Can an Open-Delta Connection Provide True Three Phase with Two Transformers?

Want to know about Open-Delta configuration and how the efficiency of the overall circuit is affected when one transformer is removed? Can a Open-Delta connection provide true 3-phase power, and how can this be approached using mathematical formulas? This article defines open-delta connections and looks at how the power factor (pf) varies during the power cycle, allowing three-phrase to be produced even if one transformer is missing or defective.