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Table 2.32-3 Element IDs for data recording and calculation
Trigger signal for Data recording
Figure 2.32-5 shows a trigger signal for data recording. Respective elements of protective
functions (ZS/ZG, OC, and DIFL) output their operation signals when respective elements
operate; and then, these signals are summarized to the trigger signal by a logic “OR”. In
response to scheme switch [FL-Dir], the FL can record the data of current and voltage if the
fault occurs in either forward or reverse.
Operation signal of ZS elements
Operation signal of ZG elements
Operation signal of OC elements
Operation signal of DIF elements
Trigger signal
for data
recording
Trigger signal
for data
recording
Figure 2.32-5 Data recording trigger from functions and PLC
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