13-1
IM WT5000-02EN
13.1 Setting IEC Harmonic Measurement Conditions
► “IEC Harmonic Measurement (Option)” in the features guide
► “Harmonic Measurement Conditions (Harmonics)” in the features guide
This section explains how to perform harmonic measurements in accordance with IEC 61000-4-7.
Harmonic measurement and judgment can be performed in accordance with IEC 61000-3-2 by
controlling this instrument using the Harmonic/Flicker Measurement Software (sold separately).
This section explains operating procedures using the following setup methods.
• Procedure Using the Setup Menu (see chapter 1)
Note
• In IEC Harmonic measurement, there is a limitation on the instrument functions and measurement
functions that can be measured. See the appendix in the
Getting Started Guide
, IM WT5000-03EN.
• While controlling this instrument with the Harmonic/Flicker Measurement Software, do not release the
instrument’s remote mode and change the instrument’s settings. If you do, the instrument may not be able
to perform harmonic measurement in accordance with the IEC standard. If you release the instrument’s
remote mode, close the Harmonic/Flicker Measurement Software.
Procedure Using the Setup Menu
1.
Tap the
Setup
icon
, or press
MENU
under SETUP.
2.
From the
Measurement Mode
pull-down menu, select IEC Harmonic. An IEC harmonic
measurement setup screen appears.
Pressing
ESC
closes the setup screen.
Set this to IEC Harmonic.
Set the object under measurement (Element 1 to Element 7
1
, ΣA to ΣC
2
).
Set the PLL source (U1 to U7,
1
I1 to I7,
1
Ext Clk).
Set the minimum
value of the measured
harmonic order (0, 1).
Set the edition number of the IEC 61000-4-7.
(Edition 1.0, Edition 2.0, Edition 2.0 A1)
Set the maximum value of the measured
harmonic order (1 to 500).
Set the distortion factor equation (1/Total, 1/Fundamental).
Set the voltage grouping
(OFF, Type 1, Type 2).
Set the current grouping
(OFF, Type 1, Type 2).
1 Can be set within the range of the installed input elements.
2 Can be set within the range of the wiring unit that is automatically determined by the installed input
elements.
Chapter 13 Performing IEC Harmonic Measurements (Option)