Auto Transformers Manufacturers and Suppliers

IQS Directory provides an extensive list of auto transformer manufacturers and suppliers. Utilize our website to review and source auto transformer manufactures with our easy-to-use features which allow you to locate auto transformer companies that will design, engineer, and manufacture auto transformers for your exact specifications. Our request for quote forms make it easy to connect with leading auto transformer manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for electrical transformers, auto transformer coils, or auto transformer alternatives.

  • Perris, CA

    With more than 500 current transformer manufacturers in the world, Triad Magnetics realizes you have a choice. Why choose Triad? Having served the needs of many industries for more than half a century, Triad believes its experience makes the difference. And if there is one point experience has taught it, it is that it must remain flexible and adaptable to the changing needs of the market.

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  • McHenry, IL

    Lenco Electronics, Inc. specializes in a wide variety of custom electric transformers. Lenco’s success has not come about by accident, but by providing its customers with high-quality products. When you do business with Lenco, you can do it with confidence that your product was designed and engineered by professionals. Your special application is our specialty, so call Lenco today!

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  • Johnsburg, IL

    Prem Magnetics was organized in 1972 as the Magnetics Division of Prem Enterprises (a machine shop) to be a manufacturer of coils and transformers. Prem Magnetics remains a leader in the transformer industry. In addition to our Illinois production facility, Prem operates a facility in Tecate, Mexico to manufacture products to the same quality standards. We are located roughly 40 miles northwest of Chicago, allowing access to anywhere in the world via numerous shipping hubs.

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  • Fombell, PA

    Acutran is a manufacturer of low and medium voltage dry type transformers, reactors, inductors, neutral grounding and control power magnetics from 10VA up to 3MVA, and as high as 25kV. Since 1983, we have proven ourselves repeatedly in the world’s most demanding applications, fulfilling requirements small or large, or for single or multiple runs. For reliable service, you can count on Acutran!

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Auto Transformers Industry Information

Auto Transformers

An auto transformer, also referred to as an autoformer, is a general term for an electrical transformer with one winding, as compared to more traditional two-winding transformers. Transformer windings are coils wrapped around a magnetic core. Since auto transformers have fewer windings and a smaller core, they are often used as alternatives to two-winding transformers, such as isolation transformers, because they are often more efficient as well as being less-expensive and physically smaller.

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Applications of Auto Transformers

Some typical applications of autotransformers include use as voltage regulators and speaker adapters, as well as to simulate low line conditions for testing, interconnect systems, and impedance matching. While auto transformers have many advantages over two-winding transformers, 3 phase transformers are used in applications in which autotransformers are not appropriate. Such applications include controlling harmonic currents and providing a source of ground fault currents. Used in equipment such as motor starters, boosters, and static balancers, auto transformers are often used in the automotive, commercial, power transmission, electronics, telecommunications, and marine industries.

Auto Transformer Design and Function

Auto transformers consist of a single winding and an input and output circuit. Common to both circuits, the winding has at minimum three electrical connection points that are referred to as taps. The voltage source and the load are both connected to two of the taps. One tap at the end of the winding serves as a common connection to the source and the load circuits. The lack of insulation between the input and output circuits is a disadvantage of auto transformers because a failure of the winding could result in the full input voltage being applied to the output.

Notable Types of Auto Transformers

There are many different types of auto transformers, including zig zag transformers, step-up transformers, step-down transformers, and variable autotransformers. Zig zag transformers are special-purpose transformers that are intended for use in providing earthing for ungrounded electrical systems. Step-down transformers convert higher voltages to lower voltages by having fewer secondary coil windings, while step-up transformers' higher number of secondary coil windings allow them to convert lower voltages to higher voltages. Variable auto transformers are only applicable for low voltage designs and are often referred to as variable AC transformers.

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Triad Magnetics Announces New 2018 Catalog

  Triad Magnetics Announces New 2018 Catalog   Comprehensive Magnetics and Power Solutions Catalog For Design Engineers   Perris, CA—February 6, 2018—With the introduction of its new 2018 Power Solutions Catalog, Triad Magnetics makes it easier than ever for electronics engineers to find and specify the right standard or custom transformers, autotransformers, inductors and power supplies for power conversion, filtering, isolation and other applications.             Triad’s 2018 Catalog is the biggest ever at 96 pages, providing color photos, technical data, circuit schematics and outline dimensional drawings... Read More About This