[Amps] Amps Digest, Vol 220, Issue 21

[Doug Ronald]

While experimenting, excite the windings with a low voltage, like 6.3 VAC
from a small filament transformer. Then if you have a winding reversed,
instead of blowing a breaker, you will only see a small spark. Also, it's
much safer measuring the turns ratio.
-W6DSR

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Fuqua, William
L.
Sent: Wednesday, April 21, 2021 14:46
To: amps at contesting.com; ah7i at gatech.edu
Subject: Re: [Amps] Amps Digest, Vol 220, Issue 21

I think it would be time for some experimentation. These are large enough
that it would still provide more than enough power for amateur work.

________________________________
From: Amps <amps-bounces at contesting.com> on behalf of Bob D.
<ajamas.rn at gmail.com>
Sent: Wednesday, April 21, 2021 4:36 PM
To: amps at contesting.com <amps at contesting.com>
Subject: Re: [Amps] Amps Digest, Vol 220, Issue 21

CAUTION: External Sender


Aloha Bill,

For single phase, look at flux.
If you excite the winding on one leg of the core, the flux passes through
all three legs.
Core saturation will reduce the kVA rating to very roughly, 1/3 of the 3
phase rating.

73, -Bob


Date: Wed, 21 Apr 2021 07:47:07 +0000

> From: "Fuqua, William L." <wlfuqu00 at uky.edu>
> To: "amps at contesting.com" <amps at contesting.com>
> Subject: [Amps] single phase into 3 phase transformer
> Message-ID:
>         <
> BN7PR03MB4499D73ADD4DC222578C7F44CB479 at BN7PR03MB4499.namprd03.prod.out
> look.com
> >
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> What is the preferred method to wire a 3 phase transformer to operate 
> off of single phase?
> I have heard of several possibilities and happen to have a mess of 
> multi kW three phase HV transformers.
>
> 73
> Bill wa4lav
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
>
--
-do not look into LASER with remaining eye!
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