Hioki 3197 - Selecting the Voltage Harmonic Calculation Method; Selecting the Power Factor Calculation Method (PF Type)

4.2 Selecting the Measurement Method (SYSTEM Screen) [MEASURE]
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Selecting the Voltage Harmonic Calculation Method
Move to the setting item.
Select the screen.
1
2
Setting Contents
Rms Value Displays rms harmonic voltage.
Percentage
Content
Displays the amplitude (harmonic voltage percentage) of an harmonic or-
der component relative to that of the fundamental waveform.
Select from the pull-down menu.
3
Accept
Cancel
Selecting the Power Factor Calculation Method (PF Type)
Move to the setting item.
Select the screen.
1
2
Setting Contents
PF Displays power factor.
DPF Displays displacement power factor.
Select from the pull-down menu.
3
Accept
Cancel
What is the power factor?
• PF (Power Factor) is the ratio of apparent power to active power. Its calculation includes all fre-
quency components, so large harmonic components result in a small power factor.
• DPF (Displacement Power Factor) is the cosine of the phase difference between the fundamen-
tal voltage and current waveforms. Its calculation includes only fundamental waveform contents,
s
o harmonics have no effect.