SD700FL SERIES
POWER ELECTRONICS
26
MECHANICAL INSTALLATION
The SD700FL filters frame 5 on have been designed in a modular way. Inside the modules, the
inductances generate heat, so each module presents an independent cooling system.
The modules integrate air inlet gratings in their front part. Behind them are placed axial fans that
allow blowing the fresh air to the hottest components (inductances and capacitors). The air
circulates inside the module to the top part, where a centrifugal fan extracts the hot air.
The maximum heat loses per module are 1% of the motor power.
Figure 5.9
Cooling airflow for SD700FL. Frames 5 to 11(Filter’s cooling)
Frame 1
Frame 2
Frame 3
Frame 4
Frame 5
INLET GRATING NET SECTION (m²)
0.00668
0.01375
0.01375
0.0264
0.02475
OUTLET GRATING NET SECTION (m²)
0.00743
0.0405
0.0513
0.0804
0.01925
MAXIMUM IN/OUT FLOW (m³/h)
70
135
165
300
550
