Hawk, I understand your dilemma. In the case of power generation, there IS output power from the turbine, and it's rotational work - i.e. rpm with torque.
The rpm will be a constant based on the power grid frequency of the country; that's typically 3000 rpm in a 50 hz. country.
The torque of the generator drive shaft will be directly proportional to the load current leaving the generator.
And shaft horsepower is the product of rpm and torque. Look at my response to Old Smokey a few days ago for the math.
OH YES - and the useful power from the generator output is the product of voltage x current!
Last edited by barit1; 17th Oct 2005 at 11:53.