scope:

This standard describes methods for performing tests specified in IEEE Std C57.12.01-1998 ¹ and other referenced standards applicable to dry-type distribution and power transformers. 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.

¹ Information on references can be found in Clause 2.