Schweitzer Engineering Laboratories SEL-421-4 - Page 1442

18.36
SEL-400 Series Relays Instruction Manual Date Code 20171006
Synchrophasors
Control Capabilities
The relay is now ready to start transmitting synchrophasors and receive Fast
Operate commands from the SVP.
Real-Time Control
The PMU can be configured to process C37.118 synchrophasor data received
from two remote PMUs over serial ports. The PMU processes the remote PMU
data, time aligns them with the local data, and makes them available as analogs
and digitals. Use the local synchrophasor analogs and as many as two remote sets
of synchrophasor analogs in SEL
OGIC equations to do real-time control (RTC)
applications.
Table 18.22 shows the serial port settings that need to be configured for RTC
applications.
Descriptions for the settings in Table 18.22 are as follows.
PMUMODE
Selects whether the port is operating as a synchrophasor server (source of data) or
a client (consumer of data). When the port is intended to be a source of synchro-
phasor data, set this setting to SERVER. The Global setting MFRMT determines
the format of the transmitted data. When using the port to receive synchrophasor
data from another device, set this setting to either CLIENTA or CLIENTB. Only
two ports may be configured as client ports and they must be uniquely configured
for Channel A or Channel B. When a port is configured to receive synchrophasor
data, the port will only receive data using the C37.118 format, regardless of the
MFRMT setting.
RTCID
Expected synchrophasor ID from remote relay.
When the PMU is operating as a synchrophasor client (PMUMODE set to CLI-
ENTA or CLIENTB), it will only accept incoming messages that contain this ID.
Make sure this ID matches the ID configured in the remote relay.
Table 18.22 Serial Port Settings for RTC
Setting Description Default
PMUMODE
a
a
Set PROTO := PMU to enable (on this port) the Synchrophasor Protocol selected by Global setting
MFRMT.
PMU Mode (CLIENTA, CLIENTB, SERVER) SERVER
RTCID
b
b
Setting hidden when PMUMODE := SERVER.
Remote PMU Hardware ID (1–65534) 1
PMODC
c
c
Only available when PMUMODE := SERVER.
PMU Output Data Configuration (1–5) 1