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Functions 2.3 Restricted Earth Fault Protection 142 Figure 2-54 Restricted earth fault protection on an earthed shunt reactor with 2 CT sets (treated like an auto-transformer) Figure 2-55 Restricted earth fault protection on an earthed auto-transformer <strong>SIPROTEC</strong>, 7UT6x, Manual C53000-G1176-C230-2, Release date 06.2012
<strong>SIPROTEC</strong>, 7UT6x, Manual C53000-G1176-C230-2, Release date 06.2012 Functions 2.3 Restricted Earth Fault Protection Figure 2-56 Restricted earth fault protection on a generator or motor with earthed starpoint The restricted earth fault protection can operate on one of the sides of the main protected object (power transformer, generator, motor, reactor) or on a further protected object, according to the topology configured. In case of auto-transformers, it is assigned to the auto-windings. Furthermore, it is presumed that the assignment of the different measuring locations to the sides of the main protected object or to a further protected object as well as the assignment of the 1-phase current input for the starpoint current has been performed correctly according to the Subsection „Topology of the Protected Object“. The 7UT613/63x provides two of the protective functions that can be used independently from each other in different locations. For example you can realise a restricted earth fault protection for each of both windings on a YNyn transformer that is earthed at both starpoints. Or use the first restricted earth fault protection for an earthed winding of a transformer and the second for another protected object, e.g. a neutral reactor. You carried out the assignment of both restricted earth fault protection functions to the sides or measuring locations according the section „Assignment of Protection Functions to Measuring Location/Sides“. 143
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SIPROTEC Differential Protection 7U
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Preface Additional Support Training
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Preface Typographic and Symbol Conv
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Preface 8 SIPROTEC, 7UT6x, Manual C
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Contents 10 2.2 Differential Protec
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Contents 12 2.14 Undervoltage Prote
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Contents 14 2.23 Average Values, Mi
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Contents A Appendix. . . . . . . .
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Introduction 1.1 Overall Operation
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Introduction 1.1 Overall Operation
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Introduction 1.2 Application Scope
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Introduction 1.3 Characteristics Di
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Introduction 1.3 Characteristics Un
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Introduction 1.3 Characteristics Ex
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Introduction 1.3 Characteristics 30
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Functions 2.1 General 2.1 General 3
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Functions 2.1 General 2.1.1.3 Infor
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Functions 2.1 General 2.1.3 Configu
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Functions 2.1 General Differential
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Functions 2.1 General Single-phase
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Functions 2.1 General Undervoltage
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Functions 2.1 General 44 Addr. Para
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Functions 2.1 General 2.1.4 Power S
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Functions 2.1 General 48 Figure 2-2
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Functions 2.1 General 50 Note If yo
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Functions 2.1 General Special Consi
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Functions 2.1 General 54 Current co
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SIPROTEC, 7UT6x, Manual C53000-G117
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Assignment of Voltage Measuring Inp
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Figure 2-9 Power measurement at gen
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Functions 2.1 General 66 The mode o
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Functions 2.1 General Figure 2-12 R
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Functions 2.1 General Current Trans
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Functions 2.1 General 72 Similar ap
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Functions 2.1 General 74 Hereinafte
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Functions 2.1 General 76 Figure 2-1
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Functions 2.1 General 80 As the abo
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Functions 2.1 General 2.1.4.4 Circu
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Page 163 and 164: Figure 2-74 Fast busbar protection
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Page 173 and 174: 2.4.2.3 Information List No. Inform
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Functions 2.6 Dynamic Cold Load Pic
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Functions 2.6 Dynamic Cold Load Pic
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Functions 2.7 Single-Phase Time Ove
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Functions 2.7 Single-Phase Time Ove
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2.8 Unbalanced Load Protection SIPR
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Pickup, Trip Dropout SIPROTEC, 7UT6
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Thermal Stage Pickup, Warning Therm
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Logic SIPROTEC, 7UT6x, Manual C5300
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Example: Machine I N = 483 A SIPROT
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Functions 2.9 Thermal Overload Prot
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Functions 2.9 Thermal Overload Prot
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Functions 2.11 Overexcitation Prote
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Delay and Logic Two delay times are
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Functions 2.13 Forward Power Superv
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Functions 2.14 Undervoltage Protect
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2.15.1 Function Description SIPROTE
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Figure 2-106 Logic diagram of frequ
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2.16.4 Information List No. Informa
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Delay Time and Breaker Failure Trip
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Initiation SIPROTEC, 7UT6x, Manual
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2.18 External Trip Commands 2.18.1
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Functions 2.19 Monitoring Functions
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The following figure shows the logi
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No. Information Type of Information
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Functions 2.20 Protection Function
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Functions 2.20 Protection Function
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Functions 2.21 Disconnection of Mea
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Functions 2.22 Additional Functions
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2.22.4 Differential and Restraining
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2.22.10 Commissioning Aids SIPROTEC
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2.23 Average Values, Minimum and Ma
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2.23.2 Min/Max Measurement Setup 2.
