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Isolation Transformer Manufacturer
Used for product safety and efficiency by preventing signal interference of various sorts, and directing power between independent circuits that cannot be directly connected for a variety of reasons. All transformers have some isolation characteristics, but isolation transformers have special electrical insulation and are tested and specified for performance. Agile Magnetics has the coveted UL E160724 listing for insulation.
Shielded transformers, also known as Faraday transformers, are isolation transformers with a grounded conductor between the primary and secondary windings. This shielding protects against voltage spikes and AC or even DC noise in the AC current. Often the most significant source of noise is from neutral to ground and the an isolation unit is usually employed for this. Sometimes these shielded transformers are daisy chained with two or more units providing exceptional shielding. A shielded transformer is often preferred due to its expanded isolation capability.
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Many medical devices and medical device OEMs have requirements for high voltage transformers that also require isolation between the windings to prevent arcing. This isolation of the transformer windings can only be achieved through proper design and proper insulation.
A common marine application is found in harbors where metal-hulled ships often have isolation transformers for the ship-to- shore power supply used when the engines are not running. This prevents electrical continuity between the ship and the shore power, eliminating problems with galvanic corrosion. Also ships from some European countries use a different neutral ground arrangement and an isolation transformer can provide an effective solution. Agile Magnetics is an expert at the design, build, and production of isolation power transformers for marine applications.
Specifications that Agile requires to design a custom isolation transformer is:
- input voltage
- output voltage of the application,
- application load amperage,
- operating frequency
- single of three phase design
- shielding requirements
- other non-performance factors like specific application, projected quantity, and environmental constraints
Isolation transformer limitations: These units will not work for applications where the voltage constantly changes, only where it is consistently different that what is needed.
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Agile Magnetics, Inc. / 24 Chenell Drive, Concord, NH 03301 / Toll-Free: 800-805-8991 / Fax: 603-410-6434