to establish an apparent power reserve and ensure that the agreed reactive power can be delivered from any active
power operating point. [See figure 101] [
Page 88] Displays the appropriate P-Q operating range with a required exam-
ple active power of 48% of the maximum apparent power of the plant or 43% of the maximum active power of the plant.
Fig. 101:
P-Q operating range with limited active power (Qmax=Smax≠Pmax) for PV inverters
10.4.1.1 Parameters for permanent power limitation
Country-
spec. Set-
tings
Men
u
level
Display/
Setting
Action in this menu/meaning
Power limitation
Check activation
Activate or disable the power limitation.
Maximum apparent
power
1000 – S
max
[VA]
The apparent power is limited globally to the configured value in VA. As
soon as S
lim has been configured,
all of the active and reactive power control val-
ues will use S
lim
as 100% instead of S
max
.
Maximum active power
1 – 100 [% S
lim
]
Active power is limited globally to the configured value in % Slim or
Smax.
10.4.2
Soft start-up / Power rampup
A soft start-up function is available to prevent the grid from being negatively impacted by a sudden increase in feed-in
power from the inverters.
When the inverter is activated or switched on, the increase in power is restricted by the set gradient. It is possible to con-
figure whether the soft start-up should occur every time the device is switched on, only upon initial start-up each day or
only upon start-up after the device has been switched off by grid protection. Due primarily to the fact that there is the
risk that many plants could increase their power levels simultaneously after they have been switched off by grid protec-
tion, a soft start-up is usually only required for start-up after a device has been switched off by grid protection.
The soft start up is implemented by an absolute power limitation that increases with a continuous gradient up to the
maximum power. The actual power of the inverter may vary freely below this limit due to a possible fluctuation in the
available power or the target value, but at no time increases above the absolute power limit.
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
KACO blueplanet 137 TL3 KACO blueplanet 150 TL3
Page 88
EN-US