On Jan 19, 1:55 am, [email protected] wrote: > .... 3 years in > the Engineering Test Lab I can pass on a little information on alternator > speeds. On a sychronous alternator the rotor operates with DC excitation, ... > Tim
I remember we had a synchronous machine in our university's power lab. Thing was the size of a car. It was a 3-phase unit. I believe it was 440V, but can't count on my memories accuracy. It was coupled to a DC motor, that was used to get it up to speed. It had the 3 neon bulbs, which we watched while tweeking the speed. At the very moment all 3 went out, we closed the switch, connecting it to the grid. We use to refer to them as a machine, because it would work as either a motor or generator (alternator). Also depending on the fine points of excitation, it could either look like an inductive, or a capacitive load. We were more careful in power lab, than in most. If you screwed up, the consequences were a little more serious than smoking a few parts. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
