Voltage rating mismatch between feeder allotted & installed Exhaust fan.

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SivajiSidhu

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Location
Hyderabad
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Electrical Engineer
Dear Sir/Madam,

We have a 480V feeder allotted for the Exhaust fan, but the voltage of the fan currently installed is 240V.
Can you please suggest what are the alternate solutions with economic way to feed the exhaust fan?
Is that the only way to change the fan with 480V rating?

Thank you,

Best Regards
Naga Sivaji G
 
SivajiSidhu said:
Dear Sir/Madam,

We have a 480V feeder allotted for the Exhaust fan, but the voltage of the fan currently installed is 240V.
Can you please suggest what are the alternate solutions with economic way to feed the exhaust fan?
Is that the only way to change the fan with 480V rating?

Thank you,

Best Regards
Naga Sivaji G
Click to expand...

I would assume that this is a large exhaust fan and belt driven? Here the most economic solution would be to change the drive motor to one rated for 480V.

It would help if you give a model number for the drive motor.
 
Either change the motor or add a transformer. Changing the motor is usually cheaper by the time you get done with all the other stuff needed for a transformer.

But first, double check the motor to make sure it cannot be reconnected as 460V. Look at the actual nameplate on the motor, not the fan assembly.
 
Jraef said:
But first, double check the motor to make sure it cannot be reconnected as 460V. Look at the actual nameplate on the motor, not the fan assembly.
Click to expand...

I was kind of wondering if this was a dual voltage motor but since the OP is in India you have to wonder what operating voltage it was designed for. May be from the UK or China.
 
growler said:
I would assume that this is a large exhaust fan and belt driven? Here the most economic solution would be to change the drive motor to one rated for 480V.

It would help if you give a model number for the drive motor.
Click to expand...

Thank you for your response.
Here is the Exhaust fan details.

"27 9/16"x27 9/16" 240VACV CORROSION RESISTANT MEDIUM PERFORMANCE
1-PHASE EXHAUST FAN"
 
Jraef said:
Either change the motor or add a transformer. Changing the motor is usually cheaper by the time you get done with all the other stuff needed for a transformer.

But first, double check the motor to make sure it cannot be reconnected as 460V. Look at the actual nameplate on the motor, not the fan assembly.
Click to expand...

Thank you for the response. Its helpful
 
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