Matt Colie wrote:
The flywheel is the giant ring with square holes (it is painted). teh
square holes are for the guys like me to lock a jack in so the engine
can be turned slowly and controlably for any of a number of maintenance
procedures.

Per a resounse above - the unpainted thing is a ring of field poles. It
is called a salient pole mancine as opposed to round rotor. You could
could them and devide by 3600 to figure out what speed it ran (sllooww).


Matt, thanks for the explanation. This machinery is a bit
outside my experience and I appreciate the chance to learn a
little about it. Is there a particular type of plant that
uses these generators?

Regards
Doug King