{"id":3970,"date":"2025-07-11T14:23:15","date_gmt":"2025-07-11T12:23:15","guid":{"rendered":"https:\/\/www.fasarelettronica.com\/?page_id=3970"},"modified":"2025-07-11T14:23:15","modified_gmt":"2025-07-11T12:23:15","slug":"autotransformer-speed-controllers","status":"publish","type":"page","link":"https:\/\/www.fasarelettronica.com\/en\/autotransformer-speed-controllers\/","title":{"rendered":"Autotransformer speed controllers"},"content":{"rendered":"

AUTOTRANSFORMER SPEED CONTROLLERS<\/h1><\/h1><\/div>

Autotransformer speed controllers are reliable and versatile devices, ideal for controlling the speed of single-phase electric motors in various industrial and civil applications. These controllers use an autotransformer to control and vary the voltage applied to the motor, allowing precise, smooth and stable speed control. The perfect sinusoidal shape of the output voltage also ensures silent operation of the motor.<\/p>\n

The autotransformer is a transformer with a single winding that acts as both primary and secondary, allowing the output voltage to be varied proportionally to the input voltage. By varying the transformation ratio, the voltage supplied to the motor is modified, influencing its rotation speed: the higher the voltage, the higher the motor speed, vice versa, by reducing the voltage, the speed is reduced.<\/p>\n

Main advantages:<\/p>\n