What electric motor do you need to lift 200kg at a height of 10 meters for 3 seconds time.

Question

the weight is attached with a rope . what is the power rating (,ost economic) that would suit my needs? 1 or 3 phase motor?

Answer 1

200kg is 1960 N. To lift that weight 10 meters is 19600 Joules, or 19.6 kJ

19.6 kJ in 3 sec is 6.53 kW

6.53 kW is 8.8 HP

You need to allow for losses in the pulley and in the motor, so you probably want a 15 HP motor.  You can get either 1 phase or 3 phase motors.

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Answer 2

You need an electric motor with at least 11 HP rating. The phase depends on the type of electric power available where you will use it.