Event Reports; Event Report Triggering - Siemens SIMPRO-100 Instruction Manual

SIMPRO-100
was triggered if a trip did not occur during the
event. Use the summary data to help discern the
cause of relay trip operations before you review
the full event report.
View the present collection of event summaries
using the front-panel History Data menu selection
or the serial port HISTORY command. Each
event summary contains:
• The type of event, from the list of trip
messages in Front-Panel Messages on page
• The event number, date, and time
• The system frequency
• The % Thermal Capacity used
• The % Unbalance Current
• The magnitudes of the phase, neutral,
residual, and negative-sequence currents
• The temperatures of the hottest winding,
bearing, ambient, and other RTDs, if included
• The magnitudes of the phase-to-phase
voltages, if included
• The magnitudes of the real power, reactive
power, and power factor, if voltages are
included
If the event was stored in response to execution
of the serial port TRIGGER command, TRIGGER
will be the listed trip type.
9.5

Event Reports

The SIMPRO-100 Relay captures and stores
detailed information concerning the relay
measurements, protection element status, and
contact input/output status. The relay stores the
14 most recent event reports in nonvolatile
memory. Each report is numbered; older reports
have higher numbers. After the relay reaches the
storage limit, it discards the oldest report every
time it captures a new report.
PRIM-2400C
If you cannot determine the root cause of a relay
trip operation after using the analysis tools
described earlier in this section, analyze the
event report associated with the trip. Each event
report contains the following information:
• Date and time of the event
• Fifteen (15) cycles of current, voltage,
protection element, input, and output data
• Event summary data, described in
Section 9.4, page 118
• Relay settings
The following discussion covers these areas:
• What causes the relay to save an event
report?
• How do I retrieve new event data?
• What does the event data mean?
Chapter 3, page 39 discusses oscillographic
event retrieval and analysis using the
SIMPRO-PC software.
9.5.1

Event Report Triggering

The relay triggers an event report when any of the
following occur:
• The relay trips
• A user executes the serial port TRIGGER
command or serial port or front-panel PULSE
command or STOP command
• Any of the programmable event triggering
conditions occur (see below)
The factory default logic settings include
settings that cause the relay to trigger an
event report when any of the following
conditions occur:
– Thermal Element Alarm
– Load-Loss Alarm
– Current Unbalance Alarm
– Underpower Element Alarm
9
Event Analysis
119