A power transformer typically has three main parts:
- Core: The core is the heart of the transformer. It is made of laminated steel sheets and provides a magnetic path for the flow of magnetic flux.
- Windings: The windings are coils of insulated copper or aluminum wire wrapped around the core. They are responsible for inducing the voltage transformation.
- Insulation: Insulation protects the windings and core from electrical shorts and prevents overheating. It can be made of various materials like oil, paper, or epoxy resin.
Other Components
While these are the main parts, power transformers can also include other components depending on their size and application. These can include:
- Bushings: These are insulated connectors that allow electrical connections to be made to the windings while maintaining isolation.
- Cooling system: This can include fans, radiators, or oil pumps to dissipate heat generated during operation.
- Tank: This is a protective enclosure that houses the core, windings, and other components.
Example
A typical single-phase distribution transformer used in residential areas consists of a core, two windings (primary and secondary), and insulation. It might also have bushings, a cooling system, and a tank.
