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4.3.1 RMS MEASUREMENT
This sub-menu displays the waveforms over a period of the measured signals and the true effective values of the voltage
and the current.
The choice of graphs to be displayed depends on the type of electrical connection that was set up during the configuration (see
§ 3.2.4).
● Single-phase: no choice (L1)
● Two-phase: 2V, 2A, L1, L2
● Tri-phase 3 or 4 wires: 3U, 3V, 3A, L1, L2, L3
● Tri-phase 5 wires:
-
For THD, CF and
For RMS,
-
The screen captures shown in this section are examples of those obtained with a 3-Phase 5-Wire connection.
4.3.1.1 RMS DISPLAY SCREEN (3U)
This screen displays the three phase-to-neutral voltages of a 3-phase system when the voltage ratios of phases 1, 2, and
3 are equal.
Item Function
1
Instantaneous value cursor; change values with the cursor using the ◄ and ► buttons
2
RMS phase-to-phase voltages
Instantaneous value of the signals at the intersection of the cursor and the curves
t: time relative to the start of the period (expressed in milliseconds)
3
U1: instantaneous phase-to-phase voltage between phases 1 and 2 (U
U2: instantaneous phase-to-phase voltage between phases 2 and 3 (U
U3: instantaneous phase-to-phase voltage between phases 3 and 1 (U
52
Find Quality Products Online at:
: 3U, 3V, 3A, L1, L2 and L3
: 3U, 4V, 4A, L1, L2, L3 and N
and
1
GlobalTestSupply
www.
02/06/14
Figure 4-22
)
12
)
23
)
31
Power Quality Analyzer PowerPad
.com
2
3
®
III Model 8435
sales@GlobalTestSupply.com
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