Re: [CAD_CAM_EDM_DRO] Re: relay help req. (horsepower definitions)

Aint nuthin like a good can of worms to keep em' happy!

One horsepower equals 746 watts in the same way one gallon equals 231 in**3
or one inch equals 25.4mm. One HP will always equal 746W or 550 ft.lb/s
because it is a unit of measure.

The reason it takes about 1KW to get one HP from a motor is because some of
the power will be wasted in heat (entropy). This is analogous to spilling
some milk as you pour it from one container to the next.

Perhaps it is difficult to see how mechanical HP can be equivalent to
electrical power. If you took Watt's horse and hitched it to a friction
device, that device would produce heat equivalent to a resistive element
that consumes 746 watts.

Doug