
M3x5/EN M/B
User Manual
Page 80
iSTAT M3x5
Meas. type
Measurement
3-phase
4-wire
3-phase
3-wire
1-phase
comments
Phase
Voltage
measurements
U
1-3_RMS
1ph
U
AVG_RMS
U
unbalance_neg_RMS
U
unbalance_zero_RMS
U
1-3_DC
1ph
DC component of phase voltages
Current
I
1-3_RMS
1ph
I
TOT_RMS
I
AVG_RMS
Power
P
1-3_RMS
1ph
P
TOT_RMS
Q
1-3_RMS
1ph
Q
TOT_RMS
reactive power can be calculated as a
squared difference between S and P
or as delayed sample
S
1-3_RMS
1ph
S
TOT_RMS
PF
1-3_RMS
1ph
1-3_RMS
1ph
PA – Power angle
Harmonic analysis
THD-U
1-3
1ph
THD-I
1-3
1ph
TDD-I
1-3
1ph
U
1-3_harmonic_1-63_%
1ph
% of RMS or % of base
U
1-3_harmonic_1-
63_ABS
1ph
U
1-3_harmonic_1-63_
1ph
U
1-3_inter-harmonic_%
1ph
U
1-3_inter-harmonic_ABS
1ph
monitoring up to 10 different fixed
frequencies. % of RMS or % of base
U
1-3_signaling_%
1ph
U
1-3_signaling_ABS
1ph
monitoring of signaling (ripple) voltage
of set frequency. % of RMS or % of
base
I
1-3_harmonic_1-63_%
1ph
% of RMS or % of base
I
1-3_harmonic_1-63_ABS
1ph
I
1-3_harmonic_1-63_
1ph
Flickers
Pi
1-3
1ph
Instantaneous flicker sensation
measured with 150 samples / sec
(original sampling is 1200 smpl/sec)
Pst
1-3
1ph
10 min statistical evaluation (128
classes of CPF)
Plt
1-3
1ph
derived from 12 Pst acc. to EN 61000-
4-15
Miscellaneous
K-factor
1-3
1ph
Current Crest
factor
1-3
1ph
Further description is available in following subchapters
TABLE 12-1:
SELECTION OF AVAILABLE MEASUREMENT QUANTITIES
Summary of Contents for iSTAT M355
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