IEEE Guide for Application of Transformer Connections in Three Phase Electrical Systems - Corrigendum 1

Transformer connections and configurations in three-phase electrical systems are described in this guide. The characteristics of the various transformer connections and possible operating problems under normal or abnormal conditions are treated. All combinations of delta and wye, grounded and ungrounded, T connected, zigzag, and certain special connections are considered. Only two-winding and auto-transformers are included.