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Thytronic NC20 Manual

Multifunction protection for bank capacitors/harmonic filters with under/overvoltage elements
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NC20
MULTIFUNCTION PROTECTION FOR
BANK CAPACITORS/HARMONIC FILTERS
WITH UNDER/OVERVOLTAGE ELEMENTS
MANUAL
NC20 - Manual - 01 - 2015

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Summary of Contents for Thytronic NC20

  • Page 1 NC20 MULTIFUNCTION PROTECTION FOR BANK CAPACITORS/HARMONIC FILTERS WITH UNDER/OVERVOLTAGE ELEMENTS MANUAL NC20 - Manual - 01 - 2015...

  • Page 2: Table Of Contents

    Trip Circuit Supervision - 74TCS ................................. 23 Selective block - BLOCK2 ................................... 23 Circuit Breaker supervision ..................................23 CT supervision - 74CT ....................................23 Pilot wire diagnostic ....................................23 Demand measures ....................................... 23 NC20 - Manual - 01 - 2015...
  • Page 3 Internal states ......................................130 Relays ..........................................131 Counters ........................................131 Self test .........................................131 Pilot wire diagnostic ....................................132 Selective Block - BLOCK2 ..................................132 Fault recording - SFR ....................................132 Event recording - SER ....................................133 Oscillography - DFR ....................................133 NC20 - Manual - 01 - 2015...
  • Page 4 8.6 APPENDIX B3- Connection diagrams .................................187 8.7 APPENDIX C - Dimensions ................................... 189 8.8 APPENDIX D - Setting table ..................................190 8.8 APPENDIX E - Revisions history ...................................226 8.9 APPENDIX F - EC Declaration of conformity ..............................227 NC20 - Manual - 01 - 2015...

  • Page 5: Introduction

    I N T R O D U C T I O N Scope and liability This document describes the functions, the technical data of NC20 devices; instructions for mount- ing, setting and commissioning are included. 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.

  • Page 6: Product Identification

    Test label with following informations: data, serial number and test operator signature. Environment The NC20 device must be employed according to the environment conditions shown (see technical data). In case of different environment conditions, appropriate provisions must be provided (conditioning system, humidity control, etc...).
  • Page 7 Setting and monitoring software Log fi le A text fi le that lists actions that have occurred (ThySetter). J2SE Java Platform Standard Edition Subnet Mask (Ethernet nomenclature) Software Firmware Upgrade Firmware upgrade eXtensible Markup Language PREFACE NC20 - Manual - 01 - 2015...
  • Page 8 EXOR logic gate INPUT ON delay timer with reset ( delay) OUTPUT RESET RESET INPUT ON delay timer without reset ( delay) OUTPUT INPUT OFF delay timer (dropout) without reset ( delay) OUTPUT Symbols.ai NC20 - Manual - 01 - 2015 PREFACE...
  • Page 9 RESET INPUT Minimum pulse width operation for output relays ( OUTPUT INPUT Latched operating mode for output relays and LEDs Latched OUTPUT INPUT Pulse operating mode for output relays OUTPUT Symbols1 .ai PREFACE NC20 - Manual - 01 - 2015...

  • Page 10: General

    ThySetter software or by means of remote communication interface (RS485 bus and Ethernet net- work); all operations must be performed through MMI. According to the hardware confi gurations, the NC20 protection relay can be shipped in various case styles depending on the required mounting options: •...

  • Page 11: Main Features

    (start-trip). • The event recorder (SER) runs continuously capturing in circular mode the last three hundred events upon trigger of binary input/output. • Digital fault recorder (DFR) in COMTRADE format (oscillography). GENERAL NC20 - Manual - 01 - 2015...

  • Page 12: Technical Data

    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 fi elds • 80...1000 MHz AM 80% 10 V/m • 900 MHz Pulse modulated 10 V/m NC20 - Manual - 01 - 2015 TECHNICAL DATA...

  • Page 13: Emission

    Reference voltage 250 V Overvoltage category Certifi cations Reference standards Product standard for measuring relays EN 50263 CE Conformity • EMC Directive 2004/108/EC • Low Voltage Directive 2006/95/CE Type tests IEC 60255-1 TECHNICAL DATA NC20 - Manual - 01 - 2015...

  • Page 14: Input Circuits

    1000 W/VA Short duration current (0,5 s) 30 A Minimum switching load 300 mW (5 V/ 5 mA) Life: • Mechanical operations • Electrical operations Block output (Logic selectivity) Quantity Type optocoupler NC20 - Manual - 01 - 2015 TECHNICAL DATA...

  • Page 15: Mmi

    Protocol ModBus®RTU IEC 60870-5-103 DNP3 Ethernet 100BaseT • Connection Optical fi ber 1300 nm, ST 100 Base TX, RJ45 • Baud rate 100 Mbps • Protocol ModBus®TCP/IP, IEC61850 - Level A TECHNICAL DATA NC20 - Manual - 01 - 2015...

  • Page 16: General Settings

    Note 3 The mathematical formula for INVERSE curve is: t= 0.75 ∙ t = operating time (in seconds) < = operatie time setting (in seconds) U = input voltage U< = threshold setting NC20 - Manual - 01 - 2015 TECHNICAL DATA...

  • Page 17: Undercurrent - 37

    = RMS value of fundamental component for neutral current, = compensation setting for neutral current). Note 5 Setting of the compensation parameters are available inside the Set\46N Compensation menu, common for the A and B profi les TECHNICAL DATA NC20 - Manual - 01 - 2015...

  • Page 18: Thermal Image - 49

    Note 2 The equivalent thermal current is based on the greater RMS phase current. = max( the computed RMS LMAX L1RMS L2RMS L3RMS value takes into account the contribution of fundamental and harmonic up to eleventh order. NC20 - Manual - 01 - 2015 TECHNICAL DATA...

  • Page 19: Rms Phase Overcurrent - 50/51

    Asymptotic reference value: 1.1 I> Minimum operate time: 0.1 s Equation is valid for 1.1 ≤ I /I> ≤ 20 With I> pickup ≥ 2.5 I , the upper limit is 50 I TECHNICAL DATA NC20 - Manual - 01 - 2015...

  • Page 20: Phase Overcurrent - 50/51 Fundamental

    0.04...9.99 s (step 0.01 s) 10.0...99.9 s (step 0.1 s) 100...200 s (step 1 s) Note 1 The residual current is calculated from the vector sum of the three phase currents ( NC20 - Manual - 01 - 2015 TECHNICAL DATA...
  • Page 21 Asymptotic reference value: 1.1 I > Minimum operate time: 0.1 s Equation is valid for 1.1 ≤ I > ≤ 20 With I > pickup ≥ 2.5 I , the upper limit is 50 I TECHNICAL DATA NC20 - Manual - 01 - 2015...

  • Page 22: Overvoltage - 59

    Asymptotic reference value: 1.1 U> Minimum operate time: 0.1 s U/U> Equation is valid for 1.1 ≤ ≤ 4 With U> pickup ≥ 0.5 U , the upper limit is 2 U NC20 - Manual - 01 - 2015 TECHNICAL DATA...

