Extract From Frt Menu - Kaco blueplanet 29.0TL3 Serie Manual

10 | Specifications
For the positive and negative phase sequence voltage, Δu equates to the difference between the pre-
fault voltage and the current voltage based on the reference voltage. The pre-fault voltage is calcula-
ted as a 1-min mean value.
Fig. 63: Formula no. 3
On account of the definition of a voltage jump in pre-norm EN50549-2 and in VDE-AR-N 4120 and
VDE-AR-N 4110, it is typically the case that another voltage jump is detected when the incident is at
an end, when the fault is rectified and when the voltage returns to a normal state. The result of this is
that in an active operation mode a dynamic grid support using a fast feeding of residual current re-
mains active even after the incident has passed and that reactive current is fed in according to the for-
mulae (2) and (3). Dynamic grid support using fast feeding of residual current is then deactivated after
a configured minimum support time, usually 5 s.
I
b
1
Fig. 64: Formula no. 4

10.3.3 Extract from FRT menu

Country- Me- Display/
spec. nu Setting
Settings le-
vel
FRT (Fault Ride Th-
4 4
1 2 3
rough)
Modo de funcion. –
On | Off
Ajustes | Manual |Co-
rriente cero predefini-
da
Prioridad – Limitación
de corriente reactiva |
Prioridad corriente act.
Zero current undervol-
tage threshold
Energía total
0 – 184 V / 253 – 340
V
Tensión de ref.
U< - U>
Página 72
I
Action in this menu/meaning
AVISO: The device supports dynamic grid stabilization (Fault
Ride-Through).
Setting: Manual
All parameters can be configured independently.
Setting: Predefined zero current
Dynamic grid support active on account of immunity to interference and
zero current feed-in. During a voltage incident, the current in the inver-
ter is reduced to zero.
All parameters are pre-configured, only the activation threshold for zero
current has to be configured.
Priority: Reactive current priority
Dynamic grid support active on account of immunity to interference and
fast feeding of residual current. The inverter feeds additional reactive
current according to the formulae (2) and (4).
Priority: Effective current priority
Dynamic grid support active on account of immunity to interference and
fast feeding of active current with dynamic reactive current. The inver-
ter feeds in as much active power as available. If, as a result of this, the
maximum continuous current is not achieved, the device supplies addi-
tional reactive current according to the formulae (2) and (4) up to the li-
mit of continuous current.
If one or more phase/phase or phase/neutral conductor voltages move
above the configured threshold, the inverter changes to zero current
mode. The total current is regulated to virtually zero.
Nominal value of the phase/neutral conductor voltage used as a refe-
rence voltage for formula (1) and (3). Adjustable in the range from level
1 undervoltage protection to level 1 overvoltage protection.
Manual
Kaco blueplanet 29.0TL3