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…
Leading Manufacturers
Johnson Electric Coil Company
Antigo, WI | 800-826-9741We believe in offering the very best to all customers. We offer a full range of transformers, including electric transformers, current, and toroidal transformers.
Spark Industries
Phoenix, AZ | 602-281-2046Since 1975, we have been leading the way in manufacturing high-voltage, low-power sources. And over the years, we've grown to extend our capabilities by producing specialty transformers, audio coils, inductors, magnetics, printed circuit boards and other electrical components. High quality, competitive price.
Lenco Electronics, Inc.
McHenry, IL | 815-344-2900Lenco 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.
Sun Transformer
McLeansboro, IL | 618-643-2555ISO 9001:2000 registered Sun Transformer creates custom transformers optimized for the needs of many industries. Large power, isolation & auto transformers, printed circuit mount power transformers, units for hostile conditions, units with ferrite or nickel cores for digital telecommunications use, etc.
Wabash Transformer
Addison, IL | 630-628-9999Wabash Transformer Inc. was founded in 1966, and is presently located in Addison, Illinois. This facility offers a full range of Custom and Standard power transformers. Wabash Transformer applications include HVAC, Medical, Pool and Spa, Metering equipment, Household appliances and many others.
Zig Zag Transformers - 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.
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.