230 volts drawing 1 amp is roughly 230W. One HP is 746 watts so 230/746 is 0.3HP. It is somewhere between 1/4 horse to a 1/3 horse. Good luck with getting 3 phase unless you are in an industrial area. Most housing and rural area only have two phases available. I'd take it to the junk yard and salvage the copper in it. It is about like a older washing machine motor except you can't really hook it up to power.
Ed C