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Re: MOT Current Measurement
Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>
if you're just making transformer parameter measurements (i.e. leakage
inductance), you can make the measurements at lower primary voltages (use a
resistor or variac to drop the voltage). Or, you can short the low voltage
winding and put the 120 or 240 on the HV winding....
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
Sent: Sunday, March 31, 2002 7:46 PM
Subject: MOT Current Measurement
> Original poster: "Matthew Smith by way of Terry Fritz
> Hi All
> I wish to take current measurements of a microwave oven transformer
> (MOT). I propose to short out the secondary with a a piece of wire
> around which I would place a clamp ammeter. I would then put the clamp
> meter around one of the primary leads to measure input current.
> 1) Is this the correct procedure for taking transformer measurements?
> 2) How quick would I need to be taking measurements before the shorted
> secondary caused overheating? (Assume a thirty degree Celcius ambient.)
> Matthew Smith