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NEMA Standard ST 20-2014 Dry type transformers for general applications

Publication Year

2014

Document Status

Withdrawn

Abstract

Applies to single-phase and polyphase dry type transformers (including both autotransformers and noncurrent limiting reactors) for supplying energy to power, heating, and lighting circuits.

Document History

Superseded by NEMA ST 20-2021.

Publisher Information

National Electrical Manufacturers Association

The National Electrical Manufacturers Association (NEMA) represents electrical equipment and medical imaging manufacturers in North America, providing a forum for the development of technical standards, advocacy of industry policies on legislative and regulatory matters, and dissemination of industry data.

1300 North 17th Street
Suite 900
Rosslyn
NEMA
USA

Website: https://www.nema.org/pages/default.aspx
Tel: +1 703 841-3200