On Thu, Jul 26, 2018 at 4:14 PM, Chuck Guzis via cctalk <[email protected]> wrote:
> Such MG setups were very common in industry before modern > semiconductors. When I had a summer job showing movies at a drive-in > theater (a long time ago), the supply for the carbon-arc lamps was a > 40hp motor powered by 3-phase 60Hz, driving a DC generator. In WWII > radio equipment, MGs in a unitzed form called "dynamotors" were used to > supply the high-voltage anode voltage for the tubes. Electroplating > shops similarly used large DC generator setups to supply plating current. I believe if you want to be pedantic that a motor-generator set is a motor (with an armature/rotor and a field/stator) mechanically coupled to a generator (with its own armature/rotor and field/stator) whereas a dynamotor has a common field/stator (and possibly both armature windings have to be wound on the same core). -tony
