10.19
Date Code 20090730 Instruction Manual SEL-734 Meter
Communications
Command Explanations
factor, maximum/minimum logging of selected quantities, and
transformer/line losses (see Table 4.1 for metered quantity definitions).
To make the extensive amount of meter information manageable, the meter
divides the displayed information into seven groups:
➤ Crest Factor
➤ Demand
➤ Energy
➤ Harmonic
➤ Instantaneous Transformer/Line Losses
➤ Instantaneous and RMS
➤ Maximum/Minimum
MET CF (Crest Factor Metering)
The MET CF command displays the crest factor values of the quantities in
Table 10.9.
To view maximum/minimum metering values, enter the command:
=>MET CF <Enter>
Reset the maximum/minimum values using the MET CF R command from
Access Level E or higher. All values will display
RESET until new
maximum/minimum values are recorded.
For more information on crest factor metering, see Crest Factor Metering on
page 4.18.
MET D (Demand Metering)
The MET D command displays the demand and peak demand values in
primary units of the quantities in Table 10.10.
Table 10.9 MET CF Command Displayed Quantities
Currents I
A,B,C,N
Input currents (A primary)
Voltages V
A,B,C
Wye-connected voltage inputs (kV primary)
V
AB,BC,CA
Delta-connected voltage inputs (kV primary)
Reset Time LAST RESET Last date and time the
maximum/minimum meter was reset
Table 10.10 MET D Command Displayed Values (Sheet 1 of 2)
Currents I
A,B,C,N
Input currents (A primary)
Power P (MW
A,B,C
) Single-phase megawatts (Form 9 only)
P (MW
3P
) Three-phase megawatts
S (MVA
A,B,C
) Single-phase apparent power (Form 9
only)
S (MVA
3P
) Three-phase apparent power
Q (MVAR
A,B,C
) Four-quadrant single-phase megavars
(Form 9 only)
Q (MVAR
3P
) Three-phase megavars
Courtesy of NationalSwitchgear.com
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