Dr,
I agree with you on measuring the wire size; however, upon investigation the
secondary terminals are fed with , thick flat copper bus which has much more
area then the actual secondary wires, so I'm not going to tear open the
beast to find the wires. A couple of other gentlemen suggested that maybe
the transformer has a 2 amp rating, so for the heck of it I will run the
test for another 5 or 6 hours at 2 amps and check the temperature again.
73,
Ken W2DTC
------------------------
----- Original Message -----
From: "Dr. William J. Schmidt, II" <bill@wjschmidt.com>
To: "kenw2dtc" <kenw2dtc@comcast.net>; <amps@contesting.com>
Sent: Sunday, June 12, 2005 3:11 PM
Subject: Re: [Amps] questions on my tranformer test
>I would think that the best way to tell is measure the wire size of the
>secondary winding. The second best way is measure he cross-sectional area
>of the transformer, as theoretically it is related to the power
>capabilities of the steel.... which you can back into current (after
>accounting for reasonable efficiencies). 180F seems a little warm for a
>CCS transformer... maybe Will can weigh in here...
>
> Sincerely,
>
> Dr. William J. Schmidt, II K9HZ
> Trustee of the North American QRO - Central Division Club - K9ZC
>
> Email: bill@wjschmidt.com
> WebPage: www.wjschmidt.com
>
> "If computers get too powerful, we can organize them into a committee;
> that will do them in." -- Bradley's Bromide
>
>
> ----- Original Message -----
> From: "kenw2dtc" <kenw2dtc@comcast.net>
> To: <amps@contesting.com>
> Sent: Sunday, June 12, 2005 1:39 PM
> Subject: [Amps] questions on my tranformer test
>
>
>> Hi,
>> I'm trying to figure out the current rating of a plate transformer. This
>> is
>> my test setup:
>>
>> http://w2dtc.com/2005-0610-transformer-test-page.htm
>>
>> Questions:
>> 1. Is this a valid way to find the secondary current capability?
>> 2. Is the internal temperature of 180 degrees F too high for a
>> transformer
>> under load for 5 hours?
>> 3. Is there a problem running this center tapped beast in a full wave
>> capacitive input configuration?
>>
>> Thanks and 73,
>> Ken W2DTC
>>
>>
>>
>>
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|