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IEEE/ANSI C57.12.26-1987

Current Revision

American National Standard for Transformers- Pad-Mounted Compartmental -Type, Self-Cooled, Three-Phase Distribution Transformers for Use With Separable Insulated High-Voltage Connectors, High-Voltage, 34500 Grd Y/19 920 Volts and Below; 2500 kVa and Smaller

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Revision Standard - Superseded.
This standard is intended for use as a basis for determining performance, interchangeability, and safety of the equipment covered, and to assist in the proper selection of such equipment. 1.2 This standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of three-phase, 60-Hz, mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers with separable insulated high-voltage connectors. These transformers are rated 2500 kVA and smaller, with high voltages of 34 500 Grd Y/19 920 volts and below, and with low voltages of 480 volts and below. These transformers are generally used for step-down purposes from an underground primary cable supply

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number C57.12.26
Publication Date April 1, 1987
Language en - English
Page Count 31
Revision Level
Supercedes
Committee Transformers
Publish Date Document Id Type View
April 1, 1987 C57.12.26-1987 Revision