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Siemens SINAMICS G180
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Technical data
C.12 Derating
Installation and Operating Instructions SINAMICS G180
208 Operating Instructions, 02/2019, 4BS0751-007
Table C- 8 Current derating for water-cooled converters with a maximum water inlet temperature of 30 °C
Installation altitude
above sea level in
m
Current derating factor in % of rated current
20 °C
25 °C
30 °C
35 °C
40 °C
0 … 1000
100 %
100 %
100 %
81,6 %
57,7 %
10011500
100 %
100 %
94,4 %
77,1 %
54,5 %
15012000
100 %
100 %
88,9 %
72,6 %
51,3 %
20012500
100 %
96,2 %
83,3 %
68,0 %
48,1 %
25013000
100 %
89,8 %
77,8 %
63,5 %
44,9 %
30013500
1)
94,7 %
84,7 %
73,3 %
59,9 %
42,3 %
35014000
1)
88,9 %
79,5 %
68,9 %
56,2 %
39,8 %
40014500
1)
83,2 %
74,4 %
64,4 %
52,6 %
37,2 %
45015000
1)
77,5 %
69,3 %
60,0 %
49,0 %
34,6 %
1)
Voltage derating must also be implemented for cabinet units at an installation altitude of > 3000 m.
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
Current derating factor in % of rated current
25 °C
30 °C
35 °C
40 °C
0 … 1000
100 %
100 %
100 %
70,7 %
10011500
100 %
100 %
94,4 %
66,8 %
15012000
100 %
100 %
88,9 %
62,9 %
20012500
100 %
100 %
83,3 %
58,9 %
25013000
100 %
95,3 %
77,8 %
55,0 %
30013500
1)
100 %
89,8 %
73,3 %
51,9 %
35014000
1)
97,4 %
84,4 %
68,9 %
48,7 %
40014500
1)
91,1 %
78,9 %
64,4 %
45,6 %
45015000
1)
84,9 %
73,5 %
60,0 %
42,4 %
1)
Voltage derating must also be implemented for cabinet units at an installation altitude of > 3000 m.

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