ECN Forum Forums Technical Discussion Electrical Theory and Applications Power factor and transformer efficiency

Tesla, I do not understand this advice:

"You may want to re-calculate your taps. With the long run they should be different, not symmetrical."

We have both transformers using the same 100% taps so 240V-600V step up and 600V-240V step down.
We do have taps on the transformers to adjust the turns ratio.
Is having them identical a problem? This is a new consideration to me.

Thanks