12.19
Date Code 20060320 Instruction Manual SEL-311C Relay
Standard Event Reports and SER
Example Standard 15-Cycle Event Report
Example Standard 15-Cycle Event Report
The following example standard 15-cycle event report in Figure 12.3 also
corresponds to the example sequential events recorder (SER) report in
Figure 12.6. The circled numbers in Figure 12.3 correspond to the SER row
numbers in Figure 12.6. The row explanations follow Figure 12.6.
In Figure 12.3, the arrow (>) in the column following the
V1Mem column
identifies the “trigger” row. This is the row that corresponds to the
Date and
Time values at the top of the event report.
The asterisk (*) in the column following the
V1Mem column identifies the row
corresponding to the “fault” values listed in the event summary report. See
Currents and Voltages on page 12.6. The phase current is calculated from the
row identified with the asterisk and the row one quarter-cycle previous (see
Figure 12.3 and Table 12.1). These currents are listed at the end of the event
report in the event summary. If the “trigger” row (>) and the faulted phase
current row (*) are the same row, the * symbol takes precedence.
To Next Page
Loading...
