Isolation Transformers

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Isolation transformers are usually so named because they are designed specifically for the isolation of electricity. Power transformers distribute electricity for use in electronic devices. Read More…

Isolation Transformers Isolation transformers are tools used to transfer electricity from a power source to a device; the main difference between isolation transformers and other transformer varieties is that isolation transformers isolate the devices they supply from the source of electricity. Technically speaking, all transformers are isolation transformers. This is because all transformers transform electricity through induction instead of through conductors.

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 $$$

Houston, TX  |  832-400-4985

AMGIS can supply your company with a variety of toroidal power products. Whether the application requires power toroidal transformers, toroidal inductors, commercial or medical isolation transformers, 3 phase transformers, auto transformers, high efficiency transformers for renewable energy, or custom toroidal applications, Amgis has a solution for your needs.

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Amgis Toroidal Power Products $$$

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. $$$

Telford, PA  |  267-384-5231

For half a century, Magnetic Specialties has created specialized electrical control components, subassemblies and devices for original equipment manufacturers of industrial equipment. Our business components include electric transformers, high accuracy instrument transformers, specialty transformers, toroids, inductors, filter, magnetic amplifiers and more. To learn more give us a call today.

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Magnetic Specialties, Inc $$$

Johnsburg, IL  |  815-385-2700

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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Prem Magnetics Inc. $$$
placeholder image Johnson Electric Coil Company Amgis Toroidal Power Products Lenco Electronics, Inc. Magnetic Specialties, Inc Prem Magnetics Inc.

The voltage that leaves a power generation plant is much too high to be appropriate for use in a single home. It must first be transformed by a high voltage transformer. After that, the electricity is transformed by a series of other transformers before it reaches power outlets.

Single Phase Isolation Transformer Isolation Transformers - Johnson Electric Coil Company

Isolation transformers are not used to change voltage. Instead, they isolate two conductive elements in a transmissive system to prevent unwanted discharge of electricity while still allowing for the controlled transmission of electricity. Isolation transformers are important safety features in a wide variety of electronic devices, particularly hand-held consumer devices like hair dryers and electric shavers.

Isolation transformers are used to reduce or eliminate noise and create the equivalent of a dedicated or isolated ground circuit. An isolation transformer does not impart stepping voltage or current increases or decreases. The "shielding" feature of isolation transformers furthers the assurance that stepping voltage and current rise and fall does not allow power line or electromagnetic noise.

Stand-alone isolation transformers serve the purpose of removing common mode noise. Isolation transformers are used in applications such as audio systems, avionics, data communications, industrial control panels, medical electronics, light fixtures, motor controls, robotics, test and measurement systems, and uninterrupted power supplies (UPS), among others. Isolation transformers use galvanic isolation to prevent the unwanted discharge of electricity.

Galvanic isolation involves the prevention of charged particle movement between conductors. Galvanic isolation still allows for the transmission of charged particles through induction and other means, which means that it does not prevent the functioning of an electrically transmissive system. The development of isolation transformers was a major contribution to the safety of many electronic devices.

Isolation Transformer Informational Videos