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Siemens SINAMICS G180 - Voltage Derating

Siemens SINAMICS G180
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Technical data
C.12 Derating
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
207
Table C- 6 Current derating for air-cooled converters
Installation alti-
tude above sea
level in m
Current derating factor in % of rated current
20 °C
25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
55 °C
1)
0 … 1000
100 %
100 %
100 %
100 %
100 %
87,5 %
75,0 %
62,5 %
10011500
100 %
100 %
100 %
100 %
94,4 %
82,6 %
70,8 %
59,0 %
15012000
100 %
100 %
99,4 %
94,3 %
88,9 %
77,8 %
66,7 %
55,6 %
20012500
2)
100 %
97,7 %
93,2 %
88,4 %
83,3 %
72,9 %
62,5 %
52,1 %
25013000
2)
95,3 %
91,2 %
87,0 %
82,5 %
77,8 %
68,1 %
58,3 %
48,6 %
30013500
2)3)
89,8 %
86,0 %
82,0 %
77,8 %
73,3 %
64,2 %
55,0 %
45,8 %
35014000
2)3)
84,4 %
80,8 %
77,0 %
73,1 %
68,9 %
60,3 %
51,7 %
43,1 %
40014500
2)3)
78,9 %
75,6 %
72,1 %
68,4 %
64,4 %
56,4 %
48,3 %
40,3 %
4501 … 5000
2)3)
73,5 %
70,4 %
67,1 %
63,6 %
60,0 %
52,5 %
45,0 %
37,5 %
1)
Applies only to compact devices which are not installed in a cabinet
2)
Voltage derating must also be implemented for compact devices at an installation altitude of > 2000 m.
3)
Voltage derating must also be implemented for cabinet units at an installation altitude of > 3000 m.
The following current derating values apply to water-cooled converters. Refer to the technical
data sheet for the maximum water intake temperature.
Table C- 7 Current derating for water-cooled converters with a maximum water inlet temperature of 28 °C
Installation altitude
above sea level in
m
Current derating factor in % of rated current
18 °C
23 °C
28 °C
33 °C
38 °C
0 … 1000
100 %
100 %
100 %
84,0 %
64,2 %
10011500
100 %
100 %
94,4 %
79,3 %
60,6 %
15012000
100 %
100 %
88,9 %
74,7 %
57,0 %
20012500
100 %
94,8 %
83,3 %
70,0 %
53,5 %
25013000
98,0 %
88,5 %
77,8 %
65,3 %
49,9 %
30013500
1)
92,4 %
83,4 %
73,3 %
61,6 %
47,1 %
35014000
1)
86,8 %
78,4 %
68,9 %
57,9 %
44,2 %
40014500
1)
81,2 %
73,3 %
64,4 %
54,1 %
41,4 %
45015000
1)
75,6 %
68,3 %
60,0 %
50,4 %
38,5 %
1)
Voltage derating must also be implemented for cabinet units at an installation altitude of > 3000 m.

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