Re: SRSG questions

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Zagarus Rashkae by way of Terry Fritz <teslalist-at-qwest-dot-net>" <arbitrarily_random-at-yahoo-dot-com>


--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "Finn Hammer by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <f-h-at-c.dk>
 >
 > Chris,
 >
 > Start the motor up with the disk attached, and
 > preferably with the
 > moving electrodes installed, using a variac and an
 > analogous
 > amperemeter.
 >
 > As the motor gains speed, the meter is going to show
 > variations in
 > current draw, this will be accompanied by sound from
 > the motor. This
 > behaviour is called hunting. You will recognize it
 > immediately when you
 > see/hear it. Increasing the voltage should produce
 > the effect that the
 > variation finally stops, and a steady current draw
 > results. This means
 > that the rotor has locked to the rotating field. It
 > has become
 > syncronous. If it does not lock in, take more off
 > the armature. If you
 > take too much off, don`t dispare, you just have to
 > run it at a lower
 > voltage, which means that the gap is going to need
 > it`s own variac.

WOW! That sounds complicated. I don't want to spend
too much time on it, but if you say... I have access
to a variac and also a Scope-meter thingy. If the
variac is at max and the motor still doesn't sync
should I cut off some more material? If the sound
coming from the motor is smooth and I have flats cut
already am I okay or do I have to use a meter?