Convert three phase transformer to single phase?

I've got an ignorant question; can a three phase transformer be converted to run on single phase?

I was wondering if it could be done as follows:

As long as the transformer is wired in a Wye configuration, a person could tie lines A, B. & C together on the primary side creating three coils in parallel.

The three secondary coils would also be wired in parallel.

This would create a large current, single phase transformer.

Does this make any sense? How would a person calculate the output knowing the original specs?

Attached is a wye transformer diagram.

I do not see any reason why i would not be possible and practical.

I would however connect the three secondary windings via three low voltage low wattage globes just to make sure there are no circulating currents under no load conditions.

The VA ( volt amp rating ) of the original transformer is what you can expect under single phase regime.

Thanks for the response, but I do not understand what you mean by "low voltage low wattage globes".

That would be light bulbs on the top side of the world.;)

This does not work, the three coild are on a single Iron core so the magnetic flux would cause the current to rise as the colis fight against each other. I tried it like this on a Tfmr that was supposed to pull about 18A I hit the kill switch at 85V.

I have managed to use the two outer legs to work in 180 degrees as per this thread. Search google for this "Can you Run a three phase Transformer from single phase?" its on the PM site

al

Quote:

---

Originally Posted by alastairseggie

This does not work, the three coild are on a single Iron core so the magnetic flux would cause the current to rise as the colis fight against each other. I tried it like this on a Tfmr that was supposed to pull about 18A I hit the kill switch at 85V.

I have managed to use the two outer legs to work in 180 degrees as per this thread. Search google for this "Can you Run a three phase Transformer from single phase?" its on the PM site

al

---

Sorry this should have read:

This does not work, the three coils are on a single iron core so the magnetic flux would cause the current to rise as the coils fight against each other. I tried it like this on a 3ph transformer that was supposed to pull about 18A I hit the kill switch at 85A.

I have managed to do something similar. What I did was to use the two outer legs to work in 180 degrees. Search Google for this "Can you Run a three phase Transformer from single phase?" its on the PM site that details how I did it.

Al