18.40
SEL-400 Series Relays Instruction Manual Date Code 20171006
Synchrophasors
Control Capabilities
Figure 18.14 shows the SELOGIC settings for the remote relay. Set PSV64 to
indicate that the sending data are correct. These data are sent with the synchro-
phasor data in the C37.118 data packet and are received by the local relay as
RTCAD16. The RTCAD16 qualification on line 11 of the local relay (see
Figure 18.13) contains this remote data quality indicator. A local relay quality
indicator also qualifies line 11.
Set the remote relay Global settings according to Figure 18.15. Set the number of
digitals (NUMDSW) to one. In this case, the relay sends SEL
OGIC values
PSV49–PSV64 in the C37.118 data packet. This is how the remote TSOK AND
PMDOK qualification maps to the local RTCAD16 Relay Word bit. Set the PMU
application (PMAPP) to fast, because this is a protection application. Therefore,
you must choose a filter for faster response. Also set the synchrophasor enable
Global setting to yes (EPMU = Y). The MRTCDLY and RTCRATE settings are
set but not used by the remote relay.
Set the local relay Global settings according to Figure 18.16. It is important for
synchrophasors to be enabled (EPMU = Y), the application to be fast
(PMAPP = F), the compensation settings to be set correctly (VYCOMP,
VZCOMP, IWCOMP, and IXCOMP), and for IRIGC = C37.118.
Set MRTCDLY for the maximum expected communications channel delay in
milliseconds. Any data arriving later than this time are rejected. The RTCDLYA
Relay Word bit indicates this condition. Use the MRTCDLY to constrain the
Protection 1
1: PMV53 := V1YPMAD
2: PMV54 := RTCAP02
3: PMV55 := V1YPMAD - RTCAP02
4: PSV01 := PMV55 >= 180.000000
5: PMV01 := -180.000000
6: PSV02 := PMV55 <= PMV01
7: PMV01 := PMV55 + 360.000000
8: PMV02 := PMV55 - 360.000000
9: PMV55 :=NOT PSV01*PMV55+PSV01*PMV02
10: PMV55 :=NOT PSV02*PMV55+PSV02*PMV01
11: PCT01PU := 0.000000
12: PCT01DO := 1.750000
13: PCT01N := R_TRIG RTCROKA
14: PSV01 := PCT01Q AND RTCAD16
15: PMV56 := ABS(PMV55)
16: PSV03 :=(PMV56 > 10.000000) AND PSV01
Figure 18.13 Local Relay SELOGIC Settings
1: PSV64 := TSOK AND PMDOK
Figure 18.14 Remote Relay SELOGIC Settings
Synchronized Phasor Measurement Settings
MFRMT := C37.118 MRATE := 60 PMAPP := F PHCOMP := Y
PMSTN := "REMOTE RTC"
PMID := 8
PHDATAV := V1 VCOMP := 0.00 PHDATAI := NA IWCOMP := 0.00
IXCOMP := 0.00 PHNR := F PHFMT := P FNR := F
NUMANA := 0 NUMDSW := 1
TREA1 := NA
TREA2 := NA
TREA3 := NA
TREA4 := NA
PMTRIG := NA
MRTCDLY := 100
RTCRATE := 60
Time and Date Management
IRIGC := C37.118
Figure 18.15 Remote Relay Global Settings
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