H.4
SEL-787 Relay
Instruction Manual
Date Code 20081022
Synchrophasors
Settings for Synchrophasors
Settings for Synchrophasors
The phasor measurement unit (PMU) settings are listed in
. Modify
these settings when you want to use the C37.118 synchrophasor protocol.
The Global enable setting EPMU must be set to Y before the remaining
SEL-787 synchrophasor settings are available. No synchrophasor data
collection can take place when EPMU := N.
You must make the serial port settings in
synchrophasor protocol. It is possible to set EPMU := Y without using any
serial ports for synchrophasor protocols. For example, the serial port
MET PM
ASCII command can still be used.
Certain settings in
are hidden, depending on the status of other
settings. For example, if PHDATAI := NA, the PHCURR setting is hidden to
limit the number of settings for your synchrophasor application.
Table H.1
PMU Settings in the SEL-787 for C37.118 Protocol in Global
Settings
Setting
Description
Default
EPMU
Enable Synchronized Phasor Measurement
(Y, N)
N
a
a
Set EPMU := Y to access the remaining settings.
MRATE
Messages per Second {1, 2, 5, 10}
10
PMSTN
Station Name (16 characters)
SEL-787 XFRMR 1
PMID
PMU Hardware ID (1–65534)
1
PHDATAV
Phasor Data Set, Voltages (V1, ALL, NA)
V1
VCOMP
Voltage Angle Comp Factor
(–179.99 to 180 deg)
0.00
PHDATAI
Phasor Data Set, Currents (I1, ALL, NA)
NA
PHCURR
b
b
Setting hidden when PHDATAI := NA.
Current Source (IW1, IW2, BOTH)
BOTH
IW1COMP
IW1 Angle Comp Factor
(–179.99 to 180 deg)
0.00
IW2COMP
IW2 Angle Comp Factor
(–179.99 to 180 deg)
0.00
NUMANA
Number of Analog Values (0–4)
0
NUMDSW
Number of 16-bit Digital Status Words (0, 1)
0
TREA1
Trigger Reason Bit 1 (SEL
OGIC
)
TRIP or ER
TREA2
Trigger Reason Bit 2 (SEL
OGIC
)
81D1T OR 81D2T OR
81D3T OR 81D4T
TREA3
Trigger Reason Bit 3 (SEL
OGIC
)
59P1T OR 59P2T OR
59Q1T OR 59Q2T
TREA4
Trigger Reason Bit 4 (SEL
OGIC
)
27P1T OR 27P2T
PMTRIG
Trigger (SEL
OGIC
)
TREA1 OR TREA2
OR TREA3 OR
TREA4
IRIGC
IRIG-B Control Bits Definition (NONE,
C37.118)
NONE
Summary of Contents for SEL-787
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