Why 30 degree phase shift in transformer?

Why 30 degree phase shift in transformer? From what I understood of the answer by Andy, he said the phase shift is due to the typical 30° difference between a line-to-line voltage phasor and the corresponding phase voltage phasor, but that’s a partial answer; you also need to consider how the delta winding is interconnected and how the windings are connected …

What is a 30 degree phase shift? But when the primary and secondary windings are connected differently, the secondary voltage waveforms will differ from the corresponding primary voltage waveforms by 30 electrical degrees. This is called a 30 degree phase shift.

Why does a Delta Wye transformer have a 30 degree phase shift? For Delta , Line and Phase voltages are same and in phase but in case of Star phase and line voltages are not same . In Star line voltage makes 30 degree phase shift with phase voltage . SO there is a 30° phase shift between primary and secondary voltages of a star-delta connected three phase transformer .

Why is there a phase shift in a transformer? In power grids, phase-shifting transformers provide active power flow control. By enforcing or blocking loads, they not only improve the stability and flexibility of grids but also help grid operators get the most out of existing hardware. Phase-shifters are available in a range from ≤ 2000 MVA and ≤ 765 kV.

How 30 degree phase shift take place in star-delta transformer? by Prof. Irfan Mujawar

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