There are many different types of electrical transformers, each designed for different applications and uses. Regardless of the specific design, these components all provide the same purpose. They are included in equipment, machines, and electronics to transfer power between different voltage systems.
In other words, the transformer actually does just what the name says it does. It will take power from one voltage system and pass it through an electromagnetic field to allow another voltage system to flow from the other side of the component.
Dry-Type
Most smaller electrical transformers, including those used in equipment, electronics, and machines, are considered the dry-type of transformer. This means that they do not use oil or other liquids to cool off the system and remove the heat produced by the process. Rather, they rely on the movement of air through the system to dissipate the heat.
By using dry-type transformers, there is no concern with flammable or potentially dangerous fluids in a workplace or in equipment. Additionally, as there is no risk, there is a greater flexibility in where to position these types of transformers within the device, equipment or system.
Know Your Needs
To narrow down your choices for electrical transformers it will be critical to know several details of the system. It will be essential to know the power required for the load. This may be measured in amperes or wattage as well as KVA (1,000-volt amps).
It will also be essential to know the supply voltage, which will be connected to the primary winding on the unit. This is the power into the transformer. It will also be essential to know the power out of the transformer or the load voltage required. Finally, to design any transformer or choose an off the shelf model, you will also need to know the frequency of the supply source, which will also be the frequency of the load.
