Date Code 20060320 Instruction Manual SEL-311C Relay
Section 12
Standard Event Reports and SER
Overview
The SEL-311C Relay provides two separate event reports:
➤ Standard 15/30/60/180-cycle oscillographic event reports
➤ Sequential events recorder (SER) report
The standard event reports contain date, time, current, voltage, frequency,
relay element, optoisolated input, output contact, and fault location
information.
The relay generates (triggers) standard 15/30/60/180-cycle event reports by
both fixed and programmable conditions. These reports show information for
15, 30, 60 or 180 continuous cycles. At least forty-three 15-cycle, twenty-five
30-cycle, thirteen 60-cycle, or four 180-cycle reports are maintained; if more
reports are triggered, the latest event report overwrites the oldest event report.
See Figure 12.3 for an example standard 15-cycle event report.
The relay adds lines in the sequential events recorder (SER) report for a
change of state of a programmable condition. The SER lists date and time-
stamped lines of information each time a programmed condition changes
state. The relay stores the latest 512 lines of the SER report in nonvolatile
memory. If the report fills up, newer rows overwrite the oldest rows in the
report. See Figure 12.6 for an example SER report.
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