  • Page 23: Control And Monitoring

    K1... K6, K7...K10, IN1, IN2, IN3...IN42 Note 1 For the DFR function a licence is required; call Thytronic for purchasing. Note 2 The measures of temperature are available only when the MPT module on Thybus is enabled (eigth Pt100 inputs) Note 3 Output relay K7...K10 and binary input IN3...IN42 states are available only when the concerning I/O circuits are implemented (MRI and MID16...

  • Page 24: Plc (Programmable Logic Controller)

    L 2MIN L 3MIN Note 1 For the PLC function a licence is required; call Thytronic for purchasing. Note2 With ThySetter V3.4.3 release and compiler IEC 61131-3 V1.2.7 only the IL language is implemented (Instruction List); other languages, according with IEC 61131 standard (ST (Structured Text)), LD (Ladder Diagram), FBD (Function Block Diagram), SFC (Sequential...

  • Page 25: Function Characteristics

    RELAYS Output contacts Output contacts K1...K6 K1...K6 POWER SUPPLY BOARD POWER SUPPLY BOARD hw.ai hw.ai Printed boards hold the circuit components arranged according to a modular allocation of the main functions. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 26: Power Supply Board

    The removable plug allows separation of the MMI module for free access to the CPU board when DIP-switch setting is required. Note 1 The phase and residual nominal currents must be adjusted by means dip-switch. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 27: Software Description

    Example are: • Keyboard management • RTC (Real Time Clock) updating • RAM/EEPROM updating • Diagnostic • Input acquisition • Output relay management • • I/O updating • DSP data processing FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 28: Drivers

    Xml fi les used for communication. The automatic code generation criteria ensures the quality of the result in terms of the reusability, verifi ability and maintainability of the software life cycle. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 29: I/O Description

    Unbalance neutral current instantaneous value ...u Phase voltage instantaneous values From the sampled quantities, several measures are computed for protection, monitoring and meter- ing purposes. • Direct • Calculated • Harmonic • Demand FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 30 Phase voltages (RMS value of the fundamental component) U ACQUISITION ACQUISITION ≈ ≈ UL1. a i UL1 .a i • Unbalanced neutral current (RMS value of the fundamental component) I ACQUISITION ACQUISITION ≈ ≈ IN. ai IN.a i NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 31 L 3 RMS L-RMS L-RMS mean(I mean(I L3RMS L3RMS L1RMS L1RMS L 2 RMS L 2 RMS L 3 RMS L 3 RMS AV-R MS . a i AV-R MS . a i FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 32 L 2 MIN ∙60 ∙60 R OL R OL L 3 MIN L 3 MIN L x MIN L x MIN L x n L x n ∙60 ∙60 Reset Reset Min-Demand.ai Min-Demand.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 33: Conventions

    D i re c t se q uence cy cl i c order D i re c t se q uence cy cl i c order Inverse sequence cy cl i c order Inverse sequence cy cl i c order fasori1.ai fasori1.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 34: Use Of Measured Values

    Event 2 Event ... Event 299 FAULT RECORDING (SFR) Fault 0 Fault 1 Fault 2 Fault ... Fault 19 DIGITAL FAULT RECORDER (OSCILLOGRAPHY) Record 1 Record 2 Record 3 Record ... NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 35: Binary Inputs

    52b (CB auxiliary contact) Open CB command Close CB command Preset DTheta (thermal image preset) Reset discharge remaining time Reset full discharge counters 27 Element disabling Remote trip Reset on demand measures FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 36 Note 1 To enable the profi le switching the “Input-selected” parameter must be set inside the “Profi le selection” submenu. If multiple setting groups are not required, Group A is the default selection NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 37 Note 4 The activation of one binary input produces indiscriminately a block of all protective elements programmed for being blocked from Block1 FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 38 Binary input allocation for CB state acquisition Binary input allocation for CB state acquisition CB-pos.ai CB-pos.ai Note 1 The reset of the total counters is practicable by means ThySetter command with Session Level 1 (available with password) NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 39 INx t INx t INx t INx t Reset discharge timer Reset discharge timer n.o. n.o. Binary input INx Binary input INx Reset discharge timer tD Reset discharge timer tD Reset-TD.ai Reset-TD.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 40: Output Relays

    - No-latched , in order that it stays ON for normal conditions and the other way round it goes OFF if any fault is detected and/or the auxiliary supply turns OFF. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 41 Cumulative CB tripping I^2t diagnostic relays (SumI^2t-K) Circuit breaker opening time diagnostic relays (tbreak-K) Open CB command relays (CBopen-K) Close CB command relays (CBclose-K) Remote tripping relays (RemTrip-K) Not received pulses at BLIN signalling relays (PulseBLIN-K) FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 42: Led Indicators

    Note 1 The START and the TRIP LED are user assignable to any function; other than starting and tripping information can be assigned to them too, just the same for L1...L5 Note 2 All LEDs are unassigned in the default setting. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 43 Number of CB trips diagnostic LEDs (N.Open-L) Circuit breaker opening time diagnostic LEDs (tbreak-L) Open CB command LEDs (CBopen-L) Close CB command LEDs (CBclose-L) Remote tripping LEDs (RemTrip-L) Not received pulses at BLIN signalling LEDs (PulseBLIN-L) FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 44: Communication Interfaces

    Communication interfaces Several communication ports are provided: • RS232 port on the front side of the NC20 device for local communication (ThySetter). • RS485 port on the rear side of the NC20 device for bus communication. • Ethernet port on the rear side of the NC20 device for bus communication.

  • Page 45: Protective Elements

    Phase to ground VTs connection Phase to ground VTs connection Es1-Un.ai Es1-Un.ai The relay nominal voltage may be set to: / √3 · K = 6000 /√3 · 60 = 100 /√3 = 58 V FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 46 This parameter affects the measure of the neutral unbalance current when the primary measure- ment reading mode is selected. It must be programmed to the same value of the neutral CT(s) primary nominal current. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 47 Measures may be displayed according the following operating modes: - With RELATIVE setting all measures are related to the nominal value, - With PRIMARY setting all measures are related to the primary value. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 48: Thermal Protection With Rtd Thermometric Probes - 26

    0 . 2 5 s 0 . 2 5 s 0 . 2 5 s Pt1...8 update Pt1...8 update t-refresh-F26.ai t-refresh-F26.ai Note 1 The 26 menu is available when the MPT module is enabled NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 49 Th>xBF Logic diagram for thermal protection with RTD thermometric probes (26) Fun-F26.ai Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 50: Undervoltage - 27

