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        1. NEMA
        2. Directory
        3. Member Products
        4. Transformers

        Transformers

        ​​A transformer is a static electrical machine that transfers electrical energy between two or more circuits. Transformers are used for increasing or decreasing the alternating voltages in electric power applications, and for coupling the stages of signal processing circuits.

        Products include:

        • Distribution transformers
        • Dry-type distribution transformers (including integral accessories) and underground residential distribution transformers (URT) units (all voltages, single- and three-phase)
        • Large power transformers
        • Liquid-immersed transformers
        • Network transformers
        • Reactor and special-purpose transformers
        • Reactors and voltage regulators

        NEMA Members are involved in addressing and resolving utility-wide issues, while shaping the future of national and international Standards.​

        Staff Contact: Paul Orr

        Transformers-productIMG-300x265
        • Applications
        • Standards
        • Companies
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        • Electric utility transmission and distribution systems
        • Commercial, industrial and governmental facilities
        • Microgrids, distributed energy resources, and renewable energy systems​

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        Technical

        • Develops documents, white papers and guides to educate users on the selection, transportation, installation, operation, monitoring, maintenance and decommissioning of transformers to maximize performance and minimize costs over the transformer's lifetime
        • Administers U.S. Technical Advisory Group (TAG) to the International Electrotechnical Commission (IEC) TC14 (Power Transformers) and TC96 (Transformers, Reactors and Power Supply Units) to promote harmonization of global Standards in alignment with NEMA Member positions and to ensure that foreign markets remain open to Members' transformer products
        • Engages with other Standards Development Organizations (SDOs) on product codes and Standards
        • Coordinates with the NEMA Field Representative Program to work directly with state code officials in all 50 states to promote adoption and implementation of the National Electrical Code® and the National Electrical Safety Code ®, and who respond to Member needs by providing education and training to electrical inspectors to ensure that code provisions are properly enforced

        Advocacy

        • Tracks federal and state policies that affect grid build-out and grid modernization requirements, advocating for policies that positively impact the transformer market
        • Engages with federal policymakers to voice concerns on import tariffs and, when appropriate, submit exemption requests
        • Works directly with federal and state regulatory agencies (e.g., Environmental Protection Agency, U.S. Department of Energy, and the California Energy Commission) on proposed energy efficiency requirements for transformers to ensure that they are not overly burdensome

        • ​Transformers Toolkit

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        Medium and High Voltage Surge Arresters Learn More
        Smart Meters and Meter Sockets Learn More
        Dry-Type and Liquid-Immersed Transformers Learn More
        Shunt and Series Capacitors Learn More
        Medium and High Voltage Insulators Learn More
        Join NEMA Learn More

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