KBR multicomp F144-3PH
V2.00
8
19837_EDEBD
A0227-1816-1_EN
Range of functions
2
Description of functions
of the multicomp F144-3PH
The multicomp F144-3PH LCD reactive power controller works automatically in
4-quadrant operation (generator operation), i.e. even with energy recovery to
the utility company network, missing compensation power is detected without
a problem and compensated.
The control type of the device is optimizing, i.e. the controller selects the
switching stage with the suitable compensation capacity according to the
missing compensation power. The "circuit switching" and "combination filter"
switching schedules are not provided for.
By using the "maximum switching power per switching operation" parameter
(menu Extra / Commissioning / max. switching power), you can define how
many kvar the controller can switch (on and off) at the same time. This enables
faster compensation. If the set value is smaller than the largest switching stage
available, the value of the largest stage is automatically used as the switching
criterion.
Through the integrated temperature measurement input, the ambient tem-
perature in the reactive power compensation unit is also monitored, and if a
predefined limiting temperature is exceeded, the ventilator is switched on. Fur-
thermore, you can protect the system by setting an alarm / switch-off tempera-
ture which switches it off if there is a risk of damage due to overtemperature.
The controller is additionally equipped with a limit monitoring function for pro-
tection of capacitors from overvoltage and excessive harmonic load of voltage
and current.
The 3-phase voltage and current recording makes it possible to not only realize
3-phase compensation as before, but also real single-phase compensation
(balancing) or a mixture of single-phase and 3-phase compensation.
In general, the total missing power Qf (sum of the missing power of phases L1,
L2 and L3) is always used as the measuring value for switching on or off com-
pensation stages. This means that if Qf has an inductive value, capacitor stages
are switched off or inductor stages are switched on. If Qf has a capacitive value,
capacitor stages are switched on or inductor stages are switched off.
In this context, it is possible to separately configure 3-phase, phase-phase and
single-phase stages for each of the 18 existing compensation stages. Further-
more, it is also possible to operate a compensation system with capacitive
stages only, inductive stages only or in mixed mode.
For 3-phase measurement, the measuring values are displayed separately per
phase, making it possible to evaluate the actual power supply conditions in
detail.