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Three Phase Autotransformers

We design dry-type three phase wye autotransformers to meet your custom requirements: special voltage requirements, taps where you need them, terminations to suit your installation, unusual sizes and shapes, and depending on the voltage transformation, up to 500KVA—we do it all! You pay only for what you need, no more, no less.

Three Phase Autotransformer
Three Phase Autotransformer
Three Phase Autotransformer

Johnson Electric Coil Company provides complete design, engineering, and manufacturing services to supply our customers with the finest, most efficient and cost-effective three phase autotransformers. Our three phase autotransformer design and manufacturing capabilities are some of the broadest in the industry. We can fully support our customer’s safety agency requirements with expertise in both domestic and foreign agency requirements. In addition to our specialty engineering and manufacturing services, we work with our customers to customize scheduling, packaging, shipping, billing, and communication practices to meet their unique inventory management, product handling, delivery, and customer service needs. Our goal is to provide a level of quality and service that enables our customers to be leaders in their markets. While we mainly sell in the US, our three phase autotransformers are found all over the world as components in OEM equipment. We pride ourselves on being the only transformer company our customers need.

“Unified - Unselfish - Single Minded
Outstanding Customer Service”