Power Transformers Manufacturers and Suppliers

IQS Directory provides an extensive list of power transformer manufacturers and suppliers. Utilize our website to review and source power transformer manufactures with our easy-to-use features which allow you to locate power transformer companies that will design, engineer, and manufacture power transformers for your exact specifications. Our request for quote forms make it easy to connect with leading power 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 power level transformers, power transformer lines, or power transformer devices.

  • Antigo, WI 800-826-9741

    Since its founding by Lawrence Johnson in 1934, the Johnson Electric Coil Co. has prided itself on being a family owned and operated manufacturer committed to making the finest power transformers with American labor. Johnson is proud of its heritage and committed to maintaining the commitments made by Lawrence to care about its people, customers and products at the highest level.

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  • Phoenix, AZ 602-281-2046

    Since 1975, we have been leading the way in manufacturing high-voltage, low-power sources. And over the years, we've grown to extend our capabilities by producing specialty transformers, audio coils, inductors, magnetics, printed circuit boards and other electrical components. High quality, competitive price.

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  • McHenry, IL 815-344-2900

    Supplying quality power transformers since 1973, Lenco has shown steady growth, both financially & in plant space & today their state of the art manufacturing facility measures approximately 22,000 sq.ft. with an additional 10,000 sq. ft. manufacturing facility in Mexico. Lenco is proud of its experienced, 85 member staff, over 50 percent of which have 10 or more years vested with Lenco.

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  • McLeansboro, IL 618-643-2555

    ISO 9001:2000 registered Sun Transformer creates custom transformers optimized for the needs of many industries. Large power, isolation & auto transformers, printed circuit mount power transformers, units for hostile conditions, units with ferrite or nickel cores for digital telecommunications use, etc.

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  • Addison, IL 630-628-9999

    Wabash Transformer Inc. was founded in 1966, and is presently located in Addison, Illinois. This facility offers a full range of Custom and Standard power transformers. Wabash Transformer applications include HVAC, Medical, Pool and Spa, Metering equipment, Household appliances and many others.

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Triad Magnetics Announces New 2018 Catalog

Comprehensive Magnetics and Power Solutions Catalog For Design Engineers   Perris, CA— 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 for hundreds of products. The catalog also includes information on design... Read More

Triad Magnetics Introduces VPT Series Toroidal Power Transformers

Corona, CA—January 26, 2011— Triad Magnetics has released a new VPT Series Toroidal Power Transformers for electronics design solutions. The new design offers a 97.4 efficiency and uses 30 percent less material than previous designs. This new green power solution is smaller and lighter than other transformer products. Unique toroidal construction reduces stray fields, minimizes sizes, and increases unit efficiency. The transformers have a Class B, UL approved insulation system with 4000V primary to secondary isolation. Transformers start in price from $12 up and come in quantities of 100. For... Read More

businessIndustry Information

Power Transformers

Transformers, by definition, are electromagnetic components that are used to convert different levels of voltage and transfer energy from one circuit to another. The role of power transformers, particularly, is crucial in ensuring that energy is safely and efficiently transferred from a power supply line to a system of circuits, most notably in homes or businesses. Power transformers come in a variety of configurations. Some examples include wall-mounted, pad-mounted, and pole-mounted transformers, and can feature three or four enclosures. Power transformers are also equipped with sets of conductive windings, which are typically made from copper or aluminum. Some varieties of transformers are also made to transfer electric currents through underground power lines. Transformers are essential in transferring power within commerce and consumer contexts, no matter the size of the electronic device.

A specific example of a configuration of power transformer is a toroidal transformer. This variety of power transformer is donut-shaped, or toroidal, and can be manufactured with two sets of primary and secondary coils each. This allows for the transformer to be highly versatile in both its voltage intake and output. In addition, these sets of coils are isolated from both each other and the transformer’s core, which allows for minimal electric discharge. A specific example of an industry that uses these transformers extensively is the medical industry. It is important that the voltage level is carefully regulated so that it does not damage sensitive medical equipment and in turn compromise the safety of patients and medical employees. Transformers are vital for use in medical lab equipment, hospital beds, patient monitoring equipment, and dental chairs. Outside of the medical industry, items such as electric shavers, hair dryers, and other hand-held devices greatly benefit from these transformers.

The process of transforming power consists of a series of steps, and a transformer is required for each step in changing the voltage level during transmission. These steps involve the transformation from the power plant to a substation, then from the substation to a transformer, and from a transformer to a business or home. Within a power plant, electric power travels through a high voltage line. The voltage level of the power at this stage can reach up to several hundred thousand volts. The high voltage power is transferred to power substations, which involve a series of transformers that lower the voltage level to as low as 7,000 volts. From the substations, the power travels down several transmission lines, each transmitting 7,000 volts, to another transformer. This transformer is typically found mounted on utility poles outside of various buildings. These transformers are responsible for converting the voltage to a level which is suitable for the corresponding home or business. In the United States, the voltage level is reduced to as low as 120 to 220 volts by the time it leaves the transformer and reaches power outlets.

There are several considerations that can be made in finding the appropriate transformer for your desired application. These considerations include:

  • Amount of voltage
  • Voltage load required for the equipment
  • Current and future KVA load
  • Single or three-phase requirement
  • Hz frequency
  • Whether the transformer will be utilized indoors or outdoors

Manufacturers of power transformers fabricate their products with countless combinations of features. Therefore, it is highly recommended to consult with a manufacturer, as they will work with you in finding the right equipment.

Power transformers have quite a few capabilities, but they are not without fail. These devices play such a crucial role in providing power for everyday appliances that it can be worrisome to think about what an extended outage can lead to. Sometimes, temporary outages can happen due to the failure of power transformers can fail, much like the way a power line can fail due to exposure to certain conditions. Causes of a transformer failure can range from animals, wind, rain, sun, snow, fallen trees, or some other object that crashes into it. Sometimes the cause of the outage can be internal, such as the transformer overheating. With today’s technology, it typically does not take long to identify the problem and get the transformer up and running again. Since manufacturers do not fabricate power transformers frequently, natural disasters such as tornadoes, hurricanes, and solar flares could lead to power plants becoming damaged and manufacturers being unable to provide an immediate replacement. Fortunately, recent technology has enabled us to predict when and where natural disasters can occur, as well as its severity. Research in natural disasters can play a role in ongoing technological developments to improve how power plants and transformers operate.

Power Control Transformer
Encapsulated Power Transformer
Toroidal Power Transformer
Power Control Transformer – Triad Magnetics
Encapsulated Power Transformer – Triad Magnetics
Toroidal Power Transformer – Triad Magnetics
Quick Pack Power Transformer
Triad PC mount power transformers
Chassis Mount Power Transformer
Quick Pack Power Transformer – Triad Magnetics
Triad PC mount power transformers – Triad Magnetics
Chassis Mount Power Transformer – Triad Magnetics
More Power Transformers Information

Power Transformer Informational Videos