Question

Why is 1 hp equal to 746 watts

Answer 1

$❥\huge\red{\underline{{\bf A}}}\huge\orange{\underline{{\bf n}}}\huge\green{\underline{{\bf s}}}\huge\blue{\underline{{\bf w}}}\huge\purple{\underline{{\bf e}}}\huge\pink{\underline{{\bf r}}}$

A 1 hp motor cannot use less than 745.7 Watts so if it uses 1 kW it is about 75% efficient, which sounds about right for a motor of that size. One mechanical horsepower of 550 foot-pounds per second is equivalent to 745.7 watts. ... * One horsepower for rating electric motors is equal to 746 watts.

Answer 2

Explanation:

A 1 hp motor cannot use less than 745.7 Watts so if it uses 1 kW it is about 75% efficient, which sounds about right for a motor of that size. One mechanical horsepower of 550 foot-pounds per second is equivalent to 745.7 watts. ... * One horsepower for rating electric motors is equal to 746 watts