What are the differences between delta and wye electrical power configurations, and where are each typically used in a building?

Delta and wye are two common configurations for three-phase electrical power distribution. In a delta configuration, the three phases are connected in a closed loop, resembling the Greek letter delta (Δ). There is no neutral connection in a standard delta configuration. The voltage between any two phases is the same, known as the line voltage. Delta configurations are often used for applications where high voltage is required, such as powering large motors or indu....