    Logic27 parameter; the allowed settings are OR (at least one voltage lower than threshold) or And (all three voltage must be lower than threshold). NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 51 All the named parameters can be set separately for Profi le A and Profi le B (Set\Profi le A(or B)\Un- dervoltage - 27 \ U< Element (U<< Element) \Setpoints menus). Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 52 Logic diagram concerning the second threshold (U<<) of the undervoltage element - 27 Fun-F27_S2.ai Fun-F27_S2.ai Note 1 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 53 0.01 0.25 Note: match of operating and setting time takes place when U/U< = 0.25 Inverse time operating characteristic concerning the first threshold (U<) of the undervoltage element - 27 F_27-Char.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 54: Undercurrent - 37

    Set \ Inputs \ Binary input IN1(x) menus (IN1 or INx matching). Note 1 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 55 INx t INx t n.c. INx t Block1 input (ON≡Block) INx t Block1 n.o. Binary input INx Logic diagram concerning the second threshold (I<<) of the undercurrent element - 37 Fun-F37_S2.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 56: Td Discharge Time

    Set \ Inputs \ Binary input 1(x) Note 1 The function must be assigned to the selected binary input inside the menu. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 57: Phase Unbalance Current - 46

    & Block1 I>>>BF I2>>BF Trip I>>> & Start I2>> I2>>BLK2IN BLK2INI2>> & & Block2 CLPI2>> I2>>BLK2OUT BLK2OUT Start I2>> & General logic diagram of the phase unbalance element - 46 all-F46.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 58 Note 2 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section Note 3 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND MONITORING section NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 59 CB OPEN CB CLOSED CB OPEN 0.1 s 2CLP> Output t 2CLP>> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Phase unbalance current (46) - first element logic diagram (I2>) Fun_46_S1.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 60 >> Block2 OUT F-IE ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Logic diagram concerning the first threshold (I2>) of the phase balance element - 46 46S1_BL-diagram.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 61 CB OPEN CB CLOSED CB OPEN 0.1 s 2CLP> Output t 2CLP>> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Phase unbalance current (46) - second element logic diagram (I2>>) Fun_46_S2.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 62 >> Block2 OUT F-IE ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Logic diagram concerning the second threshold (I2>>) of the phase balance element - 46 46S2_BL-diagram.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 63: Neutral Unbalance Current - 46N

    General operation time characteristic for the neutral unbalance elements - 46N t-int-F46N.ai t-int-F46N.ai For all inverse time characteristics, following data applies: • Asymptotic reference value (minimum pickup value): 1.1 I > FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 64 Note 1 When the input value is more than 20 times the set point , the operate time is limited to the value corresponding to 20 times the set point NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 65 Note 2 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section Note 3 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND MONITORING section FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 66 CB OPEN CB CLOSED CB OPEN 0.1 s NCLP> Output t NCLP> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Neutral unbalance current (46N) - Alarm element logic diagram (IN> 46NAL.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 67 CB OPEN CB CLOSED CB OPEN 0.1 s NCLP> Output t NCLP> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Neutral unbalance current (46N) - First element logic diagram (IN>) 46NS1.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 68 >> Block2 OUT F-IE ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Neutral unbalance (46N) - Logic diagram of the blocking signals concerning the first element (IN>) 46NS1_BL-diagram.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 69 CB OPEN CB CLOSED CB OPEN 0.1 s NCLP>> Output t NCLP>> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Neutral unbalance current (46N) - Second element logic diagram (IN>>) 46NS2.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 70 >> Block2 OUT F-IE ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Neutral unbalance (46N) - Logic diagram of the blocking signals concerning the second element (IN>>) 46NS2_BL-diagram.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 71: Thermal Image - 49

    Note 1 Assuming that the secondary rated current of the line CT’s equals the rated current of the NA20 relay, as usually happens, the IB value is the ratio between the rated current of the protected component (line, transformer,...) and the primary rated current of the CT’s. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 72 Note 3 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 73 Note 1 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section Note 2 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND MONITORING section FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 74 CB CLOSED CB OPEN 0.1 s DthCLP Output t DthCLP HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Thermal image (49) - Logic diagram of the first alarm threshold Fun_49_AL1.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 75 >> Block2 OUT ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Thermal image (49) - Logic diagram of the blocking signals concerning the first alarm element 49AL1_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 76 CB CLOSED CB OPEN 0.1 s DthCLP Output t DthCLP HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Thermal image (49) - Logic diagram of the second alarm threshold Fun_49_AL2.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 77 >> Block2 OUT ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Thermal image (49) - Logic diagram of the blocking signals concerning the second alarm element 49AL2_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 78 CB OPEN CB CLOSED CB OPEN 0.1 s DthCLP Output t DthCLP HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Thermal image (49) - Logic diagram of the trip threshold Fun_49_Dth.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 79 >> Block2 OUT F-IE ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Thermal image (49) - Logic diagram of the blocking signals concerning the trip element 49_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 80 [s] 10000 1000 0 .0 0 .6 0 .8 1 .0 0.01 7 8 9 10 Operating characteristic concerning the thermal image element (49) - T=1 min F_49-1min-Char.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 81 [s] 100000 10000 1000 0 .0 0 .6 0 .8 1 .0 7 8 9 10 Operating characteristic concerning the thermal image element (49) - T = 200 min F_49-200min-Char.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 82: Phase Overcurrent - 50/51 Rms

    Note 1 When the input value is more than 20 times the set point , the operate time is limited to the value corresponding to 20 times the set point NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 83 Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu. Note 2 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 84 IE-L e/o BLK2OUT-IE-L) must be select inside the Set \ Profi le A(or B) \ Selective block-BLOCK2 \ Selective block OUT menu. Note 1 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND MONITORING section NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 85 CB OPEN CB CLOSED CB OPEN 0.1 s CLP> Output t CLP> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Phase overcurrent (50/51 RMS) - Alarm element logic diagram (I> Fun_50-51AL.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 86 CB OPEN CB CLOSED CB OPEN 0.1 s CLP> Output t CLP> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Phase overcurrent (50/51 RMS) - First element logic diagram (I>) Fun_50-51S1.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 87 >> Block2 OUT ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Phase overcurrent (50/51 RMS) - Logic diagram of the blocking signals concerning the first element (I>) 50-51S1_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 88 > = 0.1 s > = 1.0 s > = 10 s > = 60 s 0.01 /I>inv 9 10 Operating characteristic concerning the Phase overcurrent RMS element (50/51 RMS) F_51RMS-Capacitor-Char.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 89: Phase Overcurrent - 50/51 Fundamental

    BF parameters are set to ON. The parameters are available inside the Set \ Profi le A(or B) \ Phase overcurrent-50/51 Fundamental \ I>> Element (I>>> Element) \ Setpoints menus. Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 90 General logic diagram of the phase overcurrent elements - 50/51 Fundamental all-F50-51F.ai Note 1 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 91 All the named parameters can be set separately for Profi le A and Profi le B menus. Note 1 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND MONITORING section FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 92 CB CLOSED CB OPEN 0.1 s CLP>> Output t > > HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Phase overcurrent (50/51 Fundamental) - Second element logic diagram (I>>) Fun_50-51FS2.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 93 >> Block2 OUT F-IE ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Phase overcurrent (50/51 Fundamental) - Logic diagram of the blocking signals concerning the second element (I>>) 50-51FS2_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 94 CB CLOSED CB OPEN 0.1 s CLP>>> Output t > > HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Phase overcurrent (50/51 Fundamental) - Third element logic diagram (I>>>) Fun_50-51FS3.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 95 >> Block2 OUT ≥1 BLOUT1 >>> Block2 OUT Pilot wire output ST-IE BLK2 Block2 output Phase overcurrent (50/51 Fundamental) - Logic diagram of the blocking signals concerning the third element (I>>>) 50-51FS3_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 96: Residual Overcurrent - 50N/51N

