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NEMA TR 1

2013 Edition, January 1, 2013

Complete Document

Transformers, Step Voltage Regulators and Reactors



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Referenced Items:

ANSI C57.12.20
ANSI C57.12.22
ANSI C57.12.23
ANSI C57.12.25

Product Details:


Description / Abstract:

This standards publication applies to single phase and poly phase power and distribution transformers (including step-voltage regulators and reactors). This standard excludes dry type transformers covered by NEMA ST20. This publication provides a reference list of applicable ANSI and IEEE C57 standards.

In addition, this publication includes certain NEMA standard test methods, test codes, properties, etc. of liquidimmersed transformers, step-voltage regulators, and reactors that are not IEEE standards.
ANSI/NEMA MW 1000, 2014