Re: Transformers with welded laminations

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "BRIAN FOLEY" <ka1bbg@xxxxxxxxxxx>

Hi, good question. The stripe is where they welded the 2 iron laminations
together. Microwave oven transformers often are made this way. welding
transformers are quite often put together this way as well. makes winding
and assembly much easier since they can seal and coat the windings before
assembly. cul brian f.
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, January 30, 2006 12:30 PM
Subject: Transformers with welded laminations


> Original poster: norman@xxxxxxxxxxxxxxxxxxxxxxxxx
>
> I have come across several misc high voltage transformers with a thin
welded
> stripe shorting all the laminations together.  Why would the manufacturer
do
> this since it will cause eddy currents? These transformers also had
> (coincidently?) magnetic shunts.
>
>