There are many different types of transformers used in electrical systems and devices. Choosing the right type of transformer, including single or three phase autotransformers, will be essential in ensuring the optimal functioning of the system, device or component.
For many applications, 3 phase transformers are the ideal choice. These can be “off the shelf” or ready-made, standard types of transformers that are available to OEMs or as replacement parts to consumers and repair services. There are also custom-made types of 3 phase and single transformers which provide the configurations and options required to work within a specific piece of equipment.
Important Benefits
In general, the use of 3 phase transformers is for higher efficiency needs in systems, devices or components. They are also able to function effectively and supply larger loads of power across a much bigger power distribution grid or system. As they are used to step-up or step-down, or increase or decrease voltages, they are important in all three phase systems.
The design of these transformers allows for less material to be required for the conductor, which means a lower cost transformer that could be constructed using three single transformers linked together. With less material, they are also lighter, which is an important consideration in any type of application.
Smaller size compared to the three single transformer option, they are also a better match for most types of applications. Additionally, and this becomes important in the designing and installation of the transformer, there are only three terminals required for all 3 phase transformers, while each single-phase transformer requires two terminals.
Finally, even with the more complex design of the 3 phase option in transformers, they are easy to install as they are pre-wired and simply need to have the respective wires connected to the three terminals, reducing the risk of installation time and human error.