Cooling, Turbines, Fans – CIRCUTOR AFQ Series User Manual
Page 65

AFQ-4W
Instruction Manual 65
5.2. COOLING TURBINES AND FANS
The cooling fans and turbines must work properly to avoid
overheating in the active filter components.
gives the number of fans and/or turbines required to cool the inductors
and the semiconductors according to the active filter model.
AFQ model
Inductor
cooling fans
IGBT cooling fans
IGBT cooling
turbines
AFQ-4W-25 A
3
2
-
AFQ-4W-50 A
3
4
-
AFQ-4W-100 A
3
-
1
AFQ-4W-150 A
6
-
2
AFQ-4W-200 A
6
-
2
Table 11 : Cooling components depending on the active filter model.
The following symptoms in the behaviour of the filter can indicate wear in the
fans or turbines:
Increased noise in the fan / turbine.
Increased temperature in the unit under the same environmental
conditions and load.
The AFQ-4W periodically indicates the temperature alarm.
If any sign of wear is detected, the affected fan/turbine should be replaced.
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