[Shop-talk] tech info page

Randall tr3driver at ca.rr.com
Sat Oct 13 17:39:33 MDT 2007


john niolon wrote :

> Wandering around the information cul-de-sac and found a 
> pretty good tech page that Surplus Center has up.

Use it with care, though.  I found a mistake on the very first page I looked
at.  Under "motor relationships", single phase amps knowing kW, should be
(kW * 1000) / (E * PF).

For the question I'm pondering : Does anyone know how to increase the
no-load speed of a parallel-wound DC motor without rewinding or changing the
supply voltage ?  ISTR there was a way to do it, but I don't remember what
it was and I can't find my old motor theory book.

Randall


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