Step 9: Set Up The User Requirements - ABB PQFM Instruction Manual

Once the harmonic is selected, analyze the spectrum of the line currents to see if the
selected harmonic is filtered. Refer to
measurement results. If the harmonic is not filtered properly (e.g. if it is amplified),
deselect the harmonic and refer to
When harmonic load is not present, the filter can be tested by generating static reactive
power. Initially a low value can be set which can then be gradually increased to the
nominal filter rating.
- For setting
[/Welcome/Settings/Customer set./Main settings/Main PFC/Bal.].
- For setting
[/Welcome/Settings/Customer set./Auxiliary settings/Aux. PFC/Bal.].
Set the 'PFC Type' item to 'Static cap.' and choose the desired value for the item 'Q
static'.
For more information on the main and auxiliary settings concept, refer to
Once the reactive power is selected, analyze the filter current. Refer to
more information on displaying measurement results. Refer to
problems. Disable the reactive power setting after the test if it is not required by the
user.

8.10 Step 9: Set up the user requirements

If everything goes well at this stage, the user requirements for harmonic filtration and
reactive power compensation/balancing can be set up. Both main and auxiliary settings
can be programmed if desired.
By default the filter is set up to take into consideration the main settings only.
- Select the desired filter mode.
- Select the harmonics and the curve level.
- Select the reactive power and balancing settings.
Background information on all the items discussed above is given in
At this stage, verify the functioning of the settings made for the digital I/O if possible
(e.g. remote control, local start/stop buttons).
Remarks:
- Refer to
- Filter running at 100% load while RMS current rating is not attained.
Under exceptional conditions it is possible that the active filter is showing a 100%
load indication whereas its nominal RMS current rating is not yet attained. This is
because the filter has reached an operating limit other than the RMS current limit.
Possible other limits are:
174 The PQF-Manager user interface ç Manual Power Quality Filter PQFM
Chapter 11
up the filter's
up the filter's
Chapter 11 for troubleshooting problems.
Section 7.8.2 for more information on displaying
for troubleshooting the problem.
main reactive
auxiliary harmonics
power feature go
selection go
Section 7.9.1.1.
Section 7.8.2
Chapter 11 in case of
Section 7.9.1.1.
to
to
for