Technical Data 11/03
SINAMICS G150
12-4 Operating Manual
Voltage Derating as a Function of the Site Altitude
In addition to current derating, voltage derating must also be considered at site
altitudes >2000 m above sea level.
Table 12-4 Voltage derating as a function of the site altitude, 380 V - 480 V
Rated converter input voltage Site altitude above
sea level in m
Max. input voltage
in V
380 V 400 V 420 V 440 V 460 V 480 V
0 to 2000 480
Up to 2250 461 96%
Up to 2500 451 98% 94%
Up to 2750 432 100% 98% 94% 90%
Up to 3000 422 95% 91% 88%
Up to 3250 408 97% 93% 89% 85%
Up to 3500 394 98% 93% 89% 85% 82%
Up to 3750 380 95% 91% 87% 83% 79%
Up to 4000 365 96% 92% 87% 83% 80% 76%
Table 12-5 Voltage derating as a function of the site altitude, 660 V - 690 V
Rated converter input voltage Site altitude above
sea level in m
Max. input voltage
in V
660 V 690 V
0 to 2000 690 100%
Up to 2250 660 96%
Up to 2500 648 98% 94%
Up to 2750 621 95% 90%
Up to 3000 607 92% 88%
Up to 3250 586 89% 85%
Up to 3500 565 85% 82%
Up to 3750 545 83% 79%
Up to 4000 524 80% 76%
12.3 Technical Data
NOTE
The current, voltage, and output values specified in the following tables are rated
values.
The cables to the cabinet unit are protected with fuses with gL characteristic.
The connection cross-sections are calculated for three-core copper cables installed
horizontally in free air at an ambient temperature of 30 °C (86 °F) (in accordance
with DIN VDE 0298 Part 2 / Group 5) and the recommended line protection in
accordance with DIN VDE 0100 Part 430.
AWG (American Wire Gauge for cross-sections < 120 mm²); MCM (Mille Circular
Mil): American wire gauge for cross-sections > 120 mm².
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