Is it possible to increase an HP of motor by doing some changes in winding ?
It is possible to increase the motor horsepower rating but only when the motor winding wire size is increased during a rewinding. But, the rewinder has to check if the the new wire size and same number of turns will fit in the slots.A good insulating paper has to be used.
sure it's possible if you know what you are doing. And you have a lot of time. .
Not practically. The horsepower rating has to do with the mechanical torque that the motor can deliver to its shaft. Typically, the limitation is the temperature rise in the windings. To increase the horsepower output, you would need to change the windings in a way that would allow more current to flow without causing the motor temperature to exceed the maximum temperature of the insulation of the windings. That means rewinding the motor using insulation material that has higher temperature withstand capabilities. Physically, this may result in different physical dimensions and may not be possible. In any case, economic practicality is also probably an issue - it may cost more to have a specialty shop rewind the motor that it would cost to buy a replacement..
