20...5.00 Z
nf
(step 0.01 Z
nf
)
Operating time (tXC1XD1) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Reset time delay (tXC1XD1-RES)0.0...10.0 s (step 0.1 s)
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Table of contents
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