Power Losses; Power Losses As Function Of Switching Frequency - Vacon NX_ 0003 5 User Manual

40 • vacon
5.3

Power losses

5.3.1

Power losses as function of switching frequency

If the operator wants to raise the switching frequency of the drive for some reason (typically e.g. in order to
reduce the motor noise), this inevitably affects the power losses and cooling requirements according to the
graphs below.
200,00
180,00
160,00
140,00
120,00
100,00
80,00
60,00
40,00
20,00
0,00
0,00 2,00
0003NX5 400V
0009NX5 400V
Figure 5-13. Power loss as function of switching frequency; NX_5 0003...0012
900,00
800,00
700,00
600,00
500,00
400,00
300,00
200,00
100,00
0,00
0,00 2,00
0016NX5 400V
0031NX5 400V
Figure 5-14. Power loss as function of switching frequency; NX_5 0016...0031
5
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4,00 6,00 8,00
Switching frequency [kHz]
0004NX5 400V 0005NX5 400V
0012NX5 400V
4,00 6,00 8,00
Switching frequency [kHz]
0016NX5 500V 0022NX5 400V
0031NX5 500V
10,00 12,00 14,00
0007NX5 400V
10,00 12,00 14,00
0022NX5 500V
INSTALLATION
16,00
16,00