10.4.2.1 Parameters for soft start-up
Country-
spec.
Settings
Men
u
leve
l
Display/
Setting
Action in this menu/meaning
Power ramp
NOTE:Power rampup is used to ramp up the powre gradually
Gradient
1 – 600 [% / min]
Gradient of power limit. The maximum power limit increase to 100% of
nominaql power with the gradient specified.
Power rampup after
every connect
Soft start ramp up is activated for every connection of the inverter to
the grid.
Power Rampup after
first connect
Soft start ramp up is activated for the first connection of the inverter to
the grid on a particular day after complete reboot of the inverter (AC
and DC disconnected).
Power rampup 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).
10.4.3 Normal operation power gradient
In the case of very large plants, it may also be necessary to restrict the change in power level during
normal operation. If the set value (for increase and decrease in power level) and the solar irradiation
change (for increase in power level), then the grid feed-in power is increased or decreased in line with
the configured gradient. A limitation is not possible if the solar irradiation is reduced.
This function isn’t active for changes in the power, which are defined by another grid support action
such as the return of power after Fault Ride Through, P(f), P(U).
10.4.3.1 Normal operation power gradient
Country-
spec.
Settings
Men
u
leve
l
Display/
Setting
Action in this menu/meaning
Operating mode
On/Off
Activate or disable the power gradient limtitation in normal operation
Increasing gradient
1-65534 [% S
max
/ min]
The change in the active power is limited to a configured power increase
gradient
Falling gradient
1 – 65534 [% S
max
/ min]
The change in the active power is limited to a configured power de-
crease gradient.
10.5 Advanced islanding detection
Due to decentralized generation, there is the possibility that a deactivated part of the grid will remain
live in an unintended island due to the balance of load and generation in this part of the grid. The de-
tection of unintended island formation is an important function of decentralized generating units and is
related to the prevention of damage to equipment as well as safety of personnel.
Depending on the structure and the operation of the distribution grid several dangers exist:
– In case of maintenance work in a distribution grid, personnel may be placed in danger if the deacti-
vated part of the grid remains live as an island. This is especially the case if not all safety rules are
followed.
– If fast auto-reclosure is used in a distribution grid and the deactivated part of the grid remains live
as an island, reclosure will likely happen during phase displacement which might cause damage to
rotating machinery on the grid.
10 | Specifications Manual
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 105 TL3 KACO blueplanet 110 TL3
KACO blueplanet 125 TL3 KACO blueplanet 137 TL3 KACO blueplanet 150 TL3 KACO blueplanet 155 TL3
KACO blueplanet 165 TL3
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