Re: [CAD_CAM_EDM_DRO] Torroid Question

Are ferrite ok for mains frequencies or does he mean a standard strip wound
toroid?

Regards Peter

----- Original Message -----
From: "Jon Elson" <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, December 03, 2002 6:58 AM
Subject: Re: [CAD_CAM_EDM_DRO] Torroid Question


>
>
> Chris L wrote:
>
> >Maybe some of you qualified guys can tell me what output amperage the
> >following transformers are good for.
> >
> >I picked up three Ferrite Torroid transformers. Here is what I can make
> >out on the very poor photocopy: 120v - 20va Input, 88v output, 44 volt
> >
> Wait a minute! 20 VA? That is less than 20 Watts!
>
> >output secondarys
> >AV= 4xx (Cant tell what the x's are)... I= x.2 (don't know what x is)
> > They go about 5 lbs and they are almost 5" in diameter and 1-3/4" thick.
> >
> >There is a number on it, but I do not know if it can lead to anything:
> > R53244UD100T
> >
> >
> Hmm, these should be good for more than 20 VA. based on weight, it
> seems. But, assuming the
> 20 VA is correct, I= (VA)/V = 20/88 = 0.227 A at 88 Volts, or 20/44 =
> 0.455 A.
>
> You won't run a very big motor with these.
>
> Jon
>
>
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