SINAMICS G150 converter cabinet units and the associated system components are rated for an ambient temperature of 40 °C and installation altitudes up to 2000 m above sea level.
At ambient temperatures > 40 °C, the output current must be reduced. Ambient temperatures above 50 °C are not permissible.
At installation altitudes > 2000 m above sea level, it must be taken into account that the air pressure, and therefore air density, decreases as the height increases. As a consequence, the cooling efficiency and the insulation capacity of the air also decrease.
Due to the reduced cooling efficiency, it is necessary, on the one hand, to reduce the ambient temperature and on the other hand, to lower heat loss in the converter cabinet unit by reducing the output current, whereby ambient temperatures lower than 40 °C may be offset to compensate.
The following table lists the permissible output currents depending on the installation altitude and ambient temperature for the various degrees of protection. The specified values already include a permitted compensation in respect of installation altitude and ambient temperatures < 40 °C (temperature at the air intake of the converter cabinet unit).
The values apply under the precondition that it is guaranteed that the cooling air, as specified in the technical data, flows through the units as a result of the cabinet arrangement.
As additional measure for installation altitudes from 2000 m up to 5000 m, an isolating transformer is required in order to reduce transient overvoltages according to EN 60664?1.
For further information, please refer to the SINAMICS Low Voltage Engineering Manual.
Current-derating factors for converter cabinet units depending on the ambient / air intake temperature, the installation altitude and the degree of protection
Degree of protection
Installation altitude above sea level
Current derating factor (as a percentage of the rated current) for an ambient / air intake temperature of
m
20 °C
25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
IP20, IP21, IP23 and IP43
0 ... 2000
100%
100%
100%
100%
100%
93.3%
86.7%
2001 ... 2500
100%
100%
100%
100%
96.3%
2501 ... 3000
100%
100%
100%
98.7%
3001 ... 3500
100%
100%
100%
3501 ... 4000
100%
100%
96.3%
4001 ... 4500
100%
97.5%
4501 ... 5000
98.2%
IP54
0 ... 2000
100%
100%
100%
100%
93.3%
86.7%
80%
2001 ... 2500
100%
100%
100%
96.3%
89.8%
2501 ... 3000
100%
100%
98.7%
92.5%
3001 ... 3500
100%
100%
94.7%
3501 ... 4000
100%
96.3%
90.7%
4001 ... 4500
97.5%
92.1%
4501 ... 5000
93%
Current derating depending on the pulse frequency
To reduce motor noise or to increase output frequency, the pulse frequency can be increased relative to the factory setting (1.25 kHz or 2 kHz). When the pulse frequency is increased, the derating factor of the output current must be taken into account. This derating factor must be applied to the currents specified in the technical specifications.
For further information, please refer to the SINAMICS Low Voltage Engineering Manual.
Derating factor of the output current depending on the pulse frequency for devices with a rated pulse frequency of 2 kHz
SINAMICS G150
Type rating
Output current
at 2 kHz
Derating factor for pulse frequency
6SL3710-...
kW
A
2.5 kHz
4 kHz
380 ... 480 V 3 AC
1GE32-1 . A3
110
210
95%
82%
1GE32-6 . A3
132
260
95%
83%
1GE33-1 . A3
160
310
97%
88%
1GE33-8 . A3
200
380
96%
87%
1GE35-0 . A3
250
490
94%
78%
Derating factor of the output current depending on the pulse frequency for devices with a rated pulse frequency of 1.25 kHz
SINAMICS G150
Type rating
Output current
at 1.25 kHz
Derating factor for pulse frequency
6SL3710-...
kW
A
2 kHz
2.5 kHz
4 kHz
380 ... 480 V 3 AC
1GE36-1 . A3
315
605
83%
72%
64%
1GE37-5 . A3
400
745
83%
72%
64%
1GE38-4 . A3
450
840
87%
79%
64%
1GE41-0 . A3
560
985
92%
87%
70%
2GE41-1AA3
630
1120
83%
72%
64%
2GE41-4AA3
710
1380
83%
72%
64%
2GE41-6AA3
900
1560
87%
79%
64%
500 ... 600 V 3 AC
1GF31-8 . A3
110
175
92%
87%
70%
1GF32-2 . A3
132
215
92%
87%
70%
1GF32-6 . A3
160
260
92%
88%
71%
1GF33-3 . A3
200
330
89%
82%
65%
1GF34-1 . A3
250
410
89%
82%
65%
1GF34-7 . A3
315
465
92%
87%
67%
1GF35-8 . A3
400
575
91%
85%
64%
1GF37-4 . A3
500
735
87%
79%
64%
1GF38-1 . A3
560
810
83%
72%
61%
2GF38-6AA3
630
860
92%
87%
67%
2GF41-1AA3
710
1070
91%
85%
64%
2GF41-4AA3
1000
1360
87%
79%
64%
660 ... 690 V 3 AC
1GH28-5 . A3
75
85
93%
89%
71%
1GH31-0 . A3
90
100
92%
88%
71%
1GH31-2 . A3
110
120
92%
88%
71%
1GH31-5 . A3
132
150
90%
84%
66%
1GH31-8 . A3
160
175
92%
87%
70%
1GH32-2 . A3
200
215
92%
87%
70%
1GH32-6 . A3
250
260
92%
88%
71%
1GH33-3 . A3
315
330
89%
82%
65%
1GH34-1 . A3
400
410
89%
82%
65%
1GH34-7 . A3
450
465
92%
87%
67%
1GH35-8 . A3
560
575
91%
85%
64%
1GH37-4 . A3
710
735
87%
79%
64%
1GH38-1 . A3
800
810
83%
72%
61%
2GH41-1AA3
1000
1070
91%
85%
64%
2GH41-4AA3
1350
1360
87%
79%
64%
2GH41-5AA3
1500
1500
83%
72%
61%
2GH41-8EA3
1750
1729
92%
87%
67%
2GH42-0EA3
1950
1948
91%
86%
64%
2GH42-2EA3
2150
2158
87%
79%
55%
2GH42-4EA3
2400
2413
87%
79%
55%
2GH42-7EA3
2700
2752
91%
86%
64%
Overload capability
The SINAMICS G150 converter cabinet units have an overload reserve in order to overcome breakaway torques, for example. If larger surge loads occur, this must be taken into account in the configuration. For drives with overload requirements, the appropriate base load current must, therefore, be used as a basis for the required load.
The criterion for overload is that the drive is operated with its base load current before and after the overload occurs on the basis of a duty cycle duration of 300 s.
The base load current for a low overload IL is based on a duty cycle of 110% for 60 s or 150% for 10 s.
The base load current for a high overload IH is based on a duty cycle of 150% for 60 s or 160% for 10 s.
Low overload
High overload
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