Schweitzer Engineering Laboratories SEL-700G Series, Instruction Manual

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H.12
SEL-700G Relay Instruction Manual Date Code 20170814
Synchrophasors
Synchrophasor Relay Word Bits
PMOTSn := UDP_S
This setting establishes a single persistent UDP socket to transmit
synchrophasor messages. Synchrophasor data are transmitted whenever new
data are read. With this communications scheme, the relay sends a
“Synchrophasor Configuration Response 2” once every minute, as shown in
Figure H.6.
Figure H.6 UDP_S Connection
PMOIPA1 and
PMOIPA2
Defines the PMU Output Client IP Address for Session 1 and Session 2,
respectively.
PMOTCP1 and
PMOTCP2
Defines the TCP/IP (Local) Port Number for Session 1 and Session 2,
respectively. The TCP port numbers must all be unique.
PMOUDP1 and
PMOUDP2
Defines the UDP/IP (Remote) Port Number for Session 1 and Session 2,
respectively. The TCP port numbers must all be unique.
Synchrophasor Relay Word Bits
Table H.7 and Table H.8 list the SEL-700G Relay Word bits that are related to
synchrophasor measurement. The Synchrophasor Trigger Relay Word bits in
Table H.7 follow the state of the SEL
OGIC
control equations of the same
name, listed at the bottom of Table H.1. These Relay Word bits are included in
the IEEE C37.118 synchrophasor data frame STAT field. See Table H.4 for
standard definitions for these settings.
The time-synchronization Relay Word bits in Table H.8 indicate the present
status of the timekeeping function of the SEL-700G.
NOTE:
The UDP setting options
(UDP_T, UDP_U, and UDP_S) allow for
both Multicast and Unicast IP
addresses.
C37.118
- Synchrophasor Measurement
- Synchrophasor Configuration Response 2
(Sent once per minute)
SEL-700G
(Persistent)
UDP Socket
Table H.7 Synchrophasor Trigger Relay Word Bits
Name Description
PMTRIG Trigger (SEL
OGIC
)
TREA4 Trigger Reason Bit 4 (SEL
OGIC
)
TREA3 Trigger Reason Bit 3 (SEL
OGIC
)
TREA2 Trigger Reason Bit 2 (SEL
OGIC
)
TREA1 Trigger Reason Bit 1 (SEL
OGIC
)