V2.00
19837_EDEBD
A0227-2620-1_EN
8
Functions
2
Description of functions of the multicomp F144-3PH
The multicomp F144-3PH 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 .
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 temperature in
the reactive power compensation system is also monitored and if a predefined limit tem-
perature is exceeded, the fan is switched on . Furthermore, you can protect the system by
setting an alarm / switch-off temperature 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 protection 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 mix-
ture of single-phase and 3-phase compensation .
In this context, it is possible to separately configure 3-phase, phase-phase and sin-
gle-phase stages for each of the 18 existing compensation stages .
Furthermore, 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 . For sin-
gle-phase measurement, the measuring values of the phase measured are displayed but
the power values are additionally projected as total power .
By using an additional digital input, it is possible to activate a second deviating target
CosPhi .
Furthermore, the device is equipped with a RS485 bus interface for operation at the KBR
eBus with the visual energy computer software . This enables comfortable visualization of
the measuring values and the controller's operating state as well as convenient configu-
ration of the device via the primary control unit .