For specialized applications, you’ll probably want to consult a professional transformer company for advice on what kVA you need. A range of transformers designed for intermittent use with a choice of ratings to suit your equipment.

In the guide to transformer kVA ratings below, we’ll explain in more detail how to calculate the required capacity kVA rating. To determine your kVA size, you’ll need to make a series of calculations based on your electrical schematics. In many cases, you’ll want to calculate the primary voltage, which is the voltage the transformer receives from a power source. It is advised that the kVA of the transformer should be equal to or greater than the rating of the load to handle present requirements. Totally enclosed non-ventilated:Totally enclosed non-ventilated transformers may be single-phase or three-phase units.To see the benefits of quality, high-performing transformers in your business, partner with ELSCO Transformers. Encapsulated:A single-phase encapsulated transformer is useful for various general loads, including both indoor and outdoor loads. Please make use of any product reviews or youtube clips we have available to learn more about the item. We are approved suppliers of transformers to organisations such as BAA, BNFL, London Underground and Network Rail.

To use their transformers effectively, businesses need to know how much power their particular transformers can give them.Totally enclosed non-ventilated:As with single-phase units, these three-phase systems are ideal for environments that contain high volumes of dirt and debris.

If the idea of performing calculations when you need to figure out kVA seems daunting or unappealing, you can always turn to charts. The kVA rating will also be affected by the application of the load, for example motors may need an increased kVA rating. Ventilated:A ventilated single-phase transformer is useful for multiple single-phase indoor and outdoor loads. A good rule of thumb is to multiply the voltage by the amperage and then multiply by an additional start factor of 125%.Once you’ve located or calculated these two figures, you can use them to figure out the load’s power requirements in kilowatts. This transformer did good job for us thought it might come with plug but it doesnt it has to be wired in.

Works well,and the sockets are just right some transformer have really tight sockets and can be a pain.

Necessary cookies are required to enable the basic features of this site, such as providing secure log-in or adjusting your consent preferences. Depending if the application is three phase or single phase, this will determine which formula to use. Let’s say you have a transformer with 300 turns in its primary coil and 150 turns in its secondary coil. When you’re doing calculations with three-phase transformers, you’ll need to include a constant to make sure your work comes out correctly. I bought a 5kva transformer and needed it within 3 days as my other one had stopped working and I had an important task to complete.