Schweitzer Engineering SEL-351P, Quick Start Manual

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ii Close and Reclose Logic Date Code 990215
SEL-351P Manual Técnico
Factory Settings Example ...........................................................................................6-23
Additional Settings Example 1 ...................................................................................6-23
Additional Settings Example 2 ...................................................................................6-23
Additional Settings Example 3 ...................................................................................6-24
Other Settings Considerations.....................................................................................6-24
Block Reset Timing Setting (79BRS).................................................................................6-24
Example 1....................................................................................................................6-25
Sequence Coordination Setting (79SEQ) ...........................................................................6-25
Reclose Supervision Setting (79CLS) ................................................................................6-26
TABLES
Table 6.1: Relay Word Bit and Front-Panel Correspondence to Reclosing Relay States ......................6-12
Table 6.2: Reclosing Relay Timer Settings and Setting Ranges ............................................................6-15
Table 6.3: Shot Counter Correspondence to Relay Word Bits and Open Interval Times ......................6-18
Table 6.4: Reclosing Relay SEL
OGIC
Control Equation Settings ..........................................................6-18
Table 6.5: Open Interval Time Example Settings...................................................................................6-23
FIGURES
Figure 6.1: Close Logic .............................................................................................................................6-2
Figure 6.2: Reclose Supervision Logic (following open interval time-out) ..............................................6-5
Figure 6.3: Reclose Supervision Limit Timer Operation (refer to bottom of Figure 6.2).........................6-6
Figure 6.4: SEL-351P Recloser Controls Installed at Both Ends of a Transmission Line in a
High-Speed Reclose Scheme .........................................................................................6-9
Figure 6.5: Reclosing Relay States and General Operation ....................................................................6-12
Figure 6.6: Reclosing Sequence from Reset to Lockout with Example Settings ....................................6-16
Figure 6.7: Reclose Blocking for Islanded Generator .............................................................................6-24
Figure 6.8: SEL-351P Recloser Controls in Series, Requiring Sequence Coordination.........................6-26