IEEE Unapproved Draft Std PC57.12.00/D4, Feb 2010 IEEE Draft Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers
Institute of Electrical and Electronics Engineers (IEEE)
Scope
Electrical and mechanical requirements are set forth for liquid-immersed distribution and power transformers, and autotransformers and regulating transformers; single and polyphase, with voltages of 601 V or higher in the highest voltage winding. This standard is a basis for the establishment of performance, limited electrical and mechanical interchangeability requirements of equipment described; ...