Current Derating As A Function Of Pulse Frequency - Siemens SINAMICS S120 Equipment Manual

3.7.2.4

Current derating as a function of 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 specifications in
Table 3-7.
Table 3-8
Order no.
6SL3315-...
1TE32-1AA0
1TE32-6AA0
1TE33-1AA0
1TE35-0AA0
Note
For pulse frequencies in the range between the specified fixed values, the relevant derating
factors can be determined by linear interpolation.
Chassis Power Units Liquid Cooled
SINAMICS S120 Equipment Manual, Edition 04/2007, 6SL3097-2AM00-0BP2
Derating factor of the output current as a function of the pulse frequency for devices with
a rated pulse frequency of 1.25 kHz
Power Output current at
[kW] pulse frequency of
2 kHz [A]
Supply voltage 380 – 480 V 3 AC
110 210
132 260
160 310
250 490
3.7 Technical specifications
Derating factor at Derating factor at
pulse frequency of pulse frequency of
4 kHz
82 %
83 %
88 %
78 %
Power Modules
8 kHz
50 %
55 %
50 %
50 %
3-17