Selection of System Voltage

The selection of utilization and distribution voltage levels is one of the most important considerations in power system design. System voltages usually affect the economics of equipment selection and plant …

Why Wye-Wye Transformer Connection is Bad?

Transformer Primary Connections Transformer primaries are usually connected in delta. The wye connection is occasionally used and may or may not have its neutral grounded. If the transformer secondary is …

System Grounding

Secondary Grounding When a wye connected circuit and solidly or effectively grounded neutral is used, the following benefits are obtained in addition to the dual voltage capability, (a) A single …