Re: Identifying Current and Voltage on vaguely marked MOT. (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 28 Aug 2007 20:32:39 -0700 (PDT)
From: Mike <megavolts61@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Identifying Current and Voltage on vaguely marked MOT. (fwd)

Can you not apply 120V to the secondary and read off the primary voltage...That should give you a very good approximation to the voltage ratio...Then you have two variables to work with
  Mike
  

---------- Forwarded message ----------
Date: Mon, 27 Aug 2007 21:38:15 +0100
From: Tom Trevethan <t.trevethan@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Identifying Current and Voltage on vaguely marked MOT.
 (fwd)

Not possible. Although most MOTs are around the 2 kV mark. If you have 
a variac
(or any low voltage AC source) you can measure the voltage ratio with a
multi-meter and then scale up to mains voltage.

MOTs can give around 400 - 500 mA, although they are not very good at
 current
limiting, so don't short it (or use it in a Tesla coil) without a
 ballast.

Tom

Quoting Tesla list <tesla@xxxxxxxxxx>:

>
> ---------- Forwarded message ----------
> Date: Mon, 27 Aug 2007 00:21:46 -0500
> From: Glen McGowan <glen.mcgowan@xxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Identifying Current and Voltage on vaguely marked MOT.
>
> Just curious if there's some super secret math out there that can
 help me
> identify the rated voltage and current of a MOT.  I only have one
 variable
> for the equations.... the MOT is labeled with 700W output. That's
 it......


       
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