Power outages and voltage fluctuations are one of the common problems in every industry. To fight against the problem, transformers are the only solution that is widely used in global industries. The device is ideal for supplying the constant supply of power and also for regulating the rise and fall of the supply voltage. Transformers are the windfall for industries facing power distribution and transmission problems. An autotransformer is an electrical device that has a single winding. It gives you a higher voltage supply required for the correct application of the device. It uses the principle of self-induction.

Advantages of an auto transformer:-

• Less expensive: There is a wide range of transformers available on the market and you need to choose the device for your application. But the auto transformer is known for its eco-friendly nature and affordable prices. Actually, they are cheaper in cost and high in performance.
• Compact size: All industries are concerned about the availability of space to install the device and generally avoid installing large and bulky devices. The device is available in the market in a compact size which may give you better results with the smaller size. Typically used to increase the voltage requirement for the application.
• Voltage regulation: The main purpose of using the device is to regulate the voltage supply to provide the evenly distributed power for the applications. The two winding device costs you more and there is more copper loss. However, autotransformers are the best for voltage regulation and less copper loss.

Application usage of an auto transformer:-

• Transmission and distribution of energy: The device is frequently used in power applications to interconnect systems with each other and operate with different KVA sizes. Apart from this, it is used to adapt the built-in machinery in the industry. It is also used to provide a constant supply of voltage while providing the average voltage near the source.
• Audio system: In audio applications, the device is used to adapt speakers to provide constant voltage to the audio distribution system. It is also used to match impedance.

Railways: The device is arranged to supply constant power and is also used as a voltage regulator. It gives a small boost to the distribution cable and also corrects the drop. It is used to increase the supply voltage, but due to single winding operation, it cannot reduce the supply voltage.