How can i construct a 3 phase 5 hp electric motor?
Best advice I can give is 'Buy one' you have not even specified what rpm you require.
The horse power rating at 3 phase or single phase is alike ,what will change is the frame type,that include the service facto. Answer The output power of a motor is determined by the power of the load that it has to drive. So, if you want to replace a 5 horsepower three-phase motor with a single-phase motor, then the single-phase motor must also be 5 horsepower.