Motor Voltage And Supply Voltage
Motor Voltage And Supply Voltage
(OP)
Dear Anyone,
I have a situation;
We are supplying 415V motor for ventilation fan which is capable of move out 23,000 CFM of air. In this case, if we only got supply of 400V, does it affect the CFM rating?
Or, does the motor itself have it own Voltage Range that can accept the 400V to maintain the CFM?
Thanks.
I have a situation;
We are supplying 415V motor for ventilation fan which is capable of move out 23,000 CFM of air. In this case, if we only got supply of 400V, does it affect the CFM rating?
Or, does the motor itself have it own Voltage Range that can accept the 400V to maintain the CFM?
Thanks.





RE: Motor Voltage And Supply Voltage
Motors just turn at their designed frequency. If you mess with the voltage they will draw more or less current in an attempt to keep the same speed.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor Voltage And Supply Voltage
Generaly I believe a motor is happy running within +/- 10% of its rated voltage.
What about current is there a comfortable +/- range
for FLA of motors? Where do you like to see a motor
at? When do the red flags come out?
Thanks for your time.
RE: Motor Voltage And Supply Voltage
Roy