Kaco 1000335, Руководство пользователя

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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 voltage drop at the inductive and capacitive
components of the equipment which can either bolster or reduce the level of voltage. If the generating plant draws in-
ductive 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 specification 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 apparent 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
N
220 V / 380
V; 230 V / 400 V; 240 V / 415 V
Voltage - devices with U
N:
277V / 480V Maximum apparent power [p.u.]
≥ 400 ≥ 480 1.04
390 468 1.04
380 456 1.0
360 432 0.95
342 412 0.90
323 388 0.85
Tab. 6: 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
N
220/380, 230/400, 240/415.
1
P [p.u.]
Q [P.u]
0,6
0,4
0,2
0
1
0,8
1,2
0,6
0,6 1 0,0
above 390V
at 380V
at 360V
at 340V
underexcited overexcited
Fig. 41: P-Q operating range for Powador 39.0TL3, 40.0TL3,
60.0TL3
1
P [p.u.]
Q [P.u]
0,6
0,6 1 0,0
above 470V
at 455V
at 435V
at 410V
Fig. 42: P-Q operating range for Powador 48.0+72.0TL3
540
S [p.u. S
nom
]
U [V]
0,6
0,4
0,2
0
1
0,8
1,2
340 460
300 260
380 420 500
Over load capability
Nominal capability
OVRT
Under voltage
derating
UVRT
Fig. 43: Apparent power dependence of grid voltage
540
S [p.u. S
nom
]
U [V]
0,6
0,4
0,2
0
1
0,8
1,2
340 460 300 260 380 420 500
Over load capability
Nominal capability
O
V
R
T
Under voltage
derating
UVRT
Fig. 44: Apparent power dependence of grid voltage with U
N
277/480 V
Powador 30.0-72.0 TL3
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EN