KACO blueplanet 750 - 1000 kVA - Manual (Page 99)

KACO blueplanet 1000/875/750 TL3 M1 IS OD DEX0 Page 99
Parameters
Power derating is enabled or disabled by an output of state machine which is decided by 4 inputs. And while
the output of state machine is 1, a decreasing rate affects an output power.
A decreasing rate is calculated by multiplying factor K ({Power Derating P Gain}) and a difference between refer-
ence temperature ({Power Derating Reference Temperature}) and PEBB heatsink temperature}.
An output of state machine depends on the state in which state machine is running. A transfer between states
happens when defined conditions are satisfied. Basically, if {Power Derating Enable} is 0, the state is “Disable”.
And If {Power Derating Enable} is 1, transfer is done according to PEBB heatsink temperature.
Following examples show power derating by default parameter.
Descriptions for sections of Example of Power Derating are:
T1: Inverter produces energy and PEBB temperature rises.
T2: When PEBB temperature is higher than 90°C, power derating is activated. And inverter controls output
power according to expression, P(%) =
100 -( T
PEBB
-80)x2 until power derating is deactivated.
T3: Output power decrease and PEBB temperature drops. When PEBB temperature is lower than 70°C, power
derating is deactivated. And inverter doesn’t decrease output power.