    Set \ Profi le A(or B) \ Residual overcurrent-50N/51N \ IE>> Element (IE>>> Element) \ Setpoints Note 1 When the input value is more than 20 times the set point , the operate time is limited to the value corresponding to 20 times the set point NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 97 Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu. Note 2 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 98 \ Selective block OUT menu. Note 1 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND MONITORING section NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 99 & & Block1 IE>>>BF IE>>>BF & Trip IE>>> Start IE>>> IE>>>BLK2IN BLK2INIE>>> & & Block2 IE>>>BLK2OUT BLK2OUT Start IE>>> & General logic diagram of the residual overcurrent elements - 50N/51N all-F50N-51N.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 100 CB OPEN CB CLOSED CB OPEN 0.1 s ECLP> Output t ECLP> HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Residual overcurrent (50N/51N) - First element logic diagram (IE>) Fun_50N-51NS1.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 101 D = ON IE Block2 output F-IE IE>BLK2OUT BLOUT1 (ON≡Enable) Pilot wire output ST-IE BLK2 Block2 output Residual overcurrent (50N/51N) - Logic diagram of the blocking signals concerning the first element (IE>) 50N-51NS1_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 102 CB CLOSED CB OPEN 0.1 s ECLP>> Output t > ECLP > HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Residual overcurrent (50N/51N) - Second element logic diagram (IE>>) Fun_50N-51NS2.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 103 BLOUT1 Block2 output >>> Block2 OUT Pilot wire output IE>>BLK2OUT (ON≡Enable) ST-IE BLK2 Block2 output Residual overcurrent (50N/51N) - Logic diagram of the blocking signals concerning the second element (IE>>) 50N-51NS2_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 104 CB CLOSED CB OPEN 0.1 s ECLP>>> Output t >> ECLP > HIGH THRESHOLD/ LOW THRESHOLD/ HIGH THRESHOLD/ BLOCK UNBLOCK BLOCK Residual overcurrent (50N/51N) - Third element logic diagram (IE>>>) Fun_50N-51NS3.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 105 >>> Block2 OUT Pilot wire output & Block2 output IE>>>BLK2OUT ST-IE BLK2 (ON≡Enable) Block2 output Residual overcurrent (50N/51N) - Logic diagram of the blocking signals concerning the third element (IE>>>) 50N-51NS3_BL-diagram.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 106: Overvoltage - 59

    The parameters are available inside the Set \ Profi le A(or B) \ Overvoltage - 59 \ U> Element (U>> Element) \ Setpoints menus. Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 107 Set \ Inputs \ Binary input IN1(x) menus (IN1 or INx matching). Note 1 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR- ING section. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 108 Block1 n.o. Binary input INx Trip U>> U>> BF towards BF logic & BF Enable (ON≡Enable) U>>BF Logic diagram concerning the second threshold (U>>) of the overvoltage element - 59 Fun-F59_S2.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 109 U /U >inv 0.01 Note: match of operating and setting time takes place when U/U> = 1.5 Inverse time operating characteristic concerning the first threshold (U>) of the overvoltage element - 59 F_59-Char.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 110: Breaker Failure - Bf

    (52nd or 52b ) may suffi ce Note 2 The exhaustive treatment of the logic block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITORING section NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 111 BLK1 BF & Block1 Logic INx t INx t n.c. INx t Block1 input (ON≡Block) INx t Block1 n.o. Binary input INx Logic diagram concerning the breaker failure element -BF Fun-BF_Pro-n.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 112: Control And Monitoring

    Note 1 In the following treatment, the logical block is defi ned as “Logical block” or “Block1” Note 2 The Block 1 signal forces a timer reset NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 113 50N-51N1 element 59 element U>BLK1 U>>BLK1 59 element 74TCSBLK1 74TCS element BFBLK1 BF element S<BLK1 74CT element Block1 info Block1 (internal state) Block1_L.ai Logic diagram concerning the logic block element -Block1 FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 114: Selective Block -Block2

    When a binary input is programmed for selective block input, the IN1 tON, INx tON, IN1 tOFF and INx tOFF time delays must be reset to zero; the Logic parameters (ON/OFF) must be programmed in the same way of the related output relay connected with-it. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 115 Note 1 In the absence of suitable provisions, a short circuit on a pilot wire causes the block of the receiving relay, so a possible fault (contemporary or following) inside the protected zone, cannot be cleared that being the case the protective relay blocked. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 116 (the selectivity will be lost). Start xx (internal elements) BLK2OUT-Iph BLK2OUT-IE BLK2OUT-Iph/IE F-IPh, F-IE, F-IPh/IE F-IPh, F-IE, F-IPh/IE tF timers TF-timer.ai NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 117 Note 1 Full diagnostic of pilot wires is only available when committed pilot wire input/outputs are employed Note 2 When several outputs are parallel linked the pulse emission must be enabled inside one device only, sooner inside the outermost device FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 118 >> = 0.100 s • I>>BLK2IN = ON • I>>BLK2OUT = ON • PulseBLIN1 = 1 s • PulseBLOUT1 = OFF • = 0.25 s F-IPh • = 0.30 s B-IPh NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 119: Remote Tripping

    Remote trip Remote trip INx t O F F Logic INx t O N Remote trip n.c. RemTrip-K INx t INx t n.o. RemTrip-L Binary input INx Remote tripping logic diagram Fun-Remote-trip.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 120: Frequency Tracking

    0.25 I - 1.5% E Locked frequency (Displayed value) 60 Hz (0 Hz) f (Hz) Frequency tracking IF.ai All protective elements are always operative; accuracy is guaranteed inside locked frequency band. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 121: Cold Load Pickup - Clp

    \Profi le A(or B) \ Phase overcurrent - 50/51 RMS\ I> Element \ Defi nite time menu. CB position can be acquired by means one or two binary inputs; allocation of 52a and 52b func- tions is available inside the Set \ Inputs \ Binary inputx menu. FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 122: Ct Supervision - 74Ct

    CT supervision - 74CT Preface The CT monitoring function is employed to issue an alarm when secondary phase CTs and/or phase input of the NC20 relay failure are detected. Interruptions are detected by means of a symmetry criterion of the I input currents.

