Voted Best Answer
Jan 03, 2017 - 04:57 AM
Hi.. You can achieve that in two ways. One, you can inject DC current at the LV side of the transformer and adjust the current to get the flux balanced in all the limbs equivalent to that of power frequency phases; second one is you can have an AC source connected to the primary of the transformer. Since it is remnant flux,you have to disconnect it before switching operation(few time steps).
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