How to change the frequency for Motor 50 to 60HZ operation
The motor will operate 20% faster with 60 Hz. The driven equipment may run properly at a faster speed and it may not. If the motor is driving a fan or a centrifugal pump, it will require 44% more torque and 73% more power. That would not work at all. If the driven equipment is something like a conveyer, it will require no more torque but 20% more power because power is torque multiplied by speed.

In order to produce the same torque at the higher frequency, the motor should have 20% higher voltage or 264 volts. If you try to run the motor on 220 volts, the torque capability will be reduced in proportion to the voltage squared. Since 220 is 0.83 X normal voltage the torque capability will be about 0.69 x normal torque. If you can run the motor at 240 volts, the torque will be 0.83 x normal. If you can boost the voltage to 264 volts with a transformer, the motor will work properly. It will produce normal torque and 20% more power. It will be ok for something like a conveyor, but not for a fan or centrifugal pump.