  • Page 123: Trip Circuit Supervision - 74Tcs

    (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITORING section Note 2 Following assumption are considered for the framework: Logic: ON, Timers t and t reset to zero OFF: TRIP contact of the protection: DE-energized, No latched FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 124 Outputs are reset to zero after 6 s from the TRIP contact open. Note 1 The trip contact (TRIP) of the protection relays must be set with automatic reset (No-latched operating mode). NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 125 ) / 2 = (103.7 + 30425) / 2 = 15264 Ω ~ 15 k Ω (Power dissipated by the R resistor) = U /R = 110 / 15000 = 0.8 W FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 126: Circuit Breaker Supervision

    (tbreak>) is exceeded, an output relay and/or LED can be activated. The four criteria can be contemporaneously or separately set. All the named parameters are available inside the Set \ Circuit Breaker supervision \ CB Diagnostic menu. NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...
  • Page 127 SumIL1^2t SumIL2^2t SumIL3^2t CB Diagnostic - Cumulative tripping energy I2t Mode-tOpen State tbreak Ktrig-break break tbreak-K & tbreak-L ≥ From CB position Opening transition CB Diagnostic - CB operating time Fun-CB-diagnostic.ai FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...
  • Page 128 Selection of setting profi les • Remote trip • Include I / O in the programmable logic (PLC) • etc. .. Note 1 For a detailed description please refer to the application notes NC20 - Manual - 01 - 2015 FUNCTION CHARACTERISTICS...

  • Page 129: Demand Measures

    Nota 1 The 26 menu is available when the MPT module is enabled Nota 2 The output relay K7...K10 and binary input IN3...IN42 states is meaningful when the I/O circuits are present (MRI and MID16 modules) FUNCTION CHARACTERISTICS NC20 - Manual - 01 - 2015...

  • Page 130: Measures, Logic States And Counters

    • Close CB ON/OFF • Thermal image presetting ON/OFF • Remote trip ON/OFF • MCB VT OPEN ON/OFF • Reset TDcnt counter ON/OFF • Reset discharge timer tD NC20 - Manual - 01 - 2015 MEASURES, LOGIC STATES AND COUNTERS...

  • Page 131: Relays

    PLC I/O assigned not-matching PLC I/O assigned not-matching run-time major OK/NOT OK • PLC I/O assigned not-matching run-time minor OK/NOT OK • • Total PLC I/O assigned not-matching MEASURES, LOGIC STATES AND COUNTERS NC20 - Manual - 01 - 2015...

  • Page 132: Pilot Wire Diagnostic

    Note 2 Data are stored in non volatile memory; they are held in spite of power down Note 3 Counter is updated at any new record; it may be cleared by means ThySetter NC20 - Manual - 01 - 2015 MEASURES, LOGIC STATES AND COUNTERS...

  • Page 133: Event Recording - Ser

    Note 2 Counter is updated at any new record; it may be cleared by means ThySetter Note 3 Data are stored into non-volatile memory; they are retained once power is turned off. MEASURES, LOGIC STATES AND COUNTERS NC20 - Manual - 01 - 2015...
  • Page 134 (34 + 20 · 8 + 9 · 4 + 2) · (0.50 + 0.50) (34 + 20 · 8 + 9 · 4 + 2) · (0.50 + 0.50) Phase/to/phase fault record thysetter37a.ai NC20 - Manual - 01 - 2015 MEASURES, LOGIC STATES AND COUNTERS...

  • Page 135: Installation

    N.4 holes ø 3,5 N.4 holes ø 3,5 Flush-mount.ai Flush-mount.ai Flush mounting Flush mounting Separation of fixed and removable parts is NOT required Separation of fixed and removable parts is NOT required NOTE NOTE INSTALLATION NC20 - Manual - 01 - 2015...
  • Page 136 START START TRIP TRIP Projecting mounting Projecting mounting Projecting.ai Projecting.ai NC20 - Manual - 01 - 2015 INSTALLATION...
  • Page 137 N.4 holes ø 4,5 N.4 holes ø 4,5 Separate operator panel Separate operator panel Separate-mount.ai Separate-mount.ai A standard direct shielded cable with RJ45 connectors must be used for connections. Separate operator panel Separate-mount1.ai INSTALLATION NC20 - Manual - 01 - 2015...
  • Page 138 Rack mounting Rack mounting Rack-mount.ai Rack-mount.ai To allow opening of the keyboard door a one unit space must be provided when several rack are overlapping mounted. Rack mounting Rack mounting Rack-mount1.ai Rack-mount1.ai NC20 - Manual - 01 - 2015 INSTALLATION...

  • Page 139: Electrical Connections

    Devices must be installed by qualified personnel only. CAUTION CAUTION No liability is accepted from Thytronic due to improper use. No liability is accepted from Thytronic due to improper use. For the A1...A22 connections, screw terminals with following characteristics are available: •...
  • Page 140 When making the current connections, attention must be paid to not exceeding the performance of the line current transformers. To be exact, the total load, constituted by the NC20 protective relay, any other protective relays or measuring instruments and the resistance of the connections, must not exceed the line CT performance.
  • Page 141 RS232 port The link from PC and NC20 serial port must be established by means a L10041 cable provided by Thytronic. The RS232 port takes priority over other communication links (Ethernet or RS485 port. USB-RS232 converter USB-RS232 converter Female connector...
  • Page 142 It is recommended to terminate the line at the extremities of the same; this must be performed on the RS485 line control unit and on the NC20 device placed at the furthest point connecting the specially provided resistor; termination can be made by means a jumper between the F2-F3 terminals.
  • Page 143 MODULO INGRESSI REMOTI MID-16 MID-16 IN12 IN12 IN13 IN13 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 IN14 IN14 IN15 IN15 IN16 IN16 INSTALLATION NC20 - Manual - 01 - 2015...
  • Page 144 One MRI module, two MID16 modules, one MPT module, one MCI module and one MMI module (separate operator panel) can be connect at the same time to the Thybus port (maximum expansion). NC20 - Manual - 01 - 2015 INSTALLATION...
  • Page 145 Example for accelerated protection system with joint use of binary input and pilot wire links Block-misto.ai Block-misto.ai Nota 1 All diagram must be considered just as example; they cannot be comprehensive for real applications. INSTALLATION NC20 - Manual - 01 - 2015...

  • Page 146: Nominal Current I N And I En Setting

    Remove the upper tile and open the little door over the keyboard to access the four fastening screws. Removing tie to access the fastening screws Removing tie to access the fastening screws Remove-tile.ai Remove-tile.ai NC20 - Manual - 01 - 2015 INSTALLATION...
  • Page 147 Unmounting of the case from the switchboard is not needed. Unmounting Unmounting set-in.ai set-in.ai • Split the MMI module and disconnect cable Split MMI module from fixed module Split MMI module from fixed module Split-MMI.ai Split-MMI.ai INSTALLATION NC20 - Manual - 01 - 2015...
  • Page 148 - eliminate any potential differences between the human body and the device by touching the metallic case, - avoid touching the printed circuit and connections (tracks, component terminals), - avoid handing the device to others, - set the programming DIPs by using antistatic tools. NC20 - Manual - 01 - 2015 INSTALLATION...
  • Page 149 Dip-switch setting inside the CPU board Dip-switch setting inside the CPU board set-in.ai set-in.ai • Reassemble all parts with the previous operations in reverse order. • Reconnect the RS485 and RJ45 cables (Ethernet and/or Thybus). INSTALLATION NC20 - Manual - 01 - 2015...

