Sel 411L - Table 15.92 MET PMV Command; Table 15.93 MET RMS Command

P.15.37
Date Code 20151029 Protection Manual SEL-411L Relay
ASCII Command Reference
Description of Commands
In this example, when the internal clock reaches 16:40:10.000, the relay will
display the synchrophasor data from that exact time. If the relay is not in
HIRIG mode at that time, it will display the following message:
Aborted: A High Accuracy Time Source is Required
After the MET PM time command is issued, other MET PM commands may
be entered without affecting the timed request, even if the stated time has not
arrived. However, issuing a second MET PM time command while the first
command is still pending will cancel the first command request in favor of the
newer request.
If you are not connected to the relay when the MET PM time command issues
its timed response, you can use the MET PM HIS command to view this
response. This permits you to issue MET PM time to multiple relays using a
common time and then go back later to see the results from all the relays at
this common instant in time.
See Section 6: Synchrophasors in the Communications Manual for more
information on phasor measurement functions, and View Synchrophasors by
Using the MET PM Command on page C.6.27 for sample MET PM responses.
MET PMV
Use the MET PMV command to view the protection math variables.
The relay displays three places after the decimal point for these numerals. The
relay shows variables with absolute value greater than 99999.999 or less than
0.100 as scientific notation (for example, –1.002E+22).
MET RMS
Use the MET RMS command to view rms (root mean square) metering
quantities. The relay includes power system harmonics and subharmonics in
rms quantities.
NOTE: In firmware R310 and newer,
the RMS value is zero when the
current is below 0.02 • Inom.
MET RTC
Use the MET RTC command to view the data received on all active
synchrophasor client channels.
Ta b l e 1 5.92 M E T P M V Co m m an d
Command Description Access Level
MET PMV Display all protection math variables. 1, B, P, A, O, 2
MET PMV k Display all protection math variables. 1, B, P, A, O, 2
Table 15.93 MET RMS Command
Command
a
a
Parameter n is 1 or 2 to indicate Circuit Breaker 1 or Circuit Breaker 2.
Description Access Level
MET RMS Display Line rms metering data. 1, B, P, A, O, 2
MET RMS k Display Line rms metering data successively
for k times.
1, B, P, A, O, 2
MET BKn RMS Display Circuit Breaker n rms metering data. 1, B, P, A, O, 2
MET BKn RMS k Display Circuit Breaker n rms metering data
successively for k times.
1, B, P, A, O, 2