Sel SEL-421 - Page 29

xxxiList of Figures
Date Code 20020501 SEL-421/SEL-421-1 Relay
Figure 2.21 Synchronism-Check Relay Word Bits...............................................................................R.2.44
Figure 2.22 Synchronism-Check Voltage Connections to SEL-421 Relay. .........................................R.2.46
Figure 2.23 Synchronism-Check Voltage Reference............................................................................R.2.47
Figure 2.24 Normalized Synchronism-Check Voltage Sources VS1 and VS2.....................................R.2.48
Figure 2.25 Healthy Voltage Window and Indication. .........................................................................R.2.49
Figure 2.26 Synchronism-Check Enable Logic....................................................................................R.2.49
Figure 2.27 “No Slip” System Synchronism-Check Element Output Response..................................R.2.51
Figure 2.28 “Slip–No Compensation” Synchronism-Check Element Output Response. ....................R.2.52
Figure 2.29 “Slip–With Compensation” Synchronism-Check Element Output Response. .................R.2.54
Figure 2.30 Alternative Synchronism-Check Source 2 Example and Settings. ...................................R.2.57
Section 3: SELOGIC
®
Control Equation Programming
Figure 3.1 Protection and Automation Separation. ..............................................................................R.3.3
Figure 3.2 SEL
OGIC Control Equation Programming Areas................................................................R.3.8
Figure 3.3 Conditioning Timer With Pickup and No Dropout Timing Diagram................................R.3.17
Figure 3.4 Conditioning Timer With Pickup Not Satisfied Timing Diagram.....................................R.3.17
Figure 3.5 Conditioning Timer With Dropout and No Pickup Timing Diagram................................R.3.18
Figure 3.6 Conditioning Timer With Pickup and Dropout Timing Diagram. ....................................R.3.18
Figure 3.7 Conditioning Timer Timing Diagram for Example 3.7.....................................................R.3.19
Figure 3.8 Conditioning Timer Timing Diagram. ..............................................................................R.3.20
Figure 3.9 R_TRIG Timing Diagram. ................................................................................................R.3.27
Figure 3.10 F_TRIG Timing Diagram..................................................................................................R.3.28
Section 4: Communications Interfaces
Figure 4.1 SEL-421 Relay 3U Chassis Front-Panel Layout.................................................................R.4.3
Figure 4.2 SEL-421 Relay 3U Rear-Panel Layout. ..............................................................................R.4.3
Figure 4.3 EIA-232 Connector Pin Numbers. ......................................................................................R.4.3
Figure 4.4 MAP 1:METER Command Example..................................................................................R.4.7
Section 5: SEL Communications Protocols
Section 6: DNP 3.0 Communications
Figure 6.1 DNP Application Network Diagram.................................................................................R.6.29
Section 7: UCA2 Communications
Figure 7.1 GOOSE Application Example Network. ............................................................................R.7.7
Section 8: ASCII Command Reference
Figure 8.1 Sample ID Command Response........................................................................................R.8.24
Figure 8.2 Sample VER Command Response....................................................................................R.8.55
Section 9: Settings
Appendix A: Relay Word Bits
Appendix B: Analog Quantities
Appendix C: GOMSFE Tables