Re: Overdriving potential transformers

To: tesla-at-grendel.objinc-dot-com
Subject: Re: Overdriving potential transformers
From: Esondrmn-at-aol-dot-com
Date: Fri, 29 Mar 1996 13:30:06 -0500
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In a message dated 96-03-28 11:44:44 EST, you write:

>
>How much current can I get from my 1.5kVA, 14400 potential transformer 
>before some kind of catastrophic failure occurs - 2kVA? 3KVA? more?  I 
>have assumed that as long as I don't exceed the rated voltage, a PT would 
>be almost as bullet-proof as a pole transformer and would be pretty much 
>limited by the temperature rise (i.e. - turn it off when it starts 
>getting warm).  Is this a reasonable assumption or am I going to quickly 
>end up with a dead PT by running it at a higher current than what it's 
>rated for?
>
>Steven Roys

Steven,

I would think you could overdrive it by at least 50%.  My 5kva pole pig does
not even get warm at 8.5kva.  Does your potential transformer get warm at 1.5
kva now?

Ed Sonderman