Fig. 98:
Formula for calculating the cos ϕ gradient (internal power gradient)
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 (S
lim
)
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 values will use S
lim
as 100% instead of S
max
.
Maximum active power
(P
lim
)
1 – 100 [% S
lim
]
Active power is limited globally to the configured value in % S
lim
.
10.4.2 Soft start up / power ramp-up limiting
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 possi-
ble to configure 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 protection, 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 fluc-
tuation in the available power or the target value, but at no time increases above the absolute power limit.
10.4.2.1 Parameters for soft start-up
Country-
spec. Set-
tings
Men
u
level
Display/
Setting
Action in this menu/meaning
4
1
2
3
4
Power ramp
NOTE: The power ramp allows a moderate increase of the Per-
formance possible.
Gradient
1 – 600 [% / min]
Gradient of power limit. The maximum power limit increase to 100% of
nominal power with the gradient specified.
After every connect
Soft start ramp up is activated for every connection of the inverter to
the grid.
After first connect
Soft start ramp up is activated for the first connection of the inverter to
the grid on a particular day or after complete reboot of the inverter (AC
and DC disconnected).
After grid error
Soft start ramp up is activated for connection of the inverter to the grid
after trip of the internal interface protection or via the external grid pro-
tection port (Powador-protect)
Manual
Specifications | 10
KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
Page 93
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