Working Group Details
DryType-WGC57.12.91 - Dry Type Transformers - Test Code Working Group
|Working Group Chair||
|IEEE Program Manager|
Methods for performing tests specified in IEEE Std C57.12.01-1989 and other referenced standards applicable to dry-type distribution and power transformers are described. This standard 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.
IEEE C57.12.91-2020 - IEEE Approved Draft Standard Test Code for Dry-Type Distribution and Power Transformers
This revision addresses substantive changes to Clause 5, Clause 1 10, and Clause 11 of IEEE Std C57.12.91-2011 to reflect current practice in the testing procedures of dry-type transformers. This revision does not address transformer requirements and specific test criteria; rather they are contained in appropriate standards such as IEEE Std C57.12.01 or in user specifications.