Power Quality Analyzer Model 3945
11
Measurement
selection:
RMS
True RMS Measurement
THD
Total Harmonic Distortion
CF
Crest
Factor
max/min
Maximum and Minimum values
Simultaneous display of the various measurements
in alphanumeric form
Phasor
diagram
The calculation of the DPF, Tan, KF, Φ, UNB, Min, Max, VAR,
Harmonics, PST, and DF parameters and the frequency mea-
surement can only be performed if voltage is applied to the Ch1
voltage input.
Selection of waveforms to be displayed (use the
buttons to select):
•
3U
displays the 3 phase-to-phase voltages U
1-2
, U
2-3
, U
3-1
•
3V
displays the 3 phase-to-neutral voltages V
1N
, V
2N
, V
3N
•
3A
displays the 3 phase currents
•
4A
displays the 3 phase currents and the neutral current
•
L1, L2
or
L3
displays the voltage and current, on phase 1, 2 or 3, when
selected
Protocol:
U: Signifi es phase-to-phase voltage
V: Signifi es phase-to-neutral voltage
L1, L2, L3: Refer to the phases (A,B,C or other)
