GridSense Line IQ LIQ60, User Manual, Page: 17 / 39

000-2166 Rev 3.0 Franklin Grid Solutions LLC
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Occurrence) is recorded. This process continues until the end of the event profile recording period. This
recording method allows a detailed time plot of the conductor current to be constructed. This plot has
sufficient detail to enable the sequence of current changes caused by recloser operation to be
reconstructed.
The LIQ-60 also stores time stamped changes in power status, which allows a time plot of power status
to be constructed.
Types of Faults
•
Self-Clearing Fault
– A High Current trigger occurred but Power remained unchanged.
•
Transient Fault
– A High Current trigger occurred and Power goes OFF briefly but is restored
before the end of the Event Profile Recording Period.
•
Permanent Fault
– A High Current trigger occurred and Power goes OFF and remains OFF at the
end of the Event Profile Recording Period.
LIQ-60 Load Log retention in memory
If the load log memory fills up, it operates as a circular memory, overwriting the oldest data so that the
latest log data is always retained. This does not affect event storage memory.
2.4.4 Visual Indicators
Visual indications of status and event information are provided by three high intensity LEDs mounted on
the base of the LIQ-60, and therefore visible from the ground when the LIQ-60 is installed on an overhead
conductor.
Figure 3: LIQ-60 base panel