Can a single phase single speed 1.5hp induction motor run on both 50 and 60 hz 115 volts
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Discuss Electric ac induction motor 50hz to 60hz? in the UK Electrical Forum area at ElectriciansForums.net
Unlikely to stall.Unfortunately I don't have the name plate I threw the motor away. I also read a 50hz operating on 60hz can cause the motor to stall
Yes it's a swimming pool pumpIt depends what it's driving. The motor itself will usually be OK, so long as the load is still correct , although it will run 17% fast.
What might make the difference is whether it coupled to a load that is designed for 1425rpm that will then demand an increased torque at the higher speed. E.g. If it is coupled to a centrifugal pump, because the pump torque/speed curve is typically a close approximation to a square law, the pump might demand a torque increase of (60/50)² = 44% extra torque and therefore 73% extra hp, which might overload the motor unless it was generously specced for 50Hz operation.
Is this, in fact, a pump? Or what is the application?
Are inverter drives costlyFor a pump I think you would have to ask the manufacturers, or do some detailed calculations from the curves. The pump might put too much mechanical load on the motor due to the extra speed. I don't know about pool pumps but it is possible that there are different impellers for 1425rpm and 1725rpm versions of the same pump.
I would ask their advice before investing in an inverter drive.
Not any more.Are inverter drives costly
Google the kw volts and vfd/vsd.How would I size one for this motor?
1KW/1.5Hp
220V/1Ph/50Hz
To run on 60Hz
1.25kva 220v 50hz input 60hz output
Thanks
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