Leo Lichtman wrote:
When I was in school, we synchronized a generator with the utility power by
connecting a light bulb between them. When the bulb went out, they were in
phase, and we threw the switch. After that, they were self-synchronizing,
because if our generator slowed down, it would start to draw power from the
line, and come back to speed.

That brings back memories. In the airforce at a radar site we had 3
big Buda (sp?) geneators which when used to operate the set had to
be synched. There was the same light bulb on the control pannel and
when it went out the switch was thrown to connect the second one.
Ah yes 1952 boy was that a long time ago.
...lew...