OK. With these last two responses its getting clearer.
Yes, it makes sense that for a more expensive construction the rotor can be made stronger to allow for larger diameters at a given operating speed.
wolf39 - I don't know the fundamental difference between the "turbo generator type units...
mdx here. Thanx for all your responses.
The crux of the issue here may be the limit on diameter is due to the stresses induced by the rotation. How can I estimate the practical limit on diameter for a generator in the 1-10MW range for common RPMs such as 900, 1000, 1200, 1800? (I expect...
The alternator is a fairly simple maching with a stator and rotor being the two primary components. For different applications it may be desireable to either minimize the diameter or minimize the length. Hoover Dam, for example, seems to have short length generators with the diameter being...
