Re: [TCML] Variable RSG

[FIFTYGUY@xxxxxxx]

In a message dated 4/9/08 7:51:35 P.M. Eastern Daylight Time,  
quarkster@xxxxxxx writes:

>  I've experimented with John Freau's phase adjust circuit  using 
salient-pole motors, and it works as 
>advertised.

>   

>  However, I've never tried it on an un-modified synchronous  motor 
(conventional squirrel-cage 
>induction motor). Does it work on an regular squirrel-cage  motor?


    Pretty much a moot point, since as John himself has  already pointed out, 
squirrel-cage induction motors will *always* run with some  "slip" so their 
RPM is slightly less than their nominal "synchronous" speed. If  any motor of 
any type isn't running at a fixed RPM that is a factor of  3600, the phasing 
relationship between the flying and fixed electrodes will vary  as the motor 
runs. The actual RPM of a squirrel-cage induction motor is  dependent on the load 
it's under, and it's dependent in a highly non-linear  manner. 

    I'd guess John's phase circuit *does* affect the  phase of a non-synch 
motor, but the effect is irrelevant since the electrode  alignment-to-power 
source phasing will be all over the place anyhow.
 
-Phil LaBudde
Center for the Advanced Study of Ballistic  Improbabilities



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