![]() This winding is called the secondary winding. With a second winding wrapped around the same core, a voltage is induced by the magnetic field. When the primary winding is energized with an alternating current (AC), alternating magnetic lines of force, called "flux," circulates through the core, establishing a magnetic field. The transformer primary winding receives electrical energy from the power source. Each phase of a transformer is composed of two separate coil windings wound on a common core. ![]() Transformers efficiently transfer electrical energy from one circuit to another by means of magnetic induction. ![]() ![]() When the primary winding of a transformer is energized with an alternating current (AC), alternating magnetic lines of force, called “flux,” circulates through the core, establishing a magnetic field. ![]()
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