THREE PHASE TRANSFORMER

You have not mentioned whether voltages of 13200 and 1200 v are phase voltages or line voltages. Turns ratio would be phase voltage on primary/phase voltage on secondary.

THAT IS WHY I AM CONFUSED BECAUSE NOTHING TELLS ME IF IT IS A LINE VOLTAGE OR A PHASE VOLTAGE?

You have to give more information!

Is it a single three phase transformer or three single phase transformers tandem connected ? If you are not sure where from you got the values of 1200 and 13200.Is it from name plate from transformer l or from manual.

Unless we get all inputs it will be very difficult to give correct solution.

It is three phase transformer made out of three identical single phase transformers

Turns ratio is the number of turns of wire on the primary verses the number of turns on the secondary. If you are using voltages, you are not getting a turns ratio.. Line voltages usually refer to the power at point of use. The distribution panel for example.

Phase voltages would be measured from phase to ground or phase to phase.

If this does not help, let me know, I will try and be more accurate.

Good luck,

James

Thank you ...but still does not help. Those are all the info I have to determine the turns ratio - so the way I go about is divided the 13200 by the 1200 since I do not have any other information.