Schweitzer Engineering Laboratories SEL-321 - Page 176

ii Applications Date Code 20011026
SEL-321/321-1 Instruction Manual
Miscellaneous Scheme Logic......................................................................................5-22
Miscellaneous Timers ................................................................................................. 5-23
SELOGIC
®
Control Equations......................................................................................5-24
Logic Variable Equations............................................................................................5-24
Tripping Logic Equations ...........................................................................................5-24
Event Report Trigger Condition Logic ....................................................................... 5-25
Output Contact Logic.................................................................................................. 5-25
Global Input Settings...................................................................................................5-26
Miscellaneous Global Settings....................................................................................5-26
Settings Sheet for SEL-321 Relay Setting Example................................................................... 5-26
Event Report Trigger Condition Logic ...............................................................................5-34
Output Contact Logic..........................................................................................................5-34
Serial Port Settings (See Appendix G for LMD and Appendix H for MIRRORED
BITS™)........................................................................................................................5-36
TABLES
Table 5.1: System Data for 230 kV Setting Example...............................................................................5-2
FIGURES
Figure 5.1: 230 kV Setting Example System Single-Line Diagram .......................................................5-1