Hioki PW3360-20, Instruction Manual

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5.4 Viewing Voltage and Current Value Details (RMS Values, Fundamental
81
C
h
apter 5 V
iewing M
easure
ment Dat
a
5
Press the or [SCREEN] key to display the [MEAS, U/I] screen.
5.4 Viewing Voltage and Current Value Details
(RMS Values, Fundamental Wave Values,
Peak Values, and Phase Angles)
RMS values Fundamental
wave values
Peak values Phase angles
Current
Voltage
Term Description
RMS value
The square root of the squares of 1,024 sampling points in a
200 ms interval. The value includes harmonic components.
Fundamental

wave value

(FND)
The value obtained by extracting only the fundamental wave
(50/60 Hz) component from the voltage or current waveform.
“FND” stands for “fundamental.”
Peak value
The maximum value of the absolute values of the sampling
points (1,024 points) in a 200 ms interval.
Fundamental

wave phase

angle (PHASE)
The phase angle of the fundamental wave component of U1
expressed in terms of 0°. For current only, the fundamental
wave phase angle of I1 expressed in terms of 0°.
For 3P3W3M wirings, the line-to-line voltage is used for RMS cal-
culations, and the phase voltage from the virtual neutral point is
used for fundamental wave value, peak value, and fundamental
wave phase angle calculations.
See: "Appendix2 Three-phase 3-wire Measurement" (p. A2)
If you want a value using all line-to-line voltages for a 3-phase/3-
wire connection, perform measurement using a 3P3W2M connec-
tion. If you want a value using all phase voltages, continue using
the 3P3W3M connection but change the connection setting only to
3P4W.