Alliance Partners

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The stator winding is the most critical component of a large power generator. With a proven track record and an unsurpassed product offering, NEC is widely recognized as the "Preferred Supplier" for High-Voltage stator coils for major rebuilders of power generation equipment.


NEC High Voltage Stator Winding Products

Copper rectangleWell-know as the world leader, NEC has over 11,500 square meters of manufacturing space dedicated to high voltage coils and bars.  As a part of its service, NEC redesigns windings of all types for units up to and exceeding 1000MW.  NEC's stator windings products range from diamond coils and Roebel bars to the most sophisticated direct-cooled bars, including for inner liquid and gas-cooled types.  NEC also specializes in the manufacture of windings for "legacy" or discontinued brands.  Currently NEC produces over 15,000 stator coils a year under an ISO 9001:2000 certified quality management system.


NEC is unique in its on-site capabilities to
manufacture and insulate copper wire to
design specifications, greatly reducing
production lead times.

bar taping rectangleExpertise & Experience

Many of NEC's engineering staff of 24 began their careers with various OEMs and have advanced degrees specializing in Power and Machine Design. In addition to support for our High Voltage coil product lines and major uprates, NEC engineers are also actively involved with industry conferences and technical committees for various professional organizations, including EPRI, CIGRE, IEEE and ASME, among others.


Automated taping machines speed manufacture
with the simultaneous application of multiple
layers of groundwall insulation.


NEC Has the Ability to Execute on Time & Within Budget!

  • NEC's Texas manufacturing facility is the largest most well-equipped of its kind in the world. Its equipment and staff is exclusively dedicated to HV windings.
  • NEC has OEM level engineering, production, project, and service management staff with extensive experience on a wide variety of machines
  • NEC's High Voltage coil products deliver OEM equivalent resources at a value unsurpassed by others."

National Electric Coil

800 King Avenue
Columbus, Ohio 43212
Phone: 614-488-1151
FAX: 614-488-8892

National Electric Coil

3330 East 14th St
Brownsville, Texas 78521
Phone: 956-541-1759
FAX: 956-541-1759