Schweitzer Engineering Laboratories SEL-700G Series, Instruction Manual

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9.3
Date Code 20170814 Instruction Manual SEL-700G Relay
Analyzing Events
Event Reporting
TRI (Trigger Event Report) Command
The sole function of the TRI serial port command is to generate event reports,
primarily for testing purposes. See TRIGGER Command (Trigger Event
Report) on page 7.47 for more information on the TRI (Trigger Event Report)
command.
Event Summaries
For every triggered event, the relay generates and stores an event summary.
The relay stores at least the most recent 72 if event report length setting
LER := 15 or at least 17 if LER := 64 or at least 4 if LER := 180 event
summaries. When the relay stores a new event summary, it discards the oldest
event and event summary if the event memory is full. Event summaries
contain the following information:
➤
Relay and Terminal Identification (RID and TID)
➤
Event number, date, time, event type (see Table 9.1), and
frequency (FREQX, FREQY)
➤
The primary magnitudes of phase, neutral (if neutral CT is
available), and residual currents (at the instant when maximum
event current occurs)
➤
The primary magnitudes of the line to neutral voltage (WYE
setting) or phase-to-phase voltages (DELTA setting), neutral
voltage and synchronism-check voltage, if available
➤
Hottest RTD temperatures, SEL-2600 RTD Module or internal
RTD card option necessary
The relay includes the event summary in the event report. The identifiers, date,
and time information are at the top of the event report, and the remaining
information follows at the end (See Figure 9.3). The example event summary
in Figure 9.1 corresponds to the standard 15-cycle event report in Figure 9.3.
=>>
SUM <Enter>
SEL-700G Date: 02/24/2010 Time: 19:08:09.705
GENERATOR RELAY
Serial No = 000000000000000
FID = SEL-700G-X134-V0-Z001001-D20100224 CID = 1C01
EVENT LOGS = 3
Event: Diff 87 Trip
Targets 11100000
Freqx (Hz) 60.00
Current Mag (X Side)
IAX IBX ICX IGX
(A) 104.5 526.5 102.8 424.43
Current Mag (Y Side)
IAY IBY ICY IGY
(A) 100.7 100.6 105.1 5.32
Neutral Current Mag
IN
(A) 0.10
Voltage Mag (X Side)
VAX VBX VCX VGX
(V) 6690 6691 6683 178
Sync Voltage Mag
VS
(V) 1039
Neutral Voltage Mag
VN
(V) 7583
=>>
Figure 9.1 Example Event Summary
IMPORTANT:
Clearing the
HISTORY report with the HIS C
command also clears all event data
within the SEL-700G event memory.
NOTE:
Figure 9.3 is on multiple
pages.