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

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 27 Aug 2007 22:08:19 -0700
From: Jim Lux <jimlux@xxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>, tesla@xxxxxxxxxx
Subject: Re: Identifying Current and Voltage on vaguely marked MOT.  (fwd)

At 08:21 PM 8/27/2007, Tesla list wrote:

>---------- Forwarded message ----------
>Date: Mon, 27 Aug 2007 18:20:35 -0700
>From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: Identifying Current and Voltage on vaguely marked MOT. (fwd)
>
>You need to measure to find out actual specs. Most MOTs will be less
>than 2600 Vac and many meters will read about 700 Vac. That's a little
>less than a factor of 4. But, protect your meter by being smarter than
>the voltage. If you have the capability to vary the AC voltage from 0 to
>full voltage (like a variac), start at 0V and slowly increase the
>voltage until you are just below the meters specifications. Log down the
>voltage on both the primary and secondary sides of the transformer.


Or do what the pros do and put the 110V on the HV side, and measure 
the low voltage side.

http://home.earthlink.net/~jimlux/hv/xfmrmeas.htm