Siemens SINAMICS S150 - Page 478

Technical specifications
12.2 General technical specifications
Drive converter cabinet units
478 Operating Instructions, 07/07, A5E00288214A
Voltage derating as a function of the site altitude
In addition to current derating, voltage derating must also be considered at site altitudes
>2,000 m above sea level.
Table 12-4 Voltage derating as a function of the site altitude (380 V – 480 V 3 AC)
Rated converter input voltage Site altitude
above sea level in m
380 V 400 V 420 V 440 V 460 V 480 V
0 to 2000 100 %
to 2250 100 % 96 %
to 2500 100 % 98 % 94 %
to 2750 100 % 98 % 94 % 90 %
to 3000 100 % 95 % 91 % 88 %
to 3250 100 % 97 % 93 % 89 % 85 %
to 3500 100 % 98 % 93 % 89 % 85 % 82 %
to 3750 100 % 95 % 91 % 87 % 83 % 79 %
to 4000 96 % 92 % 87 % 83 % 80 % 76 %
Table 12-5 Voltage derating as a function of the site altitude (660 V – 690 V 3 AC)
Rated converter input voltage
Site altitude
above sea level in m
660 V 690 V
0 to 2000 100 %
to 2250 100 % 96 %
to 2500 98 % 94 %
to 2750 94 % 90 %
to 3000 91 % 88 %
to 3250 89 % 85 %
to 3500 85 % 82 %
to 3750 - -
to 4000 - -
Table 12-6 Voltage derating as a function of the site altitude (500 V – 690 V 3 AC)
Rated converter input voltage
Site altitude
above sea level in m
500 V 525 V 575 V 600 V 660 V 690 V
0 to 2000 100%
to 2250 100% 96%
to 2500 100% 98% 94%
to 2750 100% 94% 90%
to 3000 100% 91% 88%
to 3250 100% 98% 89% 85%
to 3500 100% 98% 94% 85% 82%
to 3750 100% 94% 91% 83% 79%
to 4000 100% 91% 87% 80% 76%