Converting 3 phase to single phase using transformers?

Two transformers with 2:2 winding ratio (primary:secondary) and a third transformer with 2:1 winding ratio is taken and primaries are connected to three phase as shown. Secondary is connected in series with the secondary of the third transformer reversed. If the load is resistive will this arrangement draw same current from all the three phases? How to draw the vector diagram to figure out this?

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  • 6 months ago

    LTSpice says yes, but the current on phase A and B are 90° from the voltage, and the current on phase C is 180° from the voltage.

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  • 6 months ago

    The alternator in a vehicle is three phase rectified to single phase pulsating DC and filtered to 12VDC in a car and 24VDC in a truck, without a transformer.

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