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Schweitzer Engineering Laboratories SEL-421-4 - Page 9

Schweitzer Engineering Laboratories SEL-421-4
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vii
Date Code 20171021 Instruction Manual SEL-421 Relay
List of Tables
Table 6.9 LOP Enable Options..................................................................................................................6.25
Table 6.10 Tilt Resulting From Nonhomogeneity.......................................................................................6.31
Table 6.11 Options for Enabling Pole-Open Logic .....................................................................................6.37
Table 6.12 Trip Unlatch Options.................................................................................................................6.42
Table 6.13 Settings for 500 kV Parallel TX Example .................................................................................6.47
Table 6.14 System Data—345 kV Tapped Overhead Transmission Line .........................................................6.54
Table 6.15 Secondary Impedances ..............................................................................................................6.55
Table 6.16 LOP Enable Options..................................................................................................................6.60
Table 6.17 Local Zone 2 Fault Impedance Measurements..........................................................................6.62
Table 6.18 Apparent Impedance Measurement for Remote Faults .............................................................6.63
Table 6.19 Options for Enabling Pole-Open Logic .....................................................................................6.77
Table 6.20 Setting TULO Unlatch Trip Options .........................................................................................6.81
Table 6.21 Settings for 345 kV Tapped TX Example .................................................................................6.83
Table 6.22 System Data—230 kV Parallel Underground Cables................................................................6.87
Table 6.23 Secondary Impedances ..............................................................................................................6.88
Table 6.24 LOP Enable Options..................................................................................................................6.93
Table 6.25 Tilt Resulting From Nonhomogeneity.......................................................................................6.98
Table 6.26 XAG Measurement for Remote AG Fault (k01 = 0.374 –39.2°, Sheath and Ground
Return Path)............................................................................................................................6.101
Table 6.27 XAG Measurement for Remote AG Fault (k01 = 0.385 –46.7°, Sheath Return Path) ........6.101
Table 6.28 XAG Measurement for Remote AG Fault (k0 = 6.105 44.5°, Ground Return Path)...........6.101
Table 6.29 Options for Enabling Pole-Open Logic ...................................................................................6.110
Table 6.30 Setting TULO Unlatch Trip Options .......................................................................................6.113
Table 6.31 Settings for 230 kV Parallel Cables Example .........................................................................6.115
Table 6.32 Positive-Sequence Impedances (Secondary) ...........................................................................6.120
Table 6.33 Automatically Calculated/Hidden Settings .............................................................................6.129
Table 6.34 Relay Configuration (Group)...................................................................................................6.129
Table 6.35 Out-of-Step Tripping/Blocking ...............................................................................................6.130
Table 6.36 Automatically Calculated/Hidden Settings .............................................................................6.136
Table 6.37 Relay Configuration (Group)...................................................................................................6.136
Table 6.38 Out-of-Step Tripping/Blocking ...............................................................................................6.136
Table 6.39 Settings for Autoreclose Example ...........................................................................................6.140
Table 6.40 Settings for Autoreclose and Synchronism Check Example ...................................................6.149
Table 6.41 Secondary Quantities...............................................................................................................6.156
Table 6.42 Settings for Circuit Breaker Failure Example 1 ......................................................................6.160
Table 6.43 Secondary Quantities...............................................................................................................6.162
Table 6.44 Settings for Circuit Breaker Failure Example 2 ......................................................................6.168
Table 6.45 Global Settings ........................................................................................................................6.174
Table 6.46 Breaker Monitor Settings.........................................................................................................6.174
Table 6.47 Group Settings .........................................................................................................................6.175
Table 6.48 Protection Freeform SEL
OGIC Control Equations...................................................................6.176
Table 6.49 Control Inputs..........................................................................................................................6.179
Table 6.50 Control Outputs (SEL
OGIC Control Equations).......................................................................6.179
Table 7.1 MET Command ...........................................................................................................................7.2
Table 7.2 Instantaneous Metering Quantities—Voltages, Currents, Frequency .........................................7.3
Table 7.3 Instantaneous Metering Quantities—Power................................................................................7.4
Table 7.4 Maximum/Minimum Metering Quantities—Voltages, Currents, Frequency, and Powers.........7.5
Table 7.5 Demand and Peak Demand Metering Quantities—LINE ...........................................................7.6
Table 7.6 Energy Metering Quantities—(LINE).........................................................................................7.6
Table 7.7 Event Report Nonvolatile Storage Capability When ERDIG = S ...............................................7.8
Table 7.8 Event Report Nonvolatile Storage Capability When ERDIG = A ..............................................7.8
Table 7.9 Event Report Metered Analog Quantities .................................................................................7.10
Table 7.10 Event Types ...............................................................................................................................7.14
Table 8.1 Global Settings Changes..............................................................................................................8.1
Table 8.2 Global Settings Categories ..........................................................................................................8.2
Table 8.3 General Global Settings...............................................................................................................8.2
Table 8.4 Global Enables.............................................................................................................................8.2
Table 8.5 Station DC1 Monitor (and Station DC2 Monitor).......................................................................8.3

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