GE+ ACDC Installation and operation manual v11
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whereas the other columns are a percentage of the first column. From the 3
th
until
the 11
th
harmonic, the percentage can go from 0% to 100% (0 to ±1) whereas 13
th
and 15
th
can reach 50% (0 to ±0.5).
If the equipment is in parallel, the only available setpoints to introduce are in the
first row and are common for all 3 phases (parallel mode).
2. Ramps section. It controls the softer or faster change of the setpoints of amplitude
(fundamental and harmonics) and phase angles. If the equipment is in parallel
mode, the ramps are controlled only in the first column.
Refresh button is for load the default values, which are 1V/ms and 10deg/ms.
3. Set the phase angle for each phase or for all phases together in case of monophasic
output grid (parallel mode). A three-phase grid is configured with the following
angles: 0º, -120º and -240º. If the user introduces 0º, 0º and 0º, the result will be a
mono-phase grid.
4. Introduce the values for the frequency and the grid resistance. The frequency also
has a ramp to control the change speed. The grid resistance is used only when a
current is flowing throw the equipment. For example, if the resistance is 1Ω
(maximum value) and there are 40A in one phase, there will be a voltage drop of
40V.
Both parameters can be changed in any state of the converter.
The frequency and the grid resistance are the only ones that own a Send button only
for themselves.
If the user introduces a parameter which is out of the converter limits, the interface
will not allow to send it. Please read the manual to know which are the limits of
the converter.
- B: The 3 buttons are used to help the user saving time by remembering default values
of the parts 1 and 3 described above. They can be established by pressing Set Default
Values and it will save the actual parameters. After pressing this button, the user can
use Load Default values to refresh them again. Clear Values will set to 0 the numbers of
the part 1 and 0º, -120º and -240º the numbers of the part 3.
- C: Information part. Meanwhile the user is introducing the setpoints, the theoretical
values (RMS, maximum, crest factor and the total harmonic distortion) are being
calculated and displayed.
- D: Information part. Graphs are being drawn meanwhile entering the data in the A part.
From left to right, the values of fundamental and harmonic setpoints are being
displayed.
- E: Information part. Graphs are being drawn meanwhile entering the data in the A part.
This is a waveform graph and it is the same that will appear on any oscilloscope
connected to the output of the converter.
- F: Once all the values of the parts described above are correct, the user must press Send.
This shall be done in Run state, otherwise the setpoints will not appear in the output.
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