How Transformers Control Voltage in Transmission Lines

Power systems work best when voltages remain constant since electrical infrastructure, machines, and devices only function optimally at specific voltages. Professionals use tap-changing transformers to control voltage across transmission and distribution lines.

Tap-changing systems change the EMF equation of the transformer through an alternating current delivered to the primary winding. The winding is a paper-insulated conductor that carries conductors via sections wound around core sections. The magnetizing current produces an alternating flux that runs to the secondary winding. Then, the number of secondary turns defines the secondary voltage of the transformer. Altering the transformer turn ratio helps the system make adjustments.

Read More on Strikingly