Specifications; Reactive Power Control; Operating Power Range Depending On Grid Voltage - Kaco blueplanet 29.0TL3 Serie Manual

10 | Specifications

10 Specifications

10.1 Reactive power control

Reactive power can be used in electrical energy supply networks to bolster the level of voltage. As
such, feed-in inverters can contribute to statistical voltage stability. Reactive power brings about a vol-
tage drop at the inductive and capacitive components of the equipment which can either bolster or re-
duce the level of voltage. If the generating plant draws inductive reactive power while active power is
being fed in, part of the voltage swing caused by the active power feed can be compensated for by the
supply of reactive power.
This reactive power mode and the respective control process are specified by the grid operator. If no
control process has been specified, then the system should be operated using a reactive power speci-
fication of 0%.

10.1.1 Operating power range depending on grid voltage

The device can be operated within the respective fixed voltage range provided. The maximum appa-
rent power is stated in the following table. In the event of undervoltage determined by the maximum
continuous current subject to the grid voltage.
Voltage - devices with U
V / 380 V; 230 V / 400 V; 240 V /
415 V
≥ 400
390
at 380
at 360
Tab. 4: Maximum continuous apparent power depending on grid voltage
The following figures show the reactive power-active power operating range for devices with a nominal
voltage of U 220/380, 230/400, 240/415.
N
P [p.u.]
1,2
1
0,8
0,6
0,4
0,2
0
1 0,6
0,0
underexcited
Fig. 43: P-Q operating range for blueplanet 50.0TL3
P [p.u.]
1,2
1
0,8
0,6
0,4
0,2
0
0,6
1
0,0
underexcited
Fig. 45: P-Q operating range for blueplanet 50.0TL3
Página 60
220 Voltage - devices with U
N
V / 480 V
≥ 480
468
456
432
above 390V
at 380V
at 360V
0,6 1
Q [P.u]
overexcited
above 390V
at 380V
at 360V
0,6 1
Q [P.u]
overexcited
Manual
277 Maximum apparent power
N:
[p.u.]
1.04
1.04
1.0
0.95
S [p.u. S ]
nom
1,2
Over load capability
1
0,8
0,6
OVRT
Nominal capability
0,4
0,2
0
540 500 460 420 380
Fig. 44: Apparent power dependence of grid voltage
Fig. 46: Apparent power subject to the grid voltage for devi-
ces with UN 277/480 V
Under voltage
UVRT
derating
340 300 260 U [V]
Kaco blueplanet 29.0TL3