What Is a Single Phase Transformer and How Does It Work?

What Is a Single Phase Transformer and How Does It Work?

Single phase transformers are widely used electrical devices that convert alternating current (AC) voltage from one level to another. These transformers are essential in residential power supply, small-scale industries, instrumentation, and remote energy transmission.

Working Principle of Single Phase Transformers

The core principle of a single phase transformer is electromagnetic induction. It consists mainly of a magnetic core and two windings. When AC voltage is applied to the primary winding, it creates a varying magnetic flux in the core, which induces a voltage in the secondary winding—allowing voltage transformation either up or down.

Basic Structure of a Single Phase Transformer

The typical components of a single phase transformer include:

• Primary winding (connected to the power source)

• Secondary winding (delivers the output voltage)

• Magnetic core (guides magnetic flux)

• Insulation and protective casing

These elements ensure safe and efficient operation.

Specifications and Technical Parameters

Single phase transformers vary based on application. Key specifications include:

• Rated Power: 50 VA to 200 kVA

• Input Voltage: 110V, 220V, 380V

• Output Voltage: 12V, 24V, 48V, 220V

• Frequency: 50Hz / 60Hz

Custom designs are available to suit various needs.

Application Fields

Single phase transformers are used across various sectors such as:

• Residential and commercial lighting

• Home appliances like air conditioners, refrigerators, and washing machines

• Medical and laboratory equipment

• Communication systems and remote monitoring

• Industrial control panels

Advantages of Single Phase Transformers

Compared to three-phase models, single phase transformers offer:

• Lower cost and smaller size

• Easy installation and maintenance

• Better suited for light load applications

• High operational stability and accuracy

About ChinaMC

ChinaMC is a specialized manufacturer of power transformers, offering high-quality single phase and three phase transformer solutions. Our products are certified by CE, ISO, and other international standards. With years of industry expertise, we provide tailored energy solutions to clients worldwide. Contact us today for a detailed catalog and pricing information.