12.27
Date Code 20060320 Instruction Manual SEL-311C Relay
Standard Event Reports and SER
Example Standard 15-Cycle Event Report
In Figure 12.5, note that two rows of current data from the event report in
Figure 12.3, 1/4 cycle apart, can be used to calculate phasor rms current
values. In Figure 12.5, at the present sample, the phasor rms current value is:
IB = 2475 A ∠ 38.2°
The present sample (IB = 1945 A) is a real rms current value that relates to the
phasor rms current value:
2475 A • cos(38.2°) = 1945 A
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