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Re: determining transformer characteristics
Original poster: "Mark Broker by way of Terry Fritz <twftesla-at-qwest-dot-net>" <broker-at-uwplatt.edu>
thanks for posting those links. I had seen them months ago, but lost their
addresses. However, I was wondering if there was a way to perform similar
calculations on a non-current limited transformer (PT, MOT, pig)?
I have a couple transformers I would like to simulate accurately. I could
measure them, but that would mean buying a Henry meter capable of reading
perhaps 10kH (and it's gotta read the .1uH, too :-). Of course
just graduating with a BS and still looking for a job (what a wonderful
economy to graduate into!) means I can easily afford one...... (at least
I'm not terribly discouraged yet)
7/18/01 2:13:00 PM, Tesla list <tesla-at-pupman-dot-com> wrote:
>Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
>Check out these wonderful papers by Tero Ranta:
>At 10:43 AM 7/18/2001 -0500, you wrote:
>>Although my uses for this information is not directly related to Tesla
>>Coils, the information IS directly useful to TCs.
>>Without the aid of a Henry meter, I would like to determine the inductance
>>for a tightly coupled transformer. I've run across an excellent paper on
>>the Net that explained how to calculate the inductance of an NST. This
>>proceedure involved shorting the secondary while mearsuing the primary
>>current. On a loosly coupled transformer, like an NST, this proceedure
>>works sufficiently well. On a tightly coupled transformer (PT, pig, high-
>>power MOTs), this proceedure won't really work. Is there a way (without a
>>Henry meter) to find the inductance of a tightly coupled transformer?
>>Also, can anyone hazard a guestimate as to the coupling coefficient of a
>>500VA, 2:1 toroidal transformer?