Transformer are actually quite easy to learn and understand… They're just made confusing for some odd reason! Transformer theory, currents and voltages in various transformer connections, transformer phase angle, the YY connection, DAC-Y, DAB-Y ... it will all be covered here
Introduction to the Delta Wye Transformer connection 16 Videos
In this series, we'll introduce to the DAC or Dyn11 transformer connection, define our voltages and currents, understand how to relate line-to-line voltage with line-to-ground voltage, relate line current with phase/winding current, draw the current phasor diagram, the voltage phasor diagram, and understand how to relate the phase shift between the HV side and LV side.
Introduction to the Wye Wye Transformer connection 4 Videos
In this series, we will focus on what makes a Wye or Star connected transformer, the difference between line-to-line voltage and line-to-ground voltage, the difference between line current and phase/winding current, and lastly, we'll perform phasor analysis and explain what a balanced system means.
Open Phase Condition in Transformer Analysis Paper Review
In this paper review, we look the reaction of voltage and current for transformers when one phase is open on the HV side