Current Derating As A Function Of The Pulse Frequency - Siemens SINAMICS G150 Operating Instructions Manual

Technical specifications
12.2 General data
12.2.1.3

Current derating as a function of the pulse frequency

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 data for the cabinet units.
Table 12- 6 Derating factor of the output current as a function of the pulse frequency
Article no. Type rating
6SL3710-... [kW]
2GH41-8EA3 1750
2GH42-0EA3 1950
2GH42-2EA3 2150
2GH42-4EA3 2400
2GH42-7EA3 2700
Note
Derating factors for pulse frequencies in the range between fixed values
For pulse frequencies in the range between the specified fixed values, the relevant derating
factors can be determined by linear interpolation.
650
Output current
at 1.25 kHz
[A] 2 kHz
Supply voltage 3 AC 660 ... 690 V
1740 92%
1940 91%
2150 87%
2390 87%
2685 91%
Derating factor at the pulse frequency
2.5 kHz 4 kHz
87% 67%
86% 64%
79% 55%
79% 55%
86% 64%
Operating Instructions, 07/2016, A5E03347396A
5 kHz 7.5 kHz
55% 33%
50% 30%
40% 25%
40% 25%
50% 30%
Converter cabinet units