Choosing the Right Transformer.
There are a variety of transformers with a wide array of sizes. The right transformer will depend on its application. Here are the steps to choose the right transformer:
1. Determine a Single or Three Phase
Choosing a single or three phase transformer depends on the application. For industrial usage, choose three phase. For relatively low power appliances, a single phase is adequate.
2. Determine the size of the transformer
A transformer’s capacity is determined by the KVA. It is the product of the higher voltage (V) of the primary and secondary times the current (A).
REMINDER: Always choose a transformer with a KVA larger than the load.This is crucial for safety purposes and it allows for expansion when a larger load is connected in the future.
Undersizing a transformer will cause unnecessary heating and can result in the failure of the unit and damage to the loads connected to it.
Use this formula to calculate the KVA for your transformer:
3. Auto vs Isolation Transformer
Once the KVA and phase of the transformer is determined, choose the type of transformer. The table below compares the auto and isolation transformer:
4. Select your transformer
Browse our Products to view more details in the type of transformer chosen. Please do not hesitate to contact our Marketing Support if you have further inquiries.
