What is ANSI C57.12.01?

IEEE Standard C57.12.01-2015 (Revision of IEEE Standard C57.12.01-2005) is the IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers.

This standard covers the electrical and mechanical requirements of ventilated, non-ventilated, and sealed dry-type distribution and power transformers or autotransformers (single and polyphase, with a voltage of 601 V or higher in the highest voltage winding).