Siemens SINAMICS G180 Installation And Operating Instructions Manual page 184

Technical data
C.12 Derating
Table C-7 Current derating for water-cooled inverters with a maximum water inlet temperature of 28 °C
Installation altitude Current derating factor in % of rated current
above sea level in
18 °C
m
0 ... 1000 100 %
1001 ... 1500 100 %
1501 ... 2000 100 %
2001 ... 2500 100 %
2501 ... 3000 98.0 %
3001 ... 3500 92.4 %
1)
3501 ... 4000 86.8 %
1)
4001 ... 4500 81.2 %
1)
4501 ... 5000 75.6 %
1)
Voltage derating must also be implemented for cabinet units at an installation altitude of > 3000 m.
1)
Table C-8 Current derating for water-cooled inverters with a maximum water inlet temperature of 30 °C
Installation altitude Current derating factor in % of rated current
above sea level in
20 °C
m
0 ... 1000 100 %
1001 ... 1500 100 %
1501 ... 2000 100 %
2001 ... 2500 100 %
2501 ... 3000 100 %
3001 ... 3500 94.7 %
1)
3501 ... 4000 88.9 %
1)
4001 ... 4500 83.2 %
1)
4501 ... 5000 77.5 %
1)
Voltage derating must also be implemented for cabinet units at an installation altitude of > 3000 m.
1)
Table C-9 Current derating for water-cooled inverters with a maximum water inlet temperature of 35 °C
Installation altitude
above sea level in m
0 ... 1000
1001 ... 1500
1501 ... 2000
2001 ... 2500
2501 ... 3000
3001 ... 3500
1)
3501 ... 4000
1)
182
23 °C
100 %
100 %
100 %
94.8 %
88.5 %
83.4 %
78.4 %
73.3 %
68.3 %
25 °C
100 %
100 %
100 %
96.2 %
89.8 %
84.7 %
79.5 %
74.4 %
69.3 %
Current derating factor in % of rated current
25 °C
100 %
100 %
100 %
100 %
100 %
100 %
97.4 %
28 °C
100 %
94.4 %
88.9 %
83.3 %
77.8 %
73.3 %
68.9 %
64.4 %
60.0 %
30 °C
100 %
94.4 %
88.9 %
83.3 %
77.8 %
73.3 %
68.9 %
64.4 %
60.0 %
30 °C
100 %
100 %
100 %
100 %
95.3 %
89.8 %
84.4 %
33 °C
84.0 %
79.3 %
74.7 %
70.0 %
65.3 %
61.6 %
57.9 %
54.1 %
50.4 %
35 °C
81.6 %
77.1 %
72.6 %
68.0 %
63.5 %
59.9 %
56.2 %
52.6 %
49.0 %
35 °C
100 %
94.4 %
88.9 %
83.3 %
77.8 %
73.3 %
68.9 %
Installation and operating instructions Sinamics G180
Operating Instructions, 05/2013, 4BS0751-001
38 °C
64.2 %
60.6 %
57.0 %
53.5 %
49.9 %
47.1 %
44.2 %
41.4 %
38.5 %
40 °C
57.7 %
54.5 %
51.3 %
48.1 %
44.9 %
42.3 %
39.8 %
37.2 %
34.6 %
40 °C
70.7 %
66.8 %
62.9 %
58.9 %
55.0 %
51.9 %
48.7 %