Transformer Interactive Animation Lab

Corrected physical construction: windings visibly wrap around the iron-core limbs, main flux travels through the core, and leakage flux remains outside the core.
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Transformer action occurs because alternating current in the primary creates alternating flux, which links the secondary and induces EMF.
Interactive transformer animationTransformer operation, losses, load phase, and open-circuit and short-circuit test animations.

Transformer Working Principle

A changing current in the primary winding produces alternating flux in the core. That same changing flux links the secondary winding and induces EMF.

    Quick Quiz

    Teaching note: directions use conventional current. In OC and SC test views, you can drag the instruments with the mouse.