Re: Need help identifying a transformer

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jimlux-at-earthlink-dot-net>

7.5 kVA/240V = 31.25 Amps
The low voltage winding is probably 240 centertapped, or a pair of 120V
windings that can either be arranged in series (240V -at- 31.25 A) or parallel
(120V -at- 62.5 A).

Were there any markings for the secondary voltage?

Or, the transformer could just be a 120 <> 240V transformer

or, the transformer could be an isolation transformer 120/240 on one side
and 120/240 on the other.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, April 04, 2001 10:49 PM
Subject: Need help identifying a transformer


> Original poster: "Kent Vander Velden by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <graphix-at-iastate.edu>
>
>
>   While visiting the local university surplus warehouse today, I stumbled
> across a transformer that I could use some help identifying.  The input
> is marked as "120/240" and the output is 7.5kva.  Now, I feel a bit
> ignorant asking this, but what is the voltage and current rating then?
>
>   The brute was quite heavy, but appeared to be entombed in that nasty
> emulsion stuff.  Only $25 though I do not want to lug it home unless I
> know what the thing is.
>
>   Thanks.
>
> ---
> Kent Vander Velden
> kent-at-iastate.edu
>
>
>