Re: Transformers with welded laminations

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "J. Aaron Holmes" <jaholmes@xxxxxxxxxxxxxxxxxx>

MOT cores are often welded like this.  I imagine it's
just cheaper than using nuts and bolts, and the eddy
currents are probably considered no big deal, because
these kinds of transformers aren't meant to be run
continuously and can therefore run at higher
temperatures.

But I could be wrong.

aaron

--- Tesla list <tesla@xxxxxxxxxx> wrote:

> 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.
>
>
>
>