Appendix L L-PRO Setting Example
D02706R02.30
L-PRO 4000 User Manual
Appendix L-19
12 Go to the Control Virtual Inputs and select “52-1, 52-2 Trip&79I” using
the Pulse On action for the Virtual Input 5. This will trip both breakers and
initiate the reclosing sequence.
Figure L.35: select 52-1, 52-2 Trip&79I using the Pulse On action
13 Check the event log and confirm that 52-1was the first breaker and 52-2
was the second breaker. Check open interval time and follower time, the
close pulse can be measured from the time between PL9 and PL10 going
high.
• T1 - Open interval time equals time from 79 Initiate event to 79 Main
Reclose (shot 1) event.
• TP - Close pulse time equals time from TP start: PL9 event to TP end:
PL10 event.
• TF - Follow breaker time equals time from 52-1 “a” status: PL2 event
to 79 Au Auxiliary Reclose (shot 1) event.
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