  • Page 150: Led Allocation

    The auxiliary voltage in the panel falls within the operative range of PRO_N relays. • The rated current (1 A or 5 A) of the line CT’s corresponds to the setting of PRO_N relays. • All wirings are correct. • All screws are tightly screwed. NC20 - Manual - 01 - 2015 INSTALLATION...

  • Page 151: Programming And Settings

    The ThySetter sw is a “browser” of data (setting, measure, etc..); it implements an engine that is afford to rebuild the menu set up and the relationships to data concerning all Thytronic protective relays by means of XML fi les.

  • Page 152: Mmi (Man Machine Interface)

    >>” “SELF-TEST >>” “PILOT WIRE DIAGNOSTIC >>” “SELECTIVE BLOCK BLOCK2 >>” “INTERNAL SELECTIVE BLOCK BLOCK4>>” Note 1 Setting changes are enabled when the Enabling setting by MMI parameter is set NC20 - Manual - 01 - 2015 SETTING AND COMMISSIONING...

  • Page 153: Setting Modifying (Set)

    The abort command may be used to abandon changes (prior to use of the ENTER: YES); the same effect is achieved by removing the auxiliary power supply to the NC20 relay. As example, to set the operating mode of the K1 output relay as ENERGIZED, LATCHED, the following procedure must be issued: •...

  • Page 154: Test

    The committed output relays must be enabled inside the Circuit Breaker supervision \ LEDs-relays allocation menu. Note 1 Instantly all the relays are switched in rest state, including relays programmed as “normally energized” NC20 - Manual - 01 - 2015 SETTING AND COMMISSIONING...

  • Page 155: Enable / Block Changes Via Keyboard - Password

    - OFF = keyboard enabled only for reading - By password = keyboard enabled for reading and setting by means of password - ON = keyboard enabled for reading and setting without password SETTING AND COMMISSIONING NC20 - Manual - 01 - 2015...
  • Page 156 The device serial number should be set to avoid IP address conflicts for devices connected to the Ethernet network. Ethernet network. Following the Set default settings command the password is reset to 0000. NC20 - Manual - 01 - 2015 SETTING AND COMMISSIONING...

  • Page 157: Menu Tree

    State SumI^2t State tbreak SumIL1 0 In SumIL2 0 In PROCEED READ MENU’ SumIL3 0 In SumIL1^2t 0 In^2s Binary SumIL2^2t 0 In^2s DELAYED INPUTS SumIL3^2t 0 In^2s Binary NC20_menu1.ai SETTING AND COMMISSIONING NC20 - Manual - 01 - 2015...
  • Page 158 TotBk1U>cnt TotTrIE>>>cnt run-time TotStU>>cnt TotBk1IE>>>cnt TotRtU>>cnt TotBk2IE>>>cnt Ram: TotBk1U>>cnt boot TotTr74TCScnt run-time TotBk1-74TCScnt Oscillography: N.OpenCBcnt run-time TotTr74CTcnt MMI-board: TotBk1-74CTcnt TotStBFcnt boot TotTrTrcnt run-time TotBk1BFcnt Program: PROCEED READ MENU’ NC20_menu2.ai NC20 - Manual - 01 - 2015 SETTING AND COMMISSIONING...
  • Page 159 Time: ..: ..: Relay OUT: Event0 (last): IN1 on Date Time Event1: IN1 on EVENTS RECORDING Date Eventxx: Time Settings Date Event19: Time Settings Date Time PROCEED SET MENU’ NC20_menu3.ai SETTING AND COMMISSIONING NC20 - Manual - 01 - 2015...
  • Page 160 I2CLP>>def LEDs I2> t2>>def I2>ST-L I2>>BLK1 I2> Element I2>TR-L I2>>BLK2IN I2>> Element I2>>BLK2OUT I2>>BF Relays I2>> I2>>ST-K I2>>TR-K LEDs I2>> I2>>ST-L I2>>TR-L PROCEED SET MENU’ PROCEED PROFILE A MENU’ NC20_menuset1.ai NC20 - Manual - 01 - 2015 SETTING AND COMMISSIONING...
  • Page 161 I>>>BLK1 I>>TR-L I>>>BLK2IN I>> Element 50/51 Fundamental I>>>BLK2OUT I>>> Element I>>>BF I>ALdisbyI>>> I>disbyI>>> I>>disbyI>>> Relays I>>> I>>>ST-K I>>>TR-K LEDs I>>> I>>>ST-L I>>>TR-L PROCEED SET MENU’ PROCEED PROFILE A MENU’ NC20_menuset2.ai SETTING AND COMMISSIONING NC20 - Manual - 01 - 2015...
  • Page 162 BLOCK2 INPUT Relays BLOCK2IN tF-IE tB-K tF-Iph/IE LEDs BLOCK2IN BLOCK2 Relays BLOCK2OUT tB-L BLK2OUT-IPh-K BLOCK2 OUTPUT BLK2OUT-IE-K BLK2OUT-IPh/IE-K- LEDs BLOCK2OUT BLK2OUT-IPh-L BLK2OUT-IE-L BLK2OUT-IPh/IE-L- PROCEED SET MENU’ PROCEED PROFILE A MENU’ NC20_menuset3.ai NC20 - Manual - 01 - 2015 SETTING AND COMMISSIONING...
  • Page 163 NTP Synch. Test state: Stop test? >> Start test? >> Test K1 >> Test K2 >> TEST Test K3 >> Test K4 >> Test K5 >> Test K6 >> NA60_menuset5.ai SETTING AND COMMISSIONING NC20 - Manual - 01 - 2015...

  • Page 164: Modules Management

    IN14...IN29 with one MID16 module IN30...IN45 with two MID16 modules Output relays K1...K6 on board K7...K10 with MRI module LEDs: ON, START, TRIP, L1...L5 on board L6...L10 with MRI module NC20 - Manual - 01 - 2015 SETTING AND COMMISSIONING...

  • Page 165: Appendix

    Nota 3 With setting more than 2.5 In for the 50/51 elements and 0.5 IEn for the 50N/51N elements, the upper limit of the measuring range is limited to 50 In and 10 IEn respectively. APPENDIX NC20 - Manual - 01 - 2015...

