TRANSFORMERS:THREE-PHASE TRANSFORMERS

THREE-PHASE TRANSFORMERS

Most of the transformers used in power generation and distribution systems are three-phase. These transformers can be constructed from three single-phase transformers connected in a three-phase bank (Fig. 3.20). They can also be constructed by wrapping three sets of

Three-Phase Transformer Connections

The primary and secondary phases of any three-phase transformer are independently con- nected as a wye (Y) or delta (.::). The possible connections of a three-phase transformer are.