Re: (ET) Question on motor RPM

[David Harvey <davharv yahoo com>]

An E12s is close to an E15 without field weakening, an E12 is different.

--- On Sat, 5/14/11, Chris Zach <cz alembic crystel com> wrote:

From: Chris Zach <cz alembic crystel com>
Subject: Re: (ET) Question on motor RPM
To: "RJ Kanary" <rjkanary consolidated net>
Cc: "elec-trak cosmos" <elec-trak cosmos phy tufts edu>
Date: Saturday, May 14, 2011, 10:33 PM

RJ Kanary wrote:
>                  According to the schematics some have stabilizing fields and some do not.A straight E-12 does not have it.{Has a centrifugal switch mounted on the end bell opposite the pulley.}

Yep, that's it. Nice little *click* as the motor comes up to speed.

But that is odd; the motor was running faster with the field in one direction as opposed to the other. And when I ran it with the field on then took the field off it spun up to a higher speed in one direction. Something was keeping the field going I think.

>            GE did not provide a complete as built schematic for the E-12 S, so the only way I can think of to find out is to open one up.

*nod* Not something I'm going to do right now :-) But I will fiddle with it a bit more later.

Chris


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