Siemens SINAMICS G180 Installation And Operating Instructions Manual page 210

Inverters - compact units, cabinet systems, cabinet units air and liquid cooled
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Technical data
C.12 Derating
Table C- 8
Current derating for water-cooled converters 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 converters 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)
4001 ... 4500
1)
4501 ... 5000
1)
Voltage derating must also be implemented for cabinet units at an installation altitude of > 3000 m.
1)
208
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
30 °C
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
95,3 %
100 %
89,8 %
97,4 %
84,4 %
91,1 %
78,9 %
84,9 %
73,5 %
30 °C
35 °C
100 %
81,6 %
94,4 %
77,1 %
88,9 %
72,6 %
83,3 %
68,0 %
77,8 %
63,5 %
73,3 %
59,9 %
68,9 %
56,2 %
64,4 %
52,6 %
60,0 %
49,0 %
35 °C
100 %
94,4 %
88,9 %
83,3 %
77,8 %
73,3 %
68,9 %
64,4 %
60,0 %
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
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 %
45,6 %
42,4 %

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