4.2 Selecting the Measurement Method (SYSTEM Screen) [MEASURE]
62
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,
so harmonics have no effect.
Summary of Contents for 3197
Page 1: ...3197 POWER QUALITY ANALYZER May 2012 Revised edition 7 3197A981 07 12 05H Instruction Manual ...
Page 2: ......
Page 8: ...Contents vi ...
Page 30: ...1 3 Measurement Flowchart 22 ...
Page 44: ...2 5 Internal Operating Status and Memory Usage 36 ...
Page 86: ...4 6 Initializing the Instrument System Reset 78 ...
Page 134: ...6 4 Viewing Recorded Data REVIEW State 126 ...
Page 176: ...9 4 Disposing of the Instrument 168 ...
Page 199: ......
Page 200: ...3197 POWER QUALITY ANALYZER May 2012 Revised edition 7 3197A981 07 12 05H Instruction Manual ...