Ferro-resonant xformer conversion?

From: Wai-Sun Chia <waisun.chia_at_hp.com>
Date: Thu Jul 15 12:28:04 2004

Assuming you have a ferro-resonant transformer targetted for 60Hz
operation and you want to convert it into 50Hz (assuming current load is
the same)..

Question:
- if one just maintains the RC value, the tank would still resonate and
perform its function of maintaining load and line regulation?

    e.g. originally R1C1 = 60, now we want R2C2 = 50, if we retain
         the original external caps, we have:
         R1C = 60 and R2C = 50, therefore: R2 = (5/6)R1

         which means that R2 is just about 17% smaller than R1.


Bottom line is:
Does simply measuring the primary winding's resistance and adding a
series resistor network which decreases the total resistance to 5/6th of
the original, work?

Sorry if all this is really crap..
My magnetics/electronics is pretty rusted, unfortunately.


p.s. samples of a 5/6th resistor network would be welcome :-)

Thanks.
/wai-sun
Received on Thu Jul 15 2004 - 12:28:04 BST