CG Drives & Automation 01-7318-01r1 Functional description 139
Feed In Active Power level (P3) [G276]
Feed in active power (P3) level at which specified CosΦ3 is
maintained.
Displacement power factor (CosΦ4) At
Active Power level (P4) [G277]
Desired displacement power factor (CosΦ4) at calculated
feed in active power (P4) level.
Feed In Active Power level (P4) [G278]
Feed in active power (P4) level at which specified CosΦ4 is
maintained.
Filter Time Constant On Active Power
Calculations [G279]
Calculated feed in active power (P) used for Cos
Φ
(P) support
has a first order filter. Time constant for that first order filter
can be configured here. This is common time constant for all
the active power levels i.e. P1, P2, P3 and P4.
Limiting Reactive Power (Q) [G28]
Settings related to active power threshold level, reactive
power limit when active power is below threshold level and
priority between active and reactive power are given in this
sub-menu.
Active Power (P) Threshold Level [G281]
This is the active power threshold level below which reactive
power (Q) is limited according to the limit set in [G282].
Reactive Power (Q) Limit Below Active
Power (P) Threshold level [G282]
Reactive power limit when the active power is below the
threshold level [G281] can be configured here.
Active (P) or Reactive (Q) Power Priority
(P/Q) [G283]
AFR/AFG can be configured to prioritize active or reactive
power depending upon the requirement. The priority
setting defines the AFR/AFG behavior when kVA (or
current) limit is reached. When AFR/AFG is configured
with active power priority and the kVA (or current) limit is
reached, reactive power is reduced to maintain the active
power production. Similarly, when AFR/AFG is configured
with reactive power priority and the kVA (or current) limit is
reached, active power is reduced to maintain the reactive
power production.
Default: 75%
Range: 0% - 100%
Default: 1.00
Range: -1.00 - 1.00
NOTE:
-ve CosΦ4 value in [G277] indicates the under excited
(Q-absorbed) mode and +ve sign indicates the over-
excited (Q-delivered) mode.
Default: 100%
Range: 0% - 100%
Default: 3.0s
Range: 0.0s - 60.0s
Default: 0%
Range:
0%: Functionality is OFF
1% - 100%
Default: 10%
Range: 0% - 100%
Default: P
P 0 Active power is prioritized.
Q 1 Reactive power is prioritized.
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