  • Page 166: Neutral Unbalance Current 46N - Standard Inverse Time Curve (Iec 60255-3/Bs142 Type A)

    > 0.5 s > 0.2 s > 0.1 s > 0.02 s 0.01 >inv 7 8 9 10 > Note: match of operating and setting time takes place when = 700 F_46N-IECA-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 167: Neutral Unbalance Current 46N - Very Inverse Time Curve (Iec 60255-3/Bs142 Type B)

    > 0.5 s t> 0.1 s > 0.2 s t> 0.02 s 0.01 > 7 8 9 10 > Note: match of operating and setting time takes place when = 14.5 F_46N-IECB-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 168: Neutral Unbalance Current 46N -Extremely Inverse Time Curve (Iec 60255-3/Bs142 Type C)

    = 0.02 s t> = 0.1 s t> = 0.2 s t> = 0.5 s > 0.01 7 8 9 10 > Note: match of operating and setting time takes place when F_51-IECC-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 169: Phase Overcurrent 50/51 Rms - Standard Inverse Time Curve (Iec 60255-3/Bs142 Type A)

    0.5 s t> 0.2 s t> 0.1 s t> 0.02 s 0.01 /I>inv 7 8 9 10 Note: match of operating and setting time takes place when I /I> = 700 F_51-IECA-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 170: Phase Overcurrent 50/51 Rms - Very Inverse Time Curve (Iec 60255-3/Bs142 Type B)

    0.5 s t> 0.1 s t> 0.2 s t> 0.02 s 0.01 /I> 7 8 9 10 /I> Note: match of operating and setting time takes place when = 14.5 F_51-IECB-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 171: Phase Overcurrent 50/51 Rms - Extremely Inverse Time Curve (Iec 60255-3/Bs142 Type C)

    = 0.02 s t> = 0.1 s t> = 0.2 s t> = 0.5 s /I> 0.01 7 8 9 10 /I> Note: match of operating and setting time takes place when F_51-IECC-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 172: Residual Overcurrent 50N/51N - Standard Inverse Time Curve (Iec 60255-3/Bs142 Type A)

    0.5 s E>inv 0.2 s E>inv 0.1 s E>inv 0.02 s E>inv 0.01 >inv 7 8 9 10 Note: match of operating and setting time takes place when I > = 700 F_51N-IECA-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 173: Residual Overcurrent 50N/51N - Very Inverse Time Curve (Iec 60255-3/Bs142 Type B)

    = 0.1 s E>inv 0.2 s E>inv = 0.02 s E>inv 0.01 >inv 7 8 9 10 Note: match of operating and setting time takes place when I > = 14.5 F_51N-IECB-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 174: Residual Overcurrent 50N/51N - Extremely Inverse Time Curve (Iec 60255-3/Bs142 Type C)

    = 0.02 s E> = 0.1 s E> = 0.2 s E> = 0.5 s 0.01 >inv 7 8 9 10 Note: match of operating and setting time takes place when I > F_51-IECC-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 175: Appendix A2 - Inverse Time Ansi/Ieee Curves

    Nota 3 With setting more than 2.5 In for the 50/51 elements and 0.5 IEn for the 50N/51N elements, the upper limit of the measuring range is limited to 50 In and 10 IEn respectively. APPENDIX NC20 - Manual - 01 - 2015...

  • Page 176: Neutral Unbalance Current 46N - Moderately Inverse Time Curve (Ansi/Ieee Type Mi)

    = 0.5 s t> = 0.2 s t> = 0.02 s 0.01 > 7 8 9 10 > Note: match of operating and setting time takes place when = 1.664 F_46N-ANSIMI-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 177: Neutral Unbalance Current 46N - Very Inverse Time Curve (Ansi/Ieee Type Vi)

    = 0.1 s t> = 0.2 s t> = 0.5 s > 0.01 > 7 8 9 10 > Note: match of operating and setting time takes place when = 2.306 F_46N-ANSIVI-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 178: Neutral Unbalance Current 46N - Extremely Inverse Time Curve (Ansi/Ieee Type Ei)

    = 0.2 s t> = 0.5 s > t> = 1 s 0.01 > 7 8 9 10 > Note: match of operating and setting time takes place when = 2.789 F_46N-ANSIEI-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 179: Phase Overcurrent 50/51 Rms - Moderately Inverse Time Curve (Ansi/Ieee Type Mi)

    = 0.5 s t> = 0.2 s t> = 0.02 s 0.01 /I> 7 8 9 10 /I> Note: match of operating and setting time takes place when = 1.664 F_51-ANSIMI-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 180: Phase Overcurrent 50/51 Rms - Very Inverse Time Curve (Ansi/Ieee Type Vi)

    = 0.1 s t> = 0.2 s t> = 0.5 s t> 0.01 /I> 7 8 9 10 /I> Note: match of operating and setting time takes place when = 2.306 F_51-ANSIVI-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 181: Phase Overcurrent 50/51 Rms - Extremely Inverse Time Curve (Ansi/Ieee Type Ei)

    = 0.2 s t> = 0.5 s t> t> = 1 s 0.01 /I> 7 8 9 10 /I> Note: match of operating and setting time takes place when = 2.789 F_51-ANSIEI-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 182: Residual Overcurrent 50N/51N - Moderately Inverse Time Curve (Ansi/Ieee Type Mi)

    = 0.5 s > = 0.2 s > = 0.02 s 0.01 >inv 7 8 9 10 Note: match of operating and setting time takes place when I > = 1.664 F_51N-ANSIMI-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 183: Residual Overcurrent 50N/51N - Very Inverse Time Curve (Ansi/Ieee Type Vi)

    = 0.1 s > = 0.2 s > = 0.5 s > 0.01 >inv 7 8 9 10 Note: match of operating and setting time takes place when I > = 2.306 F_51N-ANSIVI-Char.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 184: Residual Overcurrent 50N/51N - Extremely Inverse Time Curve (Ansi/Ieee Type Ei)

    = 0.2 s > = 0.5 s > > = 1 s 0.01 >inv 7 8 9 10 Note: match of operating and setting time takes place when I > = 2.789 F_51N-ANSIEI-Char.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 185: Appendix B1 - I/O Diagram

    APPENDIX B1 - I/O Diagram NC20 ≅ BLOUT- BLOUT+ FRONT PANEL NC20-I-O.ai APPENDIX NC20 - Manual - 01 - 2015...

  • Page 186: Appendix B2 - Interfaces

    OUTPUT INPUT MODULO 4 RELE’ + 8 INGRESSI DIGITALI MID8 MODULO INGRESSI REMOTI 4 RELAYS + 8 BINARY INPUTS MODULE 1 2 3 4 5 6 7 8 9 FRONT PANEL Interfaces.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 187: Appendix B3- Connection Diagrams

    All diagram must be considered just as example; they cannot be comprehensive for real applications. For all diagrams the output contacts are shown in de-energized state for standard reference. NC20 50/51 50/51(RMS) 50N/51N 74CT 50BF CB position Three phase CTs NC20-sch1.ai APPENDIX NC20 - Manual - 01 - 2015...
  • Page 188 NC20 50/51 50/51(RMS) 74CT 50BF CB position Two phase CTs NC20-sch2.ai NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 189: Appendix C - Dimensions

    SEPARATE PROJECTING MOUNTING PROJECTING MOUNTING (Separate operator panel) (Stand alone) OPERATOR PANEL RACK MOUNTING FLUSH MOUNTING CUTOUT 482.6 102.5 ±0.3 START START START START TRIP TRIP TRIP TRIP N.4 holes ø 3.5 APPENDIX NC20 - Manual - 01 - 2015...

