Hello everybody.

In a DC machine ,motor or generator doesn't matter, There are two torques in the power flowdiagram. I know the mechanical torque e.g on the output of a motor or on input of a generator. But the other torque Tdev I don't know ???
Thx

 

hi,
Read thru pages #13 and 14 of this linked PDF for an explanation.
http://www.google.co.uk/url?sa=t&rc...f_tHtq66WBERHeg&bvm=bv.82001339,d.ZGU&cad=rja