Appendix G H N - Current Harmonics Test - Kometec MD 9273 Bedienungsanleitung

MD 9273 Leakage Clamp
U Harmonics chart.
Urms Effective voltage value.
THDu [%] Total harmonic distortion.
THDu [V] Absolute voltage of higher harmonics.
U:h5 [%] Relative value of 5
U:h5 [V] Absolute voltage of 5
*Tap on chart at chosen harmonic to present it value
Appendix G h
Harmonics (1 through to 19) are measured and displayed in the chart as an absolute magnitude of the signal
or as a percentage of the signal value at the fundamental frequency (the 1
magnitude or percent value display is chosen by parameter setting.
Measurement parameters
Type % harmonics and distortion are displayed as relative value
A harmonics and distortion are displayed as absolute value
Connection diagram
Use Current test connection scheme from MD 9273 Manual.
Measurement procedure
 Connect MD 9273 to the item to be tested and set Bluetooth® mode.
 Enter the Harmonics I function and wait for active Bluetooth® communication.
Set Type parameter for display values of harmonics.

 Set charts Y value range within expected values (optional; could be set later).
 Start the continuous measurement.
 Stop the measurement.
harmonic*.
th
harmonic*.
th
– Current harmonics test
n
Figure G.14: Harmonics I test menu
39
hn – Current harmonics test
harmonic h1). Absolute
st