  • Page 190: Appendix D - Setting Table

    Remote trip | Reset on demand measures | Reset TDcnt | Reset tD | None Relays Logic De-energized | Energized Operation MODE No-latched | Pulse | Latched Minimum pulse width 0 ... 500 step = 5 NC20 - Manual - 01 - 2015 APPENDIX...
  • Page 191 0-5 mA | 0-20 mA | 4-20 mA Loop 2 Output type Loop2-Type Unipolar | Bipolar Loop 2 Nominal multiplier Loop2-M 0.01 ... 100.00 step = 0.01 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 192 OFF | ON 26 PT2 Alarm threshold ThAL2 0 ... 200 step = 1 ThAL2 Operating time Value 0 ... 100 step = 1 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 193 0 ... 100 step = 1 ThAL5 Alarm relays ThAL5-K K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 194 START | TRIP | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | ThAL8 Alarm LEDs ThAL8-L L9 | L10 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 195 L9 | L10 Defi nite time 27 Second threshold defi nite time State OFF | ON Pickup value 0.05 ... 1.10 step = 0.01 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 196 0.00 ... 9.99 step = 0.01 Value 10.0 ... 100.0 step = 0.1 I2> Logical block I2>BLK1 OFF | ON I2> Input selective block I2>BLK2IN OFF | ON NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 197 K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 IN>AL Trip relays IN>ALTR-K K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 198 0.00 ... 9.99 step = 0.01 Value 10.0 ... 100.0 step = 0.1 IN>> Logical block IN>>BLK1 OFF | ON IN>> Input selective block IN>>BLK2IN OFF | ON NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 199 OFF | ON Dth> Input selective block Dth>BLK2IN OFF | ON Dth> Output selective block Dth>BLK2OUT OFF | ON Dth> Breaker failure Dth>BF OFF | ON APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 200 START | TRIP | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | I> Trip LEDs I>TR-L L9 | L10 Defi nite time 50/51 First threshold defi nite time State OFF | ON NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 201 OFF | ON - Element blocking | ON - Change setting ICLP>>> Activation time 0.00 ... 9.99 step = 0.01 Value 10.0 ... 100.0 step = 0.1 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 202 Pickup value 1.00 ... 10.00 step = 0.01 0.100 ... 0.999 step = 0.001 IE>def within CLP IECLP>def 1.00 ... 10.00 step = 0.01 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 203 10.0 ... 100.0 step = 0.1 IE>>> Logical block IE>>>BLK1 OFF | ON IE>>> Input selective block IE>>>BLK2IN OFF | ON IE>>> Output selective block IE>>>BLK2OUT OFF | ON APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 204 K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 U>> Trip relays U>>TR-K K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 205 0.05 ... 1.00 step = 0.01 BF Residual current threshold State OFF | ON Pickup value 0.05 ... 1.00 step = 0.01 BF Time delay APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 206 0 ... 100 step = 1 ThAL3 Alarm relays ThAL3-K K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 207 START | TRIP | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | ThAL6 Alarm LEDs ThAL6-L L9 | L10 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 208 27 Operating logic Logic27 OR | AND U< Element Setpoints U< Enable U< Enable OFF | ON U< Curve type U<Curve INVERSE | DEFINITE NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 209 0.05 ... 1.00 step = 0.01 I<def Operating time 0.04 ... 9.99 step = 0.01 Value 10.0 ... 99.9 step = 0.1 100 ... 200 step = 1 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 210 I2>> Element Setpoints I2>> Enable I2>> Enable OFF | ON I2CLP>> Mode I2CLP>> Mode OFF | ON - Element blocking | ON - Change setting NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 211 ANSI/IEEE VI | ANSI/IEEE EI | DEFINITE INCLP> Mode INCLP> Mode OFF | ON - Element blocking | ON - Change setting INCLP> Activation time APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 212 0.01 ... 2.00 step = 0.01 IN>>def Operating time 0.03 ... 9.99 step = 0.01 Value 10.0 ... 50.0 step = 0.1 Thermal image - 49 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 213 START | TRIP | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | I>AL Trip LEDs I>ALTR-L L9 | L10 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 214 I>inv Operating time t>inv 10.0 ... 60.0 step = 0.1 Phase overcurrent - 50/51 Fundamental I>> Element Setpoints I>> Enable I>> Enable OFF | ON NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 215 START | TRIP | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | I>>> Trip LEDs I>>>TR-L L9 | L10 Defi nite time 50/51 Third threshold defi nite time State OFF | ON APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 216 OFF | ON - Element blocking | ON - Change setting IECLP>> Activation time 0.00 ... 9.99 step = 0.01 Value 10.0 ... 100.0 step = 0.1 tE>> Reset time delay NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 217 IE>>>def within CLP IECLP>>>def 1.00 ... 9.99 step = 0.01 10.0 ... 40.0 step = 0.1 IE>>>def Operating time Value 0.03 ... 10.00 step = 0.01 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 218 START | TRIP | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | 74TCS Trip LEDs 74TCS-TR-L L9 | L10 Selective block - BLOCK2 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 219 L9 | L10 Switches Switch 1 0 | 1 Switch 2 0 | 1 Switch 3 0 | 1 Switch 4 0 | 1 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 220 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 221 3600 ... 86400 step = 600 0 ... 59 step = 1 Timer 20 60 ... 3540 step = 60 3600 ... 86400 step = 600 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 222 OFF | ON S< Trip relays S<TR-K K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 223 IL3rms | IL3 | UL3 | IN | PhiN | INC | PhiNC | IEC | I2 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | Off APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...
  • Page 224 Ethernet IP host address IP net mask IP gateway Autonegotiation OFF | ON Enable OFF | ON Type Local Network | Internet | User NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015 APPENDIX APPENDIX...
  • Page 225 Broadcast address Rx port 0 ... 20000 step = 1 Tx port 0 ... 20000 step = 1 TimeToLive(Multicast) 0 ... 20 step = 1 APPENDIX APPENDIX NC20 - Manual - 01 - 2015 NC20 - Manual - 01 - 2015...

  • Page 226: Appendix E - Revisions History

    2.00 2.70 NC20-Manual-01-2015 ThySetter 3.6.11 01-2015 Updated EC declaration of conformity, correct description of 27 and 37 elements, updated sect. 3 (added Level A specification for IEC61850 protocol, EMC and accuracy table) NC20 - Manual - 01 - 2015 APPENDIX...

  • Page 227: Appendix F - Ec Declaration Of Conformity

    Piazza Mistral 7 - 20139 MILANO The undersigned manufacturer herewith declares that the product Protection relay - type NC20 is in conformity with the previsions of the following EC directives (including all applicable amendments) when installed in accordance with the installation instructions: Reference n°...

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