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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.

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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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Triad Magnetics' pioneering design process promotes innovation and there are thousands of Triad designs providing application solutions throughout the world. Triad's talented engineers are experienced in a wide range of services, which is revealed and appreciated in Triad's precision manufactured power transformers. Please call Triad today or go to their website for more information.
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A full-service electronic component solutions firm, MCI is the premier source for custom transformers, including power transformers, 3 phase transformers, current transformers, and much more. We provide expert design and development assistance to produce a custom transformer that meets all your requirements. We offer you rapid prototyping and project management, so that you get your solution quickly and efficiently!
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Our power transformers are second to none! For over 26 years, we have been manufacturing top of the line products and we are sure to have something for you! Our skilled engineers and technicians will work with you from design to delivery in order to come up with a product that will fit your individual needs while maintaining exceptional quality. For more information visit us on the web or send us an email today!
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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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Industry Information
View A Video on Power Transformers - A Quick Introduction

Power Transformers

Power transformers are electrical devices that transform voltage levels. Power transformers are essential utilities in the regulation of the flow of electricity from power plants to substations, from substations to transformers and from transformers to homes and places of business. Each of those steps is a transformation, and each step requires a transformer that can change the voltage of the electricity transmission line.

When power is generated at a power plant, it is transmitted through a very high voltage line; the voltage of such high capacity lines can be as high as several hundred thousand volts. From there, the high voltage lines are directed to power substations. A power substation involves several transformers that reduce to voltage to a few thousand volts; this number is usually around 7,000 volts. The substation outputs its voltage throughout several transmission lines, each of which transmits its own 7,000 volts. These transmission lines end at another kind of transformer; these transformers are often mounted on utility poles outside homes and places of business. It is from these comparatively small transformers that the appropriate voltage for use in homes and places of business is distributed. By the time the voltage from this transformer reaches an individual power outlet, it usually ranges between 120 and 220 volts (in the United States and some other countries). 

Power transformers are used primarily to couple electrical energy from a power supply line to a circuit system. They provide the power source for all of the electronic devices used in homes and places of business. There are many variations among power transformers. Power transformers may be dry-type or cast coil design and be pole-mounted, pad-mounted, or wall-mounted. They can have 3R or 4 enclosures. Power transformers are also available with aluminum or copper windings. Some considerations for the choice of a power transformer include the voltage that is available, the voltage load required for equipment, current and future KVA load, Hz frequency, single or three phase needs, auto or double winding, mounting configuration and whether the transformer will be used indoors or outdoors. Transformers can also be used to manage the currents transmitted through underground power lines. They are necessary for the safe and effective function of the largest and smallest electronic devices in industry, commerce and in consumer products contexts.

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