How to install forced ventilation in a IP23 Motor
How to install forced ventilation in a IP23 Motor
(OP)
Hello All
We was requested for make a change in one IP23 Motor with following name plate: 450 kW, S1, 400 V, 750 A, 2965/min.Frame 315.
Like you can see at Photos the motor is designed with internal fan cooling, so we think is possible to install some forced ventilation like in DC motors.
All Ideas are wellcomen, pro and cons
Thanks for the inputs
Carlos
We was requested for make a change in one IP23 Motor with following name plate: 450 kW, S1, 400 V, 750 A, 2965/min.Frame 315.
Like you can see at Photos the motor is designed with internal fan cooling, so we think is possible to install some forced ventilation like in DC motors.
All Ideas are wellcomen, pro and cons
Thanks for the inputs
Carlos





RE: How to install forced ventilation in a IP23 Motor
1. Cost of externally driven fan
2. Lost of supply to this fan leads to loss of motor cooling
3. Additional power cost to run this fan
4. Cost of maintenance of this external fan
Pros
....
Muthu
www.edison.co.in
RE: How to install forced ventilation in a IP23 Motor
What kind of change? Change of number of poles?
Zlatkodo
RE: How to install forced ventilation in a IP23 Motor
We are going to do the following:
1. Remove the internal fan
2. To install a blower over the large exhaust opening to blow air in the opposite of the original direction.(Before: NDE to DE)
3. Calculate the CFM for the new Fan, taking account one rule of thumb of 100 cfm of air per kW of losses, for it we will assume 92% efficiency.
450 KW x 0.08 = 36 kW losses.
36 x 100 = 3600 cfm
4. close all exhauts in NDE side to avoid air looses.
Regards
Carlos