Normal Operation - Reclosing .......................................................................................................... 8-35
Normal Operation - Bus Protection .................................................................................................. 8-36
Normal Operation - Alarms ............................................................................................................... 8-36
Contingency Operation - Test Mode ................................................................................................ 8-36
Contingency Operation - Backup Protection for Feeder Breaker Failure ........................................ 8-37
Contingency Operation - Backup Protection for Feeder Relay Out-of-Service ................................ 8-37
Feeder_4 Logic Settings and Equations for Sensing Input Type H Relays ..................................... 8-43
Feeder_4 Logic Settings and Equations for Sensing Input Type G Relays ..................................... 8-43
Bus and Backup Logic Schemes ......................................................................................................... 8-44
Normal Operation - Control .............................................................................................................. 8-44
Normal Operation - Bus Protection .................................................................................................. 8-44
Normal Operation - Setting Group Selection .................................................................................... 8-45
Normal Operation - Alarms ............................................................................................................... 8-45
Contingency Operation - Test Mode ................................................................................................ 8-45
Contingency Operation - Backup Protection for Bus Breaker Failure .............................................. 8-45
Contingency Operation - Backup Protection for BUS Relay Out-of-Service .................................... 8-46
Contingency Operation - Backup Protection for BACKUP Relay Out-of-Service ............................ 8-46
Contingency Operation - Backup Protection for Feeder Relay Out-of-Service ................................ 8-46
BUS Logic Settings and Equations for Sensing Input Type H Relays ............................................. 8-52
BACKUP Logic Settings and Equations for Sensing Input Type H Relays ...................................... 8-59
BACKUP Logic Settings and Equations for Sensing Input Type G Relays ..................................... 8-59
Miscellaneous Logic Settings ............................................................................................................... 8-61
Application Tips .................................................................................................................................... 8-61
Trip Circuit Continuity and Voltage Monitor ...................................................................................... 8-61
Close Circuit Monitor ........................................................................................................................ 8-62
High-Speed Reclose ........................................................................................................................ 8-63
Block Load Tap Changer .................................................................................................................. 8-63
Block Neutral and Negative-Sequence Protection ........................................................................... 8-63
Setting Group Selection ................................................................................................................... 8-64
Output Contact Seal-In ..................................................................................................................... 8-64
Oscillographic Recording of Breaker Closures and Openings ......................................................... 8-65
Figures
Figure 8-1. Typical One-Line Diagram for Factory Default Logic Settings ................................................ 8-6
Figure 8-2. Factory Default Logic Settings Diagram ................................................................................. 8-7
Figure 8-3. Typical One-Line Diagram for Feeder_1 Logic ..................................................................... 8-14
Figure 8-4. Feeder_1 Logic Diagram ....................................................................................................... 8-15
Figure 8-5. Typical One-Line Diagram for Feeder_2 Logic ..................................................................... 8-23
Figure 8-6. Feeder_2 Logic Diagram ....................................................................................................... 8-24
Figure 8-7. Typical One-Line Diagram for Feeder_3 Logic ..................................................................... 8-32
Figure 8-8. Feeder_3 Logic Diagram ....................................................................................................... 8-33
Figure 8-9. Typical One-Line Diagram for Feeder_4 Logic ..................................................................... 8-41
Figure 8-10. Feeder_4 Logic Diagram..................................................................................................... 8-42
Figure 8-11. Typical One-Line Diagram for BUS Logic ........................................................................... 8-50
Figure 8-12. BUS Logic Diagram ............................................................................................................. 8-51
Figure 8-13. Typical One-Line Diagram for Backup Logic ...................................................................... 8-57
Figure 8-14. BACKUP Logic Diagram ..................................................................................................... 8-58
Figure 8-15. Interconnection Diagram for Integrated Protective System ................................................ 8-60
Figure 8-16. Trip Circuit Continuity and Voltage Monitor ........................................................................ 8-62
Figure 8-17. Close Circuit Monitor Logic ................................................................................................. 8-62
Figure 8-18. High-Speed Reclose Interlock Logic ................................................................................... 8-63
Figure 8-19. Output Seal-In Logic Diagram ............................................................................................. 8-65
Tables
Table 8-1. Factory Default Contact Sensing Input Logic Settings ............................................................. 8-3
Table 8-2. Factory Default Function Blocks Logic Settings ....................................................................... 8-4
Table 8-3. Factory Default Virtual Switch Logic Settings .......................................................................... 8-4
Table 8-4. Factory Default Virtual Output Logic Settings .......................................................................... 8-5
Table 8-5. Feeder_1 Contact Sensing Input Logic .................................................................................. 8-10
ii
BE1-851 Application
9289900990 Rev R