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Functions 2.24 Command Processing C
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Functions 2.24 Command Processing 3
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Mounting and Commissioning 3.1 Moun
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Mounting and Commissioning 3.1 Moun
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RTD-Box SIPROTEC, 7UT6x, Manual C53
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The ratings of the fuse are printed
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Board Arrangement 7UT613/63x SIPROT
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3.1.2.3 Switching Elements on Print
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Processor Module C-CPU-2 SIPROTEC,
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Input/Output Board C-I/O-2 (only 7U
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The input/output board C-I/O-2 carr
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Input/Output Board C-I/O-9 (only 7U
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Table 3-22 Assignment of jumpers fo
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Note SIPROTEC, 7UT6x, Manual C53000
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Table 3-24 Exchange Interface Modul
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RS485 Interface SIPROTEC, 7UT6x, Ma
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3.1.3 Mounting 3.1.3.1 Panel Flush
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3.1.3.2 Rack and Cubicle Mounting S
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Figure 3-25 Installation of a 7UT63
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System interface SIPROTEC, 7UT6x, M
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RTD box SIPROTEC, 7UT6x, Manual C53
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3.3.1 Test Mode / Transmission Bloc
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Structure of the Dialog Box SIPROTE
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Structure of the Dialog Box SIPROTE
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An update is made: Exiting the Proc
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Table 3-30 Indications on matching
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Flexible Functions Current Function
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Mounting and Commissioning 3.3 Comm
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Figure 3-46 Phasor Diagram of the P
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Mounting and Commissioning 3.4 Fina
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Technical Data 4.1 General 4.1 Gene
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Technical Data 4.1 General 4.1.5 Co
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Operating Range Frequency (Transfor
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Operating Times (Generators, Motors
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Operating Time (Busbars, Short Line
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Technical Data 4.4 Time Overcurrent
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Technical Data 4.8 Unbalanced Load
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Technical Data 4.8 Unbalanced Load
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Technical Data 4.11 Overexcitation
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Technical Data 4.20 User-defined Fu
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Technical Data 4.20 User-defined Fu
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Time Synchronisation Commissioning
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4.23.3 Panel Surface Mounting (Encl
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4.23.5 Panel Surface and Cabinet Mo
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4.23.7 RTD box Figure 4-26 Dimensio
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Appendix A This appendix is primari
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Additional Specification L for Furt
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Additional Specification L for Furt
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1) Only in connection with position
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Exchangeable Interface Modules SIPR
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SIMATIC CFC 4 Varistor SIPROTEC, 7U
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7UT613*-*D/E Figure A-2 Overview di
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7UT633*-* D/E Figure A-3 General di
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7UT633*-* P/Q Figure A-4 General di
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7UT635*-* D/E Figure A-5 General di
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7UT635*-* P/Q Figure A-6 General di
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7UT613*-* B Figure A-8 General diag
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7UT633*-* B Figure A-9 General diag
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7UT633*-* N Figure A-10 General dia
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7UT635*-* B Figure A-11 General dia
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7UT635*-* N Figure A-12 General dia
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Figure A-22 Connection example 7UT6
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A.3.2 Voltage Transformer Connectio
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A.3.3 Assignment of Protection Func
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Appendix A.5 Default Settings A.5 D
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Appendix A.5 Default Settings A.5.5
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Appendix A.5 Default Settings A.5.6
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Addr. Parameter Setting Options Def
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A.8 Settings Addresses which have a
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Addr. Parameter Function C Setting
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A.9 Information List SIPROTEC, 7UT6
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No. Description Function Type of In
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Appendix A.9 Information List 640 N
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Literature /1/ SIPROTEC 4 System Ma
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LVU Master Metered value MLFB Modem
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Index A Acknowledgement of commands
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Fault Value Storage Storage Criteri
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P Parameter Group Changeover 36, 97
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Z Zero Current 124 Zero Sequence Cu
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