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.

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Johnson Electric Coil Company $$$

Stockton, CA  |  800-628-1123

West Coast Magnetics is a leading supplier of standard and custom transformers and magnetics to OEM manufacturers of electrical and electronic equipment. Standard options include current transformers, power inductors, base drive transformers and more. Additionally, our engineering department has extensive experience in the design and build of custom power transformers suited to your application.

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West Coast Magnetics $$$

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 $$$

Trenton, NJ  |  800-747-0845

Established in 1968, Power Magnetics engineers and manufactures electric transformers, low and high voltage transformers, current transformers and distribution transformers. We also can produce custom transformers to meet your needs.

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Power 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.

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Lenco Electronics, Inc. $$$
placeholder image Johnson Electric Coil Company West Coast Magnetics Pacific Transformer Corporation Power 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