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Re: [Amps] transformer talk

To: <amps@contesting.com>
Subject: Re: [Amps] transformer talk
From: "Partain, Chuck" <Chuck_Partain@maxtor.com>
Date: Fri, 10 Feb 2006 15:21:50 -0500
List-post: <mailto:amps@contesting.com>
ok so now...

   is this a good start for checking a transformer?

Specify 2000 vac at say 1 amp.

the test is

manufacture the device for unloaded output 3% higher (whats that 60-100v)

short the secondary and apply an input voltage until you reach the specified 
output of 1a

watch the heat rise over (IEEE specs I think) 6 hours with a thermocouple or 
until it
gains no more than 1deg c per hour. 

plot resistance drop of pri and sec every 15 seconds for 15 mins and see plot 
delta.

make sure seconfdary resistance is VERY low ~11 ohms.


Hi pot to whatever, say 10kv

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