Re: Odd Motor Mod...

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

Original poster: "Mike Novak by way of Terry Fritz <twftesla-at-uswest-dot-net>" <acmnovak-at-msn-dot-com>

Should I use 1/4 the diameter of the armature for the width of the flats? I
normally use 1/2 for 3600 RPM and 1/3 for 1800 RPM and it works every time.
All that crap about the dead poles is kinda redundant for motors that don't
have dead poles...

Safe coiling!

-Mike Novak

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, February 13, 2001 8:49 PM
Subject: RE: Odd Motor Mod...


> Original poster: "David Dean by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<deano-at-corridor-dot-net>
>
> hi Mike
>
> That would be a six pole motor. Six flats will get you 1200 RPM. Use the
> high speed wire and cap off (wire nuts are OK) the other speed wires. If
> 1075 is the highest speed listed, or the only speed listed, then that will
> be the high speed. The other speeds use more inductance (windings) on the
> run winding to lower the current and increase the slippage. The high speed
> is the only one of interest for sync mod use.
>
> later
> deano
>
> > -----Original Message-----
> > From: Tesla list [mailto:tesla-at-pupman-dot-com]
> > Sent: Tuesday, February 13, 2001 7:24 PM
> > To: tesla-at-pupman-dot-com
> > Subject: Odd Motor Mod...
> >
> >
> > Original poster: "Mike Novak by way of Terry Fritz
> > <twftesla-at-uswest-dot-net>" <acmnovak-at-msn-dot-com>
> >
> > Hello All,
> > I was hoping someone might provide me with some info on modifying this
odd
> > motor I aquired. The specs on the nameplate are as follows...
> >
> > HP 1/2   HZ 60   PH1   CAP 10.00/370
> > V 115    RPM 1075/4SPD
> > A 7.9
> >
> > But here's where things get sticky... The 4 speed thing. I want to
modify
> > this thing for salient pole operation, but am unsure on the flats. I'm
not
> > sure how many/ how big the flats should be. Although the RPM is listed
as
> > 1075, it has 3 speeds: "HI, MED, LO". What should I assume the RPM is?
> > This thing is made by GE and it has some really nice bearings, so
> > I'm kinda
> > reluctant to scrap it. The shaft is like 5" long with a flat for a set
> > screw. I've done 7-9 motor mods so far and this one should be
> > easy, pending
> > I can figure out how...
> > Thanks,
> >
> > -Mike Novak
> >
> >
> >
>
>
>
>