If three-phase transformation is needed and a three-phase transformer of the proper size and turns ratio is not available, three single-phase transformers can be connected to form a _____.

A) three-phase bank
B) wye-delta bank
C) wye bank
D) delta bank

Three-Phase Bank

Single-phase transformers connected in such a way as to operate on a three-phase system.

Single-Phase Transformers

Transformers designed to operate on an AC power supply of single phase, meant for transferring electrical energy between circuits.

Transformation

A thorough or dramatic change in form or appearance, often used in reference to energy conversion processes.