What Should You Consider When Buying an Electrical Transformer?

Electrical transformers are versatile units that can make sure your business has access to the appropriate type and power of electricity it needs at all times. But if you want to make sure this device lasts and does its job properly, you’ll need to choose the right electrical transformer for your business.

What should you consider for this important decision?

Why Does Your Decision Matter?

First, why should you spend any effort on this? Aren’t all electrical transformers mostly the same?

The short answer is no. Your transformer selection and purchase can impact your business in many ways:

  • Appropriateness. Different types of transformers are made for different types of environments. Some are designed to be more durable, capable of withstanding various demanding elements. Some have a higher capacity than others. If you choose a transformer that isn’t appropriate for your given environment, it could prematurely fail or even pose a safety risk.
  • Energy efficiency. You’ll also need to consider the unit’s energy efficiency. Some types of transformers are much more energy efficient than others, but they may come with some drawbacks, such as being more expensive. You’ll need to think carefully about the trade-offs in these situations.
  • Reliability and longevity. Transformers vary in terms of reliability and for many reasons. Some transformer manufacturers use stronger materials and have more thorough quality assurance systems, all but guaranteeing that their devices will last longer than those of the competition. Ideally, you’ll optimize for the most durable, reliable, and long-lasting transformers possible.

Ultimately, your choice of transformer can end up saving you or costing you a lot of money. The wrong choice can lead to premature failure, higher energy bills, and even destructive incidents. Conversely, the right choice can lower your utility bills, keep your environment safe, and do so for decades.

Key Considerations When Buying an Electrical Transformer

These are the most important considerations to bear in mind when buying an electrical transformer.

  • Dry type vs. padmount. Dry type transformers are relatively new, offering better performance and efficiency. They use circulating air as a cooling system, rather than liquid, and are generally customizable and long lasting. However, they’re exclusively recommended for indoor use. Padmount transformers are designed to be installed on a concrete pad with lockable front doors, and they work much better for public spaces and outdoor conditions. These transformers are also customizable.
  • Capacity. You’ll need to think about your load profile and energy demands so you can choose a transformer with an appropriate capacity level. You’ll also need to think about the future; how might these needs change in the coming years?
  • Size and fit. Obviously, you’ll also need to think about the size and fit of your device. You probably already have a designated footprint for a transformer. Can you be confident that this model will fit there?
  • Voltage levels. Transformers primarily convert voltage, so you’ll need to carefully consider what type of voltage transformation you want in your business.
  • Frequency. Line frequency in the United States is typically 60 Hz. However, in some parts of the world, it’s 50 Hz.
  • Compliance and regulatory standards. The International Electrotechnical Commission (IEC) and the Institute of Electrical and Electronics Engineers (IEEE) set very specific standards for transformer operation. Make sure whatever electrical transformers you purchase comply with these regulatory standards.
  • Energy efficiency. Finally, you’ll need to think about energy efficiency. Some units are much more energy efficient than others, but they may be more expensive upfront.

You can also look at the company offering these devices:

  • History and experience. Companies with more history and experience tend to produce more reliable transformers. That’s not to say that new companies can’t make good products, but you can feel more confident working with an established provider.
  • Knowledge and competence. When you talk to a salesperson, do they seem to know what they’re doing? Are they able to help you find or customize the perfect solution for your needs?
  • Reviews and testimonials. You should also consider looking at reviews and testimonials. Are people happy with the transformers they’ve purchased from this supplier in the past? What kinds of things do people have to say about their experiences?
  • Range of products available. Most transformers are customizable, but is this manufacturing partner capable of customizing them to your liking?
  • Service and support. Don’t underestimate the importance of customer service. Choose a partner who will stand by you in case something goes wrong.

Your choice of transformer is far from straightforward, but if you know what you’re looking for and you can vet manufacturers properly, you should be able to find the right fit. Not only will you get a transformer that serves your needs perfectly, but you’ll also maximize the lifespan of that device.

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