
10.23
Date Code 20090730
Instruction Manual
SEL-734 Meter
Communications
Command Explanations
To view instantaneous metering values, enter the following command:
=>MET
k
<Enter>
where
k
is an optional parameter to specify the number of times (1–32767) to
repeat the meter display. If
k
is not specified, the meter report is displayed
once.
MET M (Maximum/Minimum Metering)
The
MET M
command displays the maximum and minimum values of the
To view maximum/minimum metering values, enter the following command:
=>MET M <Enter>
Use the
MET M R
command from Access Level E or higher to reset the
maximum/minimum values. All values will display
RESET
until the SEL-734
records new maximum/minimum values.
For more information on maximum/minimum metering, see
Maximum/Minimum Metering on page 4.16
MET PM (Synchrophasors)
The
MET PM
serial port ASCII command displays synchrophasor
describes. The
MET PM
command operates
only when EPMU = Y and the Meter Word bit TSOK := 1. The TSOK Meter
Word bit indicates that the IRIG-B signal is sufficiently precise to time-stamp
synchrophasor data.
The synchrophasor data are also available via the
Tools > Meter & Control >
Meter & Control (HMI)
menu in
AC
SEL
ERATOR
QuickSet software, and has
a similar format to
Figure 10.9
.
Table 10.13
MET M Command Displayed Quantities
Currents
I
A,B,C,N
Input currents (A primary)
Voltages
V
A,B,C
Wye-connected voltage inputs (kV primary; Form 9)
V
AB,BC,CA
Delta-connected voltage inputs (kV primary; Form 5)
Power
P3P (MW
3P
)
Three-phase megawatts
Q3P MVAR
3P
)
Three-phase megavars
Reset Time
LAST RESET
Last date and time the
maximum/minimum meter was reset
Table 10.14
MET PM Displayed Quantities
Voltages
VA, VB, VC, V1
Phase-to-neutral and positive-sequence kV
primary voltages, Form 9
VAB, VBC, VCA, V1
Phase-to-phase and positive-sequence kV
primary voltages, Form 5
Currents
IA, IB, IC, I1
Amps primary, Form 9
Frequency
FREQ (Hz)
Metered frequency
Digitals
TSOK, SV03–SV16
Time Source OK and SEL
OGIC
Variables
Содержание SEL-734
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