Schweitzer Engineering Laboratories SEL-351 - MET M - Maximum;Minimum Metering

Date Code 20001006 Serial Port Communications and Commands 10-23
SEL-351 Instruction Manual
MET M – Maximum/Minimum Metering
The MET M command displays the maximum and minimum values of the following quantities:
Currents I
A,B,C,N
Input currents (A primary)
I
G
Residual ground current (A primary; IG =3I0 = IA + IB + IC)
Voltages V
A,B,C,S
Wye-connected voltage inputs (kV primary)
V
AB, BC, CA, S
Delta-connected voltage inputs (kV primary)
Power MW
3P
Three-phase megawatts
MVAR
3P
Three-phase megavars
Reset Time Last time the maximum/minimum meter was reset
To view maximum/minimum metering values, enter the command:
=>MET M <ENTER>
The output from an SEL-351 Relay with wye-connected voltage inputs is shown:
=>MET M <ENTER>MET M <ENTER>
FEEDER 1 Date: 02/01/97 Time: 15:16:00.239
STATION A
Max Date Time Min Date Time
IA(A) 196.8 02/01/97 15:00:42.574 30.0 02/01/97 14:51:02.391
IB(A) 195.0 02/01/97 15:05:19.558 31.8 02/01/97 14:50:55.536
IC(A) 200.4 02/01/97 15:00:42.578 52.2 02/01/97 14:51:02.332
IN(A) 42.6 02/01/97 14:51:02.328 42.6 02/01/97 14:51:02.328
IG(A) 42.0 02/01/97 14:50:55.294 42.0 02/01/97 14:50:55.294
VA(kV) 11.7 02/01/97 15:01:01.576 3.4 02/01/97 15:00:42.545
VB(kV) 11.7 02/01/97 15:00:42.937 2.4 02/01/97 15:00:42.541
VC(kV) 11.7 02/01/97 15:00:42.578 3.1 02/01/97 15:00:42.545
VS(kV) 11.7 02/01/97 15:01:01.576 3.4 02/01/97 15:00:42.545
MW3P 6.9 02/01/97 15:00:44.095 0.4 02/01/97 15:00:42.545
MVAR3P 1.0 02/01/97 15:00:42.578 0.1 02/01/97 15:00:42.545
LAST RESET 01/27/97 15:31:41.237
=>
Reset the maximum/minimum values using the MET RM command. All values will display
RESET until new maximum/minimum values are recorded. For more information on
maximum/minimum metering, see Maximum/Minimum Metering in Section 8: Breaker
Monitor, Metering, and Load Profile Functions.
Courtesy of NationalSwitchgear.com