4.236
SEL-700G Relay
Instruction Manual
Date Code 20170814
Protection and Logic Functions
Report Settings (SET R Command)
Event Report Settings
The programmable SEL
OGIC
control equation setting ER is set to trigger event
reports for conditions other than trip conditions. When setting ER sees a
logical 0 to logical 1 transition, it generates an event report (if the SEL-700G
is not already generating a report that encompasses the new transition). For
example ER := R_TRIG 64G1 OR R_TRIG SWING triggers an event report
when either 64G1 or SWING asserts, even if the event does not result in a trip.
Event reports can be 15, 64, or 180 cycles in length, as determined by the LER
setting. The prefault length, PRE, can be set up to (LER-5) cycles. The relay
can hold at least 4, 17, or 72 event reports, depending on the LER setting of
180, 64, and 15 cycles, respectively.
Generator
Autosynchronism
Report
SEL-700G Relays that are equipped with generator synchronism check trigger
the generator autosynchronism report when the SEL
OGIC
control equation
GSRTRG transitions from 0 to 1. The report contains 4800 samples of data,
each containing the analog and digital information shown in Table 4.97. The
resolution and number of pre-trigger data samples are defined by the settings
GSRR and PRESYNC and can be set as necessary.
The relay stores the four latest reports in nonvolatile relay memory. Use the
CGSR command to retrieve the report data. See Figure 4.118 for a sample
graphical display of the report using QuickSet. You can also trigger the report
with the GST command. See Section 7: Communications for more detail on
ASCII commands.
Table 4.94
SET R SER Alias Settings
Setting
Prompt
Relay
Word Bit
Alias
Asserted
Text
Deasserted
Text
ALIAS1 :=
PB01
FP_LOCK
PICKUP
DROPOUT
ALIAS2 :=
PB02
FP_BRKR_SELECT
PICKUP
DROPOUT
ALIAS3 :=
PB03
FP_CLOSE
PICKUP
DROPOUT
ALIAS4 :=
PB04
FP_TRIP
PICKUP
DROPOUT
ALIAS5
–ALIAS20
NA
Table 4.95
Event Report Settings
Setting Prompt
Setting Range
Setting Name :=
EVENT TRIGGER
SEL
OGIC
ER := 0
EVENT LENGTH
15, 64, 180 cyc
LER := 15
PREFAULT LENGTH
1–175 cyc
a
a
The range shown is for LER := 180. The generalized range is 1 - (LER-5) cyc.
PRE := 5
NOTE:
Event report data stored in
the relay will be lost when you
change the LER setting. You must
save the data before changing the
setting.
Table 4.96
Generator Autosynchronism Report Settings
Setting Prompt
Setting Range
Setting Name :=
Factory Default
GEN SYNC TRG
SEL
OGIC
GSRTRG := CLOSEX AND
(25C OR 25AX1 OR 25AX2)
GEN SYNC RPT RES
0.25, 1, 5 cyc
GSRR := 0.25
PRE SYNC LEN
1–4799 samples
PRESYNC := 4790
Содержание SEL-700G Series
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