You would use a worm drive meshed with a gear that has 130 teeth.
11.5 x 240 = 2760W motor.
No you can't use a 415v motor in a 240 v socket.
That's a powerful motor, and would need a supply greater than 13 amps at 240 volts, also the conversion might be difficult. I have a feeling that you would be better off finding out how powerful a motor you would need for the task you have, then buying a suitable 240 volt motor. You are heading into territory where you should really consult a qualified electrician.
If it is a 240 v delta motor it needs a 240 v three-phase supply, which has 139 v between line and neutral, so 440 v would not be acceptable.
Answer for USA, Canada and countries running a 60 Hz supply service.Use one leg of the 240v and the neutral wire. Most electric dryers run the motor this way. The heating element is 240v but the motor is 120v.NO, THAT IS DANGEROUS ADVICE because a 240 volt service has a circuit breaker which is sized for the current draw of a large 240 volt appliance, so it would have a rated amperage that is too high to protect a 120 volt motor running on its own.Only 240 volt appliances such as dryers, air conditioners, etc. are safe to use on 240 volt circuits.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
11.5 x 240 = 2760W motor.
1200 x 0.2 = 240 Or 20/100 x 1200 = 240
240(720/3 = 240)(1200/5 = 240)
240 is 20% of 1200.
240
LCM of 240 and 300 is 1200.
The GCF is: 240
It is: 1200/240 = 5
only way to convert from 3 phase to 240 would be to change the electric motor on the compressor
20%
240
20