Ametek RS90-3Pi - Figure 9-24: IEC 1000-4-13 SWEEP; Figure 9-25: IEC 1000-4-13 Harmonics

User Manual AMETEK Programmable Power
RS Series 195
SWEEP GROUP
If the SWEEP group is selected, the screen will appear as shown in Figure 9-24. The screen
has the following parameters that are unique to the group:
Figure 9-24: IEC 1000-4-13 SWEEP
1. LEVEL Sets the percentage level of the interharmonics relative to the fundamental.
The level is fixed for the entire frequency range, which is defined by
FRANGE. To change level, the test state must be off and user class must be
selected.
2. FRANGE The range is selected by rotating the shuttle. The range selection is required
to change the level for the selected range. Also, an individual range sweep
is possible by selecting the desired range and selecting RUN RANGE from
the RUN field.
3. STEP The step size defines the interharmonics sweep points. Step size is fixed for
the entire sweep range. The STEP size can be changed when the test state
is off.
4. IHFREQ This field will show the current interharmonic frequency when the test is
running. An interharmonic frequency can be selected using the shuttle. To
run a frequency without sweeping through the entire range, a RUN POINT
can be selected.
5. RESONANT This field is used to report the resonant points, if any, after running the sweep
test. No editing is allowed in this field. When the test is completed, a display
of harmonics current versus frequency plot is available. To view the graph,
select the field and press the ENTER key.
HARMONICS GROUP
If the Harmonics group is selected, the screen will appear as shown in Figure 9-25. The screen
has the following parameters that are unique to the group:
Figure 9-25: IEC 1000-4-13 Harmonics
1. LEVEL Sets the percentage level of the harmonic relative to the fundamental. Each
level is associated with a harmonic number. To change levels, the test state
must be off and user class must be selected.
2. HARM NO Selecting a harmonic number using the shuttle knob will allow examination of
the LEVEL and PHASE of each harmonic and changing the level and phase
angle when USER class is selected.
3. PHASE Sets the phase angle of the harmonics relative to the fundamental. To change
phase, the test state must be off and user class must be selected.
4. PAUSE Sets the pause time in seconds between harmonics tests. There is only one
value for the entire test. The PAUSE value can be changed when the test is not
running.