Basic Electrical and Electronics Engineering: Unit II: Electrical Machines

Three Phase Transformer Connections

The primary and secondary windings of a transformer can be connected in different configuration as shown to meet practically any requirement.

THREE PHASE TRANSFORMER CONNECTIONS

The primary and secondary windings of a transformer can be connected in different configuration as shown to meet practically any requirement. In the case of three phase transformer windings, three forms of connection are possible: "star" (wye), "delta" (mesh) and "interconnected-star" (zig-zag).

The combinations of the three windings may be with the primary delta-connected and the secondary star-connected, or star-delta, star-star or delta-delta, depending on the transformers use. When transformers are used to provide three or more phases they are generally referred to as a Polyphase Transformer.


Basic Electrical and Electronics Engineering: Unit II: Electrical Machines : Tag: : - Three Phase Transformer Connections


Basic Electrical and Electronics Engineering: Unit II: Electrical Machines



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