ideal transformer phasor diagram

Discussion in 'General Electronics Chat' started by elecidiot, Aug 24, 2010.

  1. elecidiot

    Thread Starter New Member

    Jun 29, 2010
    suppose if we draw the phasor diagram for an ideal transformer on load, we draw flux phasor as reference. The current phasor is in phase with flux phasor ie parallel. Then the applied voltage phsor v1 at the primary is 90 deg leading with respect to the reference flux phasor. This i can understand. But why it is shown in number of books that the induced voltage in the primary e1 is shown 90 degress lagging the reference flux phasor? In other words why the induced voltage is shown 180 degree with respect to applied voltage phasor? This contradicts the KVL law since e1=v1?

    The phasor diagram is attached.