Zig Zag Transformers

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An alternative to a zig zag transformer is a delta-wye transformer. These electric transformers are a more popular choice because they are better known as well as at times being less expensive than zig zag transformers; however, zig zag transformers have lower internal impedance and can be more effective in certain applications than delta-wye transformers. Read More…

Zig Zag Transformers Zig zag transformers can be used in order to derive a reference point for ungrounded systems. Due to their ability to provide a neutral point for grounding purposes, numerous industries utilize zig zag transformers, including industrial, electronics, petrochemical, power distribution, automotive and hardware.

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. We will never let you walk out the door with a substandard product. If high quality is demanded, that is what we will offer. Let us help you today! Give us a call or visit us online to learn more.

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Johnson Electric Coil Company $$$

Perris, CA  |  951-277-0757

For over 50 years, Triad Magnetics has been designing & manufacturing electric transformers for a wide range of industries. In Triad’s standard product line, they have over 1,000 part numbers, which means you are most likely to find what you're looking for. Whether you need switchmode, wall plug-in, inductors or audio transformers, Triad Magnetics either has it in stock or they can custom design.

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Triad Magnetics $$$

Pelham, NY  |  800-431-1064

At Pico Electronics, we are a big name in small components. Our excellent customer service and support is a wonderful accompaniment to our quality electric transformers. We also have capabilities to provide custom transformers, power transformers, current transformers, isolation transformers, toroidal transformers and high voltage transformers. For more information, contact us today and tell us how we can fulfill your requirements.

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Pico Electronics, Inc. $$$

Cincinnati, OH  |  800-963-9799

Since 1937, we have been specializing in the design and manufacture of custom ferrite transformers, chokes, toroids, inductors, pulse, RF, switching, power telephone balun and other specialties. Check out our website for more information on our full spectrum of products and services.

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Foster Transformer Company $$$

Garland, TX  |  888-530-6682

With the ability to produce either small or large quantity orders, Nova Magnetics is sure to have a custom transformer to meet your needs. Standard transformers include power transformers, electric transformers, dry type transformers, isolation transformers and distribution transformers.

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Nova Magnetics, Inc. $$$

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. When you do business with Lenco, you can do it with confidence that your product was designed and engineered by professionals. Your special application is our specialty, so call Lenco today!

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Lenco Electronics, Inc. $$$
placeholder image Johnson Electric Coil Company Triad Magnetics Pico Electronics, Inc. Foster Transformer Company Nova Magnetics, Inc. Lenco Electronics, Inc.

Zig zag transformers have earned their name from the zig zag design of their winding. Consisting of six coils on three separate cores, zig zag transformers have a primary winding but do not have a secondary winding. The windings for each phase of a zig zag transformer come in two halves. Thus, the difference in winding patterns results from the way in which the two halves of the windings interconnect while connecting the coils and the core.

Three Phase Transformers Zig Zag Transformers - Lenco Electronics, Inc.

On each core, there are two coils. The first coil is connected to the second coil through the windings, of which there are two for each phase. Thus the outer and inner windings are wound onto the same core, but they are wound in opposite directions. While the first coil on each core is connected to the second coil on the next core, the second coils are all wound together and create the neutral.

Since the phases are connected to the first coils, every phase is connected to every other phase, resulting in the voltages being canceled out. In order to provide earthing to ungrounded systems, a resistor is normally inserted between the neutral point of the transformer and the ground in order to limit the ground fault current and its effect on the system.

Zig Zag Transformer Informational Videos