On 21 January 2012 13:35, Sean Breheny <shb7@cornell.edu> wrote:

> But if you find yourself with the light lit, you cannot tell whether
> you are doing the right thing or not by continuing to keep the
> generator engaged. The poster who mentioned the light bulb wanted it
> to perform two functions - help with synchronization AND allow him to
> determine whether he was, at that moment, generating or motoring.
>


Traditional method is two bulbs connected so you can see direction of
rotation and rate of slip. Far odd is just a bright blur, but you probably
know it is too slow/fast anyway. As you approach matched the lamps light in
order and you can see rotation direction and rate of change. Connection of
2 bulbs to do this left as exercise for the student (I forget but the back
of a mental enevelope is about all you need).


                 R
--=20
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