Schweitzer Engineering Laboratories SEL-421-4 - Page 10

viii
SEL-421 Relay Instruction Manual Date Code 20171021
List of Tables
Table 8.6 Control Inputs ..............................................................................................................................8.3
Table 8.7 Main Board Control Inputs..........................................................................................................8.3
Table 8.8 Interface Board #1 Control Inputs ...............................................................................................8.4
Table 8.9 Interface Board #2 Control Inputs ...............................................................................................8.4
Table 8.10 Settings Group Selection .............................................................................................................8.5
Table 8.11 Frequency Estimation ..................................................................................................................8.5
Table 8.12 Time-Error Calculation................................................................................................................8.5
Table 8.13 Current and Voltage Source Selection.........................................................................................8.5
Table 8.14 Synchronized Phasor Configuration Settings ..............................................................................8.6
Table 8.15 Phasors Included in the Data .......................................................................................................8.6
Table 8.16 Synchronized Phasor Configuration Settings Part 2....................................................................8.7
Table 8.17 Synchronized Phasor Recorder Settings......................................................................................8.7
Table 8.18 Synchronized Phasor Real Time Control Settings ......................................................................8.8
Table 8.19 Time and Date Management........................................................................................................8.8
Table 8.20 Data Reset Control.......................................................................................................................8.8
Table 8.21 DNP .............................................................................................................................................8.9
Table 8.22 Breaker Monitor Settings Categories ..........................................................................................8.9
Table 8.23 Enables.........................................................................................................................................8.9
Table 8.24 Breaker 1 Inputs...........................................................................................................................8.9
Table 8.25 Breaker 2 Inputs.........................................................................................................................8.10
Table 8.26 Breaker 1 Monitor (and Breaker 2 Monitor) .............................................................................8.10
Table 8.27 Breaker 1 Contact Wear (and Breaker 2 Contact Wear) ...........................................................8.10
Table 8.28 Breaker 1 Electrical Operating Time (and Breaker 2 Electrical Operating Time)....................8.11
Table 8.29 Breaker 1 Mechanical Operating Time (and Breaker 2 Mechanical Operating Time) .............8.11
Table 8.30 Breaker 1 Pole Scatter and Pole Discrepancy (and Breaker 2 Pole Scatter and Pole
Discrepancy).............................................................................................................................8.11
Table 8.31 Breaker 1 Inactivity Time Elapsed (and Breaker 2 Inactivity Time Elapsed)...........................8.11
Table 8.32 Breaker 1 Motor Running Time (and Breaker 2 Motor Running Time)...................................8.11
Table 8.33 Breaker 1 Current Interrupted (and Breaker 2 Current Interrupted)..........................................8.11
Table 8.34 Group Settings Categories .........................................................................................................8.12
Table 8.35 Line Configuration ....................................................................................................................8.13
Table 8.36 Relay Configuration ..................................................................................................................8.13
Table 8.37 Mho Phase-Distance Element Reach.........................................................................................8.15
Table 8.38 Quadrilateral Phase-Distance Element Reach ...........................................................................8.15
Table 8.39 Phase-Distance Element Time Delay ........................................................................................8.16
Table 8.40 Mho Ground-Distance Element Reach......................................................................................8.16
Table 8.41 Quad Ground-Distance Element Reach.....................................................................................8.17
Table 8.42 Zero-Sequence Compensation Factor........................................................................................8.18
Table 8.43 Ground-Distance Element Time Delay .....................................................................................8.18
Table 8.44 Series Compensation .................................................................................................................8.18
Table 8.45 Distance Element Common Time Delay ...................................................................................8.18
Table 8.46 Switch-Onto-Fault Scheme........................................................................................................8.19
Table 8.47 Out-of-Step Tripping/Blocking .................................................................................................8.19
Table 8.48 Load Encroachment...................................................................................................................8.20
Table 8.49 Phase Instantaneous Overcurrent Pickup...................................................................................8.21
Table 8.50 Phase Definite-Time Overcurrent Time Delay..........................................................................8.21
Table 8.51 Phase Instantaneous Definite-Time Overcurrent Torque Control.............................................8.21
Table 8.52 Residual Ground Instantaneous Overcurrent Pickup.................................................................8.22
Table 8.53 Residual Ground Definite-Time Overcurrent Time Delay........................................................8.22
Table 8.54 Residual Ground Instantaneous Definite-Time Overcurrent Torque Control ...........................8.22
Table 8.55 Negative-Sequence Instantaneous Overcurrent Pickup.............................................................8.23
Table 8.56 Negative-Sequence Definite-Time Overcurrent Time Delay....................................................8.23
Table 8.57 Negative-Sequence Instantaneous Definite-Time Overcurrent Torque Control .......................8.23
Table 8.58 Selectable Operating Quantity Inverse Time Overcurrent Element 1 .......................................8.23
Table 8.59 Selectable Operating Quantity Inverse Time Over
current Element 2.......................................8.24
Table 8.60 Selectable Operating Quantity Inverse Time Overcurrent Element 3 .......................................8.24
Table 8.61 81 Elements ...............................................................................................................................8.25
Table 8.62 Under Voltage (27) Element e...................................................................................................8.25