Triggering is recorded to the nearest quarter-cycle (4.17 ms) and referenced to the 16th row
of data in the report. All reports trigger at row 16. This system allows you to determine the
total duration of a long fault which triggers two event reports. Simply calculate the time
difference between the report generated at fault inception and the report generated by the
TRIP.
SUMMARY EVENT REPORT
The summary report is automatically transmitted from port(s) designated AUTOMATIC
regardless of access level, as long as the designated port has not timed out. If automatic
transmissions are monitored by a dedicated channel or printed on a dedicated printer, enter a
timeout setting of zero for the appropriate port.
Due to the length of the full report, it is not automatically transmitted. You can display the
full report with the EVENT command.
The summary event report includes:
Relay identifier
Date and time
Event type
Fault location
Secondary ohms from relay location to fault
Duration relay elements are picked up
Maximum phase current measured near the middle of fault
The following shows an example summary event report.
The relay clears the event report and history buffer for the following conditions:
Loss of control power
Entry of a new setting via the SET or LOGIC commands
4-2
Event Reporting
SEL-221F, -1 Instruction Manual
Date Code 920423
Summary of Contents for SEL-221F
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Page 110: ...Example Event Report 2 4 12 Event Reporting SEL 221F 1 Instruction Manual Date Code 930830 ...
Page 158: ...SETTINGS SHEET FOR SEL 221F RELAY PAGE 2 OF 6 DATE Date Code 921110 ...
Page 160: ...SETTINGS SHEET PAGE 4 OF 6 FOR SEL 221F RELAY DATE Date Code 930601 ...
Page 161: ...SETTINGS SHEET PAGE 5 OF 6 FOR SEL 221F RELAY DATE Date Code 961208 ...
Page 229: ...SEL 200 Series Relay Main Board Troubleshooting Test Points and Jumper Locations ...