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IEEE C57.12.91

2011 Edition, December 7, 2011

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Test Code for Dry-Type Distribution and Power Transformers



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Description / Abstract:

This standard describes methods for performing tests specified in IEEE Std C57.12.01™ and other referenced standards applicable to dry-type distribution and power transformers.1 It is intended for use as a basis for performance, safety, and the proper testing of dry-type distribution and power transformers.

This standard applies to all dry-type transformers except instrument transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, and mine transformers.

Purpose

The purpose of this standard is to provide information regarding the procedures for the testing of dry-type transformers. Transformer requirements and specific test criteria are not a part of this standard but are contained in appropriate standards such as IEEE Std C57.12.01 or in user specifications.

1 Information on references can be found in Clause 2.