Kaco blueplanet 87.0 TL3 Manual page 78

Limitation of power gradients
The power reduction parameters can be adjusted in SunSpec model DID123. During this process, you should also check
whether internal and/or external power reduction is active.
Internal power limitation
Status = active
Maximum apparent power S
100000 VA
Maximum active power P = 80%
lim
(approx. 80000 W)
Tab. 9: Sample parameters for power limitation
If the ramp time "WMacLimPct_RvrtTms" in the SunSpec model is specified as 0 s, then the internal output gradient
is used. Otherwise, the set value will be used.
Irrespective of the communication protocol used, the settling time "WMaxLim_Ena" is used in order to transfer the new
power value. Otherwise, the internally configured value will be used.
The additional ramp time "WMacLimPct_RmpTms" specifies the jump time from a power value to the new power
value.
The following formulae are used to calculate the gradient S
Power / kVA resp. kW
S =100
lim
P =80
lim
P =60
fb
WMaxLimPct =40
Gradient = -600 % S
10 20 30 40
Fig. 85: Power gradient according to sample parameters and calculation
The following formulae are used to calculate the Q filter parameter and cos-phi gradient:
Fig. 86: Formula for calculating the Q filter parameter
Fig. 87: Formula for calculating the cos-phi gradient (internal power gradient)
10.2.2 Voltage-dependent power reduction P(U)
If it is not possible to compensate adequately for increase in voltage in the upstream distribution network by intake on re-
active power, it may be necessary to curtail the active power. In this case, P(U) control is available for making optimum
use of the capacity of the upstream grid.
Page 78
Parameters for external power limita-
tion
Status = active
=
lim
AC fallback active power Pfb = 75% P
(approx. 60000 W)
PT1 settling time = 1 s
/min
lim
Time / s
50 60 70
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
Parameters for power limitation
Parameters in SunSpec model 123:
"WMaxLimPct" = 50% P
"WMaxLimPct_RvrtTms" = 60 s
lim "WMacLimPct_RmpTms" = 2 s
"WMaxLim_Ena" = 1
:
lim/min
KACO blueplanet 137 TL3 KACO blueplanet 150 TL3
(approx. 40000 W)
lim