10.1.4 Parameters for reactive power control
Country-
spec. Set-
tings
Men
u
level
Display/
Setting
Action in this menu/meaning
cos-phi const.
1 – 0,3
Specified power factor
Over-excited | un-
der-excited
Reactive power mode Under-excited relates to inductive load, over-ex-
cited relates to capacitive load..
Q const.
0 – 100 [% S
max
]
Specification as a % of the maximum reactive power.
Over-excited | un-
der-excited
Reactive power operating type, under-excited corresponds to inductive
load, over-excited corresponds to capacitive load.
cos-phi(P/Plim)
Settling time
200 – 30000 [ms]
Determines the dynamic behaviour in the event of a change in the cos ϕ
set value. With a change of the active power or the lock-in and lock out
voltage, the cos ϕ is changed according to a PT-1 characteristic curve
with a settling time of 5 Tau.
Lock-In voltage
23V – 287V
The control is activated above this voltage.
Lock-Out voltage
23V – 287V
The control is deactivated below this voltage.
Number of nodes
2 – 10
Specify the number of nodes for the cos ϕ/(p/pn) characteristic curve
1st node … 10th node
Voltage | Reactive
power | Excitation
0 – 100 [% S
max
]
Power of the node as a percentage of the maximum power.
For the 1st node, the power must be 0%; for the last node, the power
must be 100%. The power values of the nodes must increase continu-
ously.
Note: Storage inverters only for feed-in operation
0 – 100 %
cos ϕ of the node
Over-excited | un-
der-excited
Reactive power mode Under-excited relates to inductive load, over-ex-
cited relates to capacitive load.
Q(U) 10 nodes
Lock-In power
0 – 100 [% S
max
]
Power threshold, function is activated if limit value is exceeded.
Lock-Out power
0 – 100 [% S
max
]
Power threshold, function is activated if limit value is undershot.
Lock-in time
0 – 60 [s]
Length of time that the active power must remain below the lock-in
power level before control is deactivated.
Lock-out time
0 – 60 [s]
Length of time that the active power must remain below the lock-out
power level before control is deactivated.
4
1
2
3
4
Downtime
0-10000 [ms]
If the voltage switches from a characteristic curve section with Q=0 to a
characteristic curve section with Q≠0 under active control, then the re-
active power setting process is delayed by the set dead time. Once the
dead time has expired, the control circuit is no longer subject to a delay
and the set transient time determines the transient behaviour.
10 | Specifications
Manual
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