Schweitzer Engineering Laboratories SEL-421-4 - Page 1447

18.41
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Synchrophasors
Control Capabilities
maximum longest operating time of the system. Set the RTCRATE to the rate of
synchrophasor data being sent by remote relay. This is the MRATE setting on the
remote relay.
The other Global settings are not relevant to this application.
Set the port settings for the port that sends the synchrophasor data on the remote
relay, according to Figure 18.17.
Set the port settings for the port that receives the synchrophasor data on the local
relay, according to Figure 18.18. Notice that the RTCID setting must match the
PMID setting of the remote relay.
Several Relay Word bits are useful for monitoring system status. Add RTCCFGA
and RTCDLYA to the SER.
The RTCCFGA Relay Word bit is asserted after the two relays have communi-
cated configuration data successfully. RTCCFGA deassertion indicates that the
system has changed, perhaps because of a setting change in one of the relays.
Synchronized Phasor Measurement Settings
MFRMT := C37.118 MRATE := 60 PMAPP := F PHCOMP := Y
PMSTN := "LOCAL RTC"
PMID := 4
PHDATAV := V1 VCOMP := 0.00 PHDATAI := NA IWCOMP := 0.00
IXCOMP := 0.00 PHNR := F PHFMT := P FNR := F
NUMANA := 0 NUMDSW := 0
TREA1 := NA
TREA2 := NA
TREA3 := NA
TREA4 := NA
PMTRIG := NA
MRTCDLY := 100
RTCRATE := 60
Time and Date Management
IRIGC := C37.118
Figure 18.16 Local Relay Global Settings
Protocol Selection
PROTO := PMU
Communications Settings
SPEED := 57600 STOPBIT := 1 RTSCTS := N
SEL Protocol Settings
FASTOP := N
PMUMODE := SERVER
Figure 18.17 Remote Relay Port Settings
Protocol Selection
PROTO := PMU
Communications Settings
SPEED := 57600 STOPBIT := 1 RTSCTS := N
SEL Protocol Settings
FASTOP := N
PMUMODE := CLIENTA
RTCID := 8
Figure 18.18 Local Relay Port Settings