We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

How Do I Choose the Best Electronic Transformer?

Andrew Kirmayer
Updated May 17, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Transformers are available in many varieties designed to handle specific electrical loads. The application an electronic transformer is used in also determines which one is the best to use. Its capacity in Volt-Amps is how much power input the device can handle before overloading. This is generally equal to the capacity limit in terms of the transformer’s wattage. Made of a steel core and copper or aluminum wire windings, a transformer must be used within its rated range or it will overheat and fail.

Choosing the best electronic transformer depends on the expected load of the application. Times where the typical load increases should be factored in as well. A transformer that has a higher wattage rating should generally be chosen, so that the normal wattage will run at about 90% of its maximum capacity. This prevents damage or a fire in case an overload periodically occurs. Expected amplitude and length of time of the load need to be determined before choosing an electronic transformer.

The transformer’s structural configuration also weighs on the choice. Power loss in the core is sometimes problematic; transformer cores with magnetic steel or which are laminated typically compensate for this problem. Some transformers are filled with liquid, protecting them from overload, but can be more flammable than dry types. Dry transformers are well-insulated but are safe to use only so long as the insulation remains viable.

It is also helpful to find out how long the electronic transformer lasts. This can save on costs in the long run, but also requires an understanding of how well suited it is for the application. Costs for installation, operating the transformer, and performing routine maintenance should be considered as well. Applications where power surges are common, such as industry, require an electronic transformer that can withstand wide power fluctuations. An appropriate device may be more expensive at first but the expenses of fixing or replacing the transformer later on can be avoided.

There are different types of transformers designed for a variety of uses. Some can be used for general purposes, but an electronic transformer is sometimes intended to work with a battery charger, inverter, or voltage regulator. An electronic transformer does not have moving parts, contributing to the relative safety of using it. When multiple devices are used with one transformer, it is important to add up the wattage of all devices that will be connected. This should ensure the transformer operates most efficiently, and that it can be safely used.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Andrew Kirmayer
By Andrew Kirmayer
Andrew Kirmayer, a freelance writer with his own online writing business, creates engaging content across various industries and disciplines. With a degree in Creative Writing, he is skilled at writing compelling articles, blogs, press releases, website content, web copy, and more, all with the goal of making the web a more informative and engaging place for all audiences.
Discussion Comments
Andrew Kirmayer
Andrew Kirmayer
Andrew Kirmayer, a freelance writer with his own online writing business, creates engaging content across various...
Learn more
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.