Tertiary Winding of Three Phase Transformer-Electronicsinfos

What is the Tertiary Winding of a Three-Phase Transformer?

A tertiary winding in a transformer is an additional winding that is wound over the primary and secondary windings. The primary and secondary windings are usually used to transfer power between two circuits with different voltage levels.

Purpose Of tertiary winding in a transformer

Voltage stabilization

The tertiary winding can be used to stabilize the voltage of the system by providing a constant voltage that is independent of the load.

Reactive power compensation

The tertiary winding can be used to provide reactive power compensation in the system, which can help to improve the power factor and reduce overall system losses.

Harmonic filtering

The tertiary winding can also be used to filter out harmonic distortion in the system, which can improve the quality of the power supply.

Advantages of Tertiary Winding

1. Improved System Stability
2. Improved Power Factor
3. Harmonic Mitigation
4. Flexibility

Improved System Stability

The tertiary winding helps to stabilize the voltage of the system by providing a constant voltage that is independent of the load, which improves the stability of the system.

Improved Power Factor

The tertiary winding can provide reactive power compensation in the system, which can improve the power factor and reduce the overall system losses.

Harmonic Mitigation

The tertiary winding can filter out harmonic distortion in the system, which can improve the quality of the power supply and reduce the impact of harmonic distortion on the system.

Flexibility

The presence of a tertiary winding provides flexibility to the transformer, allowing it to be used for a wider range of applications.

Disadvantages of Tertiary Winding:

1. Increased Complexity
2. Increased Cost
3. Increased Size and Weight
4. Reduced Efficiency

Ratings Of Tertiary Winding 

The rating of a tertiary winding depends on the specific application and the needs of the system. The rating of the tertiary winding is typically determined based on factors such as the voltage level, the load requirements, and the power factor of the system. Tertiary windings are generally designed to handle a smaller amount of power than the primary and secondary windings, as their primary function is to provide additional voltage or to perform specific functions such as voltage stabilization, reactive power compensation, or harmonic filtering. The rating of the tertiary winding is usually specified by the manufacturer based on the requirements of the application.