Question

A 11500/2300 V transformer is rated at 100 KVA as a 2-winding transformer. If the two windings are connected in series to form an auto transformer. What will be
the voltage ratio and output ?​

Answer 1

Answer:

rated current of L.V winding 100*10power3/2300=43.47a

maximum KVA rating of auto transformer 11500+2300*43.47=600KVA