Sel SEL-421 - Page 27

xxixList of Figures
Date Code 20020501 SEL-421/SEL-421-1 Relay
Section 6: SEL-2030 Applications
Figure 6.1 SEL-2030 Star Integration Network................................................................................... A.6.2
Figure 6.2 Multitiered SEL-2030 Architecture. .................................................................................. A.6.3
Figure 6.3 Enhancing Multidrop Networks With the SEL-2030......................................................... A.6.5
Figure 6.4 Example SEL-421 Relay and SEL-2030 Configuration. ................................................... A.6.6
Section 7: Direct Network Communication
Figure 7.1 DNP Multidrop Network Topology.................................................................................... A.7.3
Figure 7.2 DNP Star Network Topology. ............................................................................................ A.7.4
Figure 7.3 DNP Network with Communications Processor. ............................................................... A.7.4
Figure 7.4 Example Direct Networking Topology............................................................................... A.7.7
Figure 7.5 Telnet Connection Dialog Box........................................................................................... A.7.9
Figure 7.6 Example FTP Session....................................................................................................... A.7.10
Figure 7.7 Partial Contents of SET_P5.TXT. .................................................................................... A.7.11
Figure 7.8 Example Telnet Session. .................................................................................................. A.7.12
Reference Manual
Section 1: Protection Functions
Figure 1.1 ESS := 1; Single Circuit Breaker Configuration. ................................................................R.1.3
Figure 1.2 ESS := 2; Single Circuit Breaker Configuration. ................................................................R.1.3
Figure 1.3 ESS := 3; Double Circuit Breaker Configuration................................................................R.1.4
Figure 1.4 ESS := 4; Double Circuit Breaker Configuration................................................................R.1.5
Figure 1.5 Tapped EHV Overhead Transmission Line.........................................................................R.1.6
Figure 1.6 ESS := Y; Tapped Line........................................................................................................R.1.7
Figure 1.7 ESS := Y; Single Circuit Breaker
With Current Polarizing Source Tapped Power Transformer. .........................................R.1.8
Figure 1.8 Frequency Estimation........................................................................................................R.1.10
Figure 1.9 Pole Open Logic Diagram.................................................................................................R.1.15
Figure 1.10 LOP Logic Process Overview ...........................................................................................R.1.17
Figure 1.11 LOP Logic.........................................................................................................................R.1.19
Figure 1.12 32Q and 32QG Enable Logic Diagram. ............................................................................R.1.25
Figure 1.13 32V and 32I Enable Logic Diagram. ................................................................................R.1.25
Figure 1.14 Best Choice Ground Directional Logic.............................................................................R.1.27
Figure 1.15 Negative-Sequence Voltage-Polarized Directional Element Logic...................................R.1.28
Figure 1.16 Zero-Sequence Voltage-Polarized Directional Element Logic. ........................................R.1.28
Figure 1.17 Zero-Sequence Current-Polarized Directional Element Logic. ........................................R.1.29
Figure 1.18 Ground Directional Element Output Logic Diagram........................................................R.1.29
Figure 1.19 32P, Phase Directional Element Logic Diagram. ..............................................................R.1.33
Figure 1.20 32Q, Negative-Sequence Directional Element Logic Diagram. .......................................R.1.34
Figure 1.21 CVT Transient Detection Logic........................................................................................R.1.36
Figure 1.22 Load-Encroachment Logic Diagram.................................................................................R.1.39
Figure 1.23 Load-Encroachment Characteristics. ................................................................................R.1.39
Figure 1.24 OOS Characteristics. .........................................................................................................R.1.41
Figure 1.25 OOS Positive-Sequence Measurements............................................................................R.1.44
Figure 1.26 OOS Override Logic. ........................................................................................................R.1.44
Figure 1.27 OOS Logic Diagram..........................................................................................................R.1.45
Figure 1.28 Zone 1 Mho Ground Distance Element Logic Diagram. ..................................................R.1.48
Figure 1.29 Zone 2 Mho Ground Distance Element Logic Diagram. ..................................................R.1.49
Figure 1.30 Zones 3, 4, and 5 Mho Ground Distance Element Logic Diagram...................................R.1.50
Figure 1.31 Zone 1 Quadrilateral Ground Distance Element Logic Diagram......................................R.1.53
Figure 1.32 Zone 2 Quadrilateral Distance Element Logic Diagram...................................................R.1.53
Figure 1.33 Zones 3, 4, and 5 Quadrilateral Ground Distance Element Logic. ...................................R.1.54
Figure 1.34 Zone 1 Mho Phase Distance Element Logic Diagram. .....................................................R.1.57
Figure 1.35 Zone 2 Mho Phase Distance Element Logic Diagram. .....................................................R.1.57
Figure 1.36 Zones 3, 4, and 5 Mho Phase Distance Element Logic Diagram......................................R.1.58
Figure 1.37 Zone Timers. .....................................................................................................................R.1.61