ABB PQFS Installation, Operation And Maintenance Instructions page 100

Reactive power task requirement
No requirements
Power factor compensation with
inductive power factor set point, no
load balancing required
Power factor compensation with
capacitive power factor set point,
no load balancing required
Fixed capacitive power step with a
rating of x kvar, no load balancing
(a)
required
Fixed inductive power step with a
rating of x kvar, no load balancing
(a)
required
Remarks:
(a)
When load balancing is required, set the '
following modes are available depending on the way the filter is connected (3-W or 4-W)
-
'Disabled': No load balancing is done.
-
'L-L': Loads connected between phases only are balanced. Loads connected between
phases and neutral are not balanced.
-
'L-N': Loads connected between phase and neutral are balanced. Loads connected
between phases are not balanced. This mode is only available when the filter is connected
in 4-W mode.
-
'L-L & L-N': Both loads connected between phase and neutral as well as loads connected
between phases are balanced. This mode is only available when the filter is connected in
4-W mode.
Note: The modes 'L-N' and 'L-L & L-N' can be used to minimize the amount of fundamental
frequency current flowing in the neutral.
(b) If the measured cos ϕ is higher than the set point and is inductive (e.g. measured 0.97
inductive and set point 0.92 inductive, then the filter will not make any correction. If the
measured cos ϕ is capacitive, the filter will correct the power factor to 1.0
(c) If the measured cos ϕ is higher than the set point and is capacitive (e.g. measured 0.97
capacitive and set point 0.92 capacitive, then the filter will not make any correction. If the
measured cos ϕ is inductive, the filter will correct the power factor to 1.0
100 The PQF-Manager user interface  Manual Power Quality Filter PQFS
Table 43: Reactive power tasks that the filter can perform
Description and filter set-up to be made
PFC type
Balance load: Disabled
The filter will not do any reactive power task,
regardless of the values set for cos ϕ or static reactive
power
PFC type
Target cos ϕ: Desired power factor between 0.6 and
(a)
1.0
The filter will do power factor compensation up to the
cos ϕ set point, regardless of the value set for static
reactive power(b)
PFC type
Target cos ϕ
(a)
1.0
The filter will do power factor compensation up to the
cos ϕ set point, regardless of the value set for static
reactive power
PFC type
Q static
The filter will generate x kvar reactive capacitive
power, regardless of the value set for the target cos ϕ
PFC type
Q static
The filter will absorb x kvar reactive inductive power,
regardless of the value set for the target cos ϕ
: Disabled
: Dyn. Ind.
: Dyn. Cap.
: Desired power factor between 0.6 and
©
: Static cap.
: x kvar
: Static ind.
: x kvar
Balance load
' flag to the desired mode. The