Single phase autotransformer are often sought after over three-phase autotransformer for their smaller size, lighter weight and less cost. It uses its single winding design with designated taps for volt input or output depending on the transformer’s function to set up or down.
As a single-phase electrical apparatus, this type of autotransformer makes use of single-phase alternating current, making use of a single voltage cycle. It’s often used for a step-down transmission of currents for lower power levels.
From the point of view of power grids, the single phase autotransformer are ideal for non urban zones requiring less power demand as applied by power companies. They are often used for both residential and commercial needs.
When it comes to appliances in homes or workrooms, single-phase autotransformer are used with an adjustor to course the electrical power through DC current.
Audio systems use these autotransformer adapting speakers to a varied and constant voltage input from audio and matching impedance like when you pair an amplifier to the microphone with differing impedance levels.
Single-phase autotransformers may also be used in soft starting induction motors to run an engine, machinery, electrical heating and even an air conditioner.
These require ventilation openings in its casing placed in dry areas or connected with cooling ducts to dissipate any heating naturally, making the electrical apparatus last longer.
Your choice of using single-phase or three-phase autotransformers will depend on your needs. And when you’ve come to finalize your requirements, you may decide either to purchase new single phase autotransformers or have one custom designed and made.
