Cabinet design and EMC
12.8 Note on control cabinet cooling
SINAMICS S120 Combi
Manual, 11/2017, 6SL3097-4AV00-0BP7
303
Table 12- 21 Overview of the coefficients to calculate the total power loss P
V
in the partial-load range
16 kW / 18 A 36 19.2 11.05 7.1 6.5 6.5 -
20 kW / 30 A 36 19.2 11.5 7.3 7.2 7.2 -
1)
1)
For a pulse frequency of 4 kHz / 8 kHz
Table 12- 22 Overview of the coefficients to calculate the power loss P
V
in the control cabinet for external cooling
1)
1)
For a pulse frequency of 4 kHz / 8 kHz
Losses in the partial-load range for line reactors
The losses of the line reactors in partial-load operation can be calculated using the following
formula:
P
V
= D1 * P1
D1: Coefficient to calculate the power loss
P1: Infeed power [kW]
Table 12- 23 Overview of the coefficients to calculate the power loss P
V
in the partial-load range
6SL3100-0EE21-6AA0 (10 kW)
6SL3100-0EE21-6AA0 (16 kW)
6SL3100-0EE22-0AA0 (20 kW)