9.6
SEL-587Z Instruction Manual Date Code 20020903
Event Reports and SER
Event Reports
The EVENT serial port commands can be entered with only the first three
letters of the word EVENT. For example, the next-most recent 1/8-cycle
resolution event report can be retrieved by entering the command:
EVE L 2
Event
Report Column
Definitions
Refer to the example event report in Figure 9.2 on page 9.15 to view event
report columns. This example event report displays rows of information each
1/8-cycle and is retrieved with the EVENT L n command.
The columns contain current, element, input, and output information. The
current columns show currents in primary amperes. The other columns show a
number, letter, or symbol to indicate the condition of the elements, inputs, and
outputs.
Analog Columns
The current columns show sampled current (after filtering) in primary
amperes.
Note that the analog values change from plus to minus (–) values in Figure 9.2
on page 9.15, indicating the sinusoidal nature of the waveforms.
Digital Element Columns
Various SEL-587Z Relay Word bits appear in the columns to the right of the
analog columns. Table 9.4 on page 9.7 lists the elements that can appear in
these columns.
Obtaining RMS Phasors From 4-Samples/Cycle Event Reports on page 9.15
explains how event report current column data can be converted to phasor rms
current values.
Table 9.3 Event Report Current Columns
Column Heading Definition
87A Voltage measured by high-impedance element 87A
87B Voltage measured by high-impedance element 87B
87C Voltage measured by high-impedance element 87C
IA Current measured by channel IA
IB Current measured by channel IB
IC Current measured by channel IC
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