IEEE C57.12.00

Abstract

This standard describes electrical and mechanical requirements of liquid-immersed distribution and power transformers, and autotransformers and regulating transformers, single-phase and polyphase, with voltages of 601 V or higher in the highest voltage winding. <br>This standard applies to all liquid-immersed distribution, power, and regulating transformers that do not belong to the following types of apparatus: <br>a) Instrument transformers <br>b) Step voltage and induction voltage regulators <br>c) Arc furnace transformers <br>d) Rectifier transformers <br>e) Specialty transformers <br>f) Grounding transformers <br>g) Mobile transformers <br>h) Mine transformers <br><strong>Purpose</strong> <br>This standard is a basis for the establishment of performance, and limited electrical and mechanical interchangeability requirements of the equipment are described. It is also a basis for assistance in the proper selection of such equipment.