10-22
Serial Port Communications and Commands
Date Code 990215
SEL-351P Manual Técnico
MET k – Instantaneous Metering
The MET k command displays instantaneous magnitudes (and angles if applicable) of the
following quantities:
Currents I
A,B,C,N
Input currents (A primary)
I
G
Residual ground current (A primary; I
G
=3I
0
= I
A
+ I
B
+ I
C
)
Voltages V
A,B,C,S
Wye-connected voltage inputs (kV primary)
Power MW
A,B,C
Single-phase megawatts (wye-connected voltage inputs only)
MW
3P
Three-phase megawatts
MVAR
A,B,C
Single- and three-phase megavars (wye-connected voltage inputs
only)
MVAR
3P
Three-phase megavars
Power Factor PF
A,B,C,3P
Single- and three-phase power factor; leading or lagging
Sequence I
1
, 3I
2
, 3I
0
Positive-, negative-, and zero-sequence currents (A primary)
V
1
, V
2
Positive- and negative-sequence voltages (kV primary)
3V
0
Zero-sequence voltage (kV primary, wye-connected voltage
inputs
only)
Frequency
FREQ (Hz)
Instantaneous power system frequency (measured on voltage
channel VA)
The angles are referenced to the A-phase voltage if it is greater than 13 V secondary; otherwise,
the angles are referenced to A-phase current. The angles range from -179.99 to 180.00 degrees.
To view instantaneous metering values, enter the 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. The output from an SEL-351P
with three-phase wye-connected voltage inputs is shown:
Содержание SEL-351P
Страница 6: ......
Страница 92: ......
Страница 96: ......
Страница 154: ......
Страница 156: ......
Страница 222: ......
Страница 258: ......
Страница 262: ......
Страница 278: ...5 16 Trip and Target Logic Date Code 990215 SEL 351P Manual Técnico Figure SECTION 5 6 POTT Logic ...
Страница 284: ...5 22 Trip and Target Logic Date Code 990215 SEL 351P Manual Técnico Figure SECTION 5 10 DCUB Logic ...
Страница 324: ......
Страница 368: ......
Страница 406: ......
Страница 482: ......
Страница 534: ......
Страница 539: ......
Страница 549: ......
Страница 551: ......
Страница 587: ......
Страница 597: ......
Страница 601: ......
Страница 603: ......
Страница 609: ......
Страница 621: ......
Страница 635: ......
Страница 649: ......
Страница 663: ...H 14 Distributed Network Protocol DNP V3 00 Date Code 991201 SEL 351P Manual Técnico Enter the new DNP Binary map CR ...
Страница 665: ......
Страница 671: ......