Settings Up Harmonics, Reactive Power And Filter Mode - ABB PQFS Installation, Operation And Maintenance Instructions

7.7.1.1 Settings up harmonics, reactive power and filter mode

'Activate' field value
Main
Auxiliary
Ext. input
Remark:
(a)
Refer to
configuring the digital input for this feature.
84 The PQF-Manager user interface ç Manual Power Quality Filter PQFS
In multi-master units these functions need to be set up only in the master with the
lowest hardware ID setting.
· Setting up harmonics, reactive power and filter mode can be done in a main
window [/Welcome/Settings/Customer set./Main settings] and in an auxiliary
window [/Welcome/Settings/Customer set./Auxiliary settings]. By having two
windows, the customer can set two sets of different settings, e.g. one set for
mains operation and one set for generator operation, or one set for day settings
and one set for night settings. Both main and auxiliary settings windows have the
same setup possibilities, i.e.
Definition of the filter mode
o
Selection of the harmonics with setting of curve levels
o
Selection of reactive power compensation with balancing functionality
o
Deselection of all harmonics
o
· The filter has to be informed about whether the main window settings or the
auxiliary window settings must be used. This is done by the 'Activate' flag
[/Welcome/Settings/Customer set/Activate]. Possible values for this flag are given
in Table 35. By default the filter uses the main filter settings.
Table 35: Possible settings for the activate field
Description
Main window settings are always used
Auxiliary window settings are always used
The filter switches between the main and the auxiliary settings
according to a signal applied to the PQF-Manager's digital input
Section 6.12.5 for cabling instructions for this feature. Refer to
· Setting up the filter mode
For setting up the filter's main filter mode go to [/Welcome/Settings/Customer
set./Main settings/Filter mode].
For setting up the filter's auxiliary filter mode go to [/Welcome/Settings/Customer
set./Auxiliary settings/Filter mode].
The filter can have three types of effect on the network:
Filter the selected harmonics until their magnitudes are close to zero
o
(Maximum Filtering)
Filter the selected harmonics until their magnitudes reach the residual
o
level permitted by the user (Filtering to Curve)
Produce or absorb reactive power including load balancing
o
The user can put the emphasis on one of the above effects by selecting the
filtering mode. Table 36 shows the three available modes:
(a)
.
Section 7.7.1.2