Setting Up The Filter Rating Parameter - ABB PQFS Installation, Operation And Maintenance Instructions

7.7.2.4 Setting up the filter rating parameter

For entering the rating parameter, go to
[/Welcome/Settings/Commissioning/Rating]
The permissible ambient conditions for PQFS operation are laid out in
The total required derating is the sum of all the deratings taking into account the
installation height and the ambient temperature.
The PQF-Manager rating menu shows the filter nominal rating, which is by default 100%.
The new value to be set when derating is required is 100% - (total required derating %).
98 The PQF-Manager user interface ç Manual Power Quality Filter PQFS
§
does the CT (cabling) have the good orientation (Line x) or not
(-Line x)
Remark:
for the CT physically installed in Line 1 (L1, R, U):
o
§
the CT ratio, which is always positive; e.g. a CT of 5000/5 has a
ratio 1000
for the CT physically installed in Line 2 (L2, S, V):
o
§
the CT ratio, which is always positive; e.g. a CT of 5000/5 has a
ratio 1000
for the CT physically installed in Line 3 (L3, T, W):
o
§
the CT ratio, which is always positive; e.g. a CT of 5000/5 has a
ratio 1000
After entering all the above mentioned values, the filter resets and the settings
are taken into account.
Remarks:
Pressing
o
§
For single unit filters, the original CT-values and positions
existing prior to the start of the procedure be restored.
§
For multi-unit filters, the new values will be stored in the units
for which the CT setting were already accepted, and will be
restored to the initial values in the other units.
Section 8.6
o
case the automatic CT detection procedure cannot be used or is
unsuccessful.
Refer to Section 6.9
o
selection and the installation of the current transformers.
· If the filter is installed at locations higher than 1000 m (3300 ft) above sea level,
the maximum filter output current must be derated by 1% every additional 100m
(330ft).
· Above 40°C (104°F), the maximum output current must be derated by 3.5%
every additional 1°C (1.8°F) up to 50°C (122°F) maximum limit.
If the CT installation is correct, enter 'Line 3'.
If the CT is installed in the right phase but inversed,
enter '-Line 3'.
during the manual CT setup procedure will result in:
gives guidelines on how to identify the position of the CTs in
and Section 6.10 for more information on the
Table 13.