I need to do some calculations to know if a metal sphere (iron, steel, whatever) that is 0.25kg is dropped from 2 meters, will it produce enough torque (kenetic energy?) to start a generator with the specifications below? Furthermore, if a metal sphere was dropped every second, continuously, would the generator generate the 3500 W? If not, what size would the metal sphere have to be to make the generator work?(adsbygoogle = window.adsbygoogle || []).push({});

Rated rotation speed: 250 RPM

Rated output: 3500 W

Weight: 75 kg

Rotor inertia: 0.066 Kg.m2

Starting torque: <2.0 NM

Phase resistance: 2.7 ohms

Recified DC Current at Rated output: 11A

Required torque at rated output: 150 NM

Thanks!

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# Start up torque for generator

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