KBR multicomp D6 7 Series - Page 72

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24905_EDEBDA0272-5019-1_EN
72
System operationSystem operation
Example schematic diagram:
Un
von
from
bis
to
U Ph-Ph
Hyst.
A
B
Ziel-Q/Pnenn
target Q/P rated
0,33
0,33
Q/Pn1Bezug
Q/P rated1 incomming
untererregt
under-exited
(induktiv
inductiv
übererregt
over-exited
(kapazitiv
capactiv)
bis
to
von
from
Un
von
from
bis
to
U Ph-Ph
bis
to
von
from
400 V
360 V 380 V 420 V 440 V
10V Ph-Ph
90%
95%
100%
105%
110%
= 0,00
Mode P 3 Q/P rated (change by active power curve):
With the setting P 3 Q (change by active power curve), the Q/Pn value is determined by
means of a congurable curve. The P value (total active power) is determined through the
main current transformer by three-phase projection. The parameters refer to Pn (rated
active power of the power plant).
The Q/Pn2 value (power recovery) has no function in this mode.
The Q/Pn1 value (power consumption) is used for the baseline between the adaption
ramps. A hysteresis can be programmed using the “hyst.” parameter.
The transition to the new Q/Pn value can be attenuated using the “t-delay” parameter.
New values are adopted once per second.
Example 1: Reactive power curve as a function of performance Q (P)