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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. Read More…

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 an electric transformer that can change the voltage of the electricity transmission line.
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Leading Manufacturers

Antigo, WI  |  800-826-9741

We believe in offering the very best to all customers. We offer a full range of transformers, including electric transformers, current, and toroidal transformers.

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Johnson Electric Coil Company $$$

Perris, CA  |  951-277-0757

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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Triad Magnetics $$$

McHenry, IL  |  815-344-2900

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.

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Lenco Electronics, Inc. $$$

Anaheim, CA  |  800-325-0501

When it comes to electric transformers we are your ‘go to` people! Our products serve in many diverse industries, but primarily in the induction heating industry. Our teams of designers and engineers will work closely with you in order to come up with a product that will fit all of your needs. For more information get in touch with us today via telephone or email to learn how to get started!

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Pacific Transformer Corporation $$$

Milwaukee, WI  |  800-276-2462

Badger Magnetics designs and manufactures electric transformers, differential transformers, power transformers, pulse transformers, single and three phase transformers, toroidal transformers, inductors and more. As a leader in the electromagnetic product market, we have over 40 years of experience and will help you with your unique applications. We serve OEM, commercial & industrial markets.

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Badger Magnetics, Inc. $$$
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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.

Encapsulated Power Transformer Power Transformers - Triad Magnetics

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.

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