Power Analysis
184
19.2
Current Harmonics
Current harmonics is used to analyze the input current harmonics. An FFT of the selected channel is performed to get
the harmonic components. The signal settings and connection guide are the same as the power quality test.
19.2.1
Configuration
To configure the current harmonics analysis:
1.
Touch
Config
to display the Config menu shown in figure
2.
Touch
Frequency
to set the frequency of the line.
–
Auto, 50 Hz, 60 Hz or 400 Hz
3.
Touch
Standard
to set the standard type.
–
IEC61000-3- 2 A, IEC61000-3-2 B, IEC61000-3-2 C or IEC61000-3-2 D
4.
Touch
Display
to set the display type.
–
Off, Bar Chart or Table
Figure 19.4
Harmonics
Analysis Menu
19.2.2
Standard
IEC 61000-3-2 is an international standard that limits mains voltage distortion by prescribing the maximum value for
harmonic currents from the second harmonic up to and including the 40th harmonic current. There are 4 different classes
in the EN 61000-3-2 that have different limit values:
•
Class A
: Balanced 3-phase equipment, household appliances excluding equipment identified as class D, tools, excluding
portable tools, dimmers for incandescent lamps, audio equipment, and all other equipment, except that stated in one
of the following classes.
•
Class B
: Portable tools, arc welding equipment which is not professional equipment
•
Class C
: Lighting equipment.
•
Class D
: PC, PC monitors, radio, or TV receivers. Input power P 600 W.I
Содержание 2560B Series
Страница 1: ......
Страница 51: ...Digital Channels 51 Figure 8 9 Digital Bus...
Страница 127: ...Serial Trigger and Decode 127 Figure 10 63 Manchester Bus...
Страница 168: ...Reference Waveform 168 Figure 14 1 Recall REFB...
Страница 210: ...Save Recall 210 Figure 22 4 Save As...