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IEEE C57.96-1999

Historical Revision

IEEE Guide for Loading Dry-Type Distribution and Power Transformers

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Revision Standard - Superseded. Reaffirmed 2004. General recommendations for the loading of dry-type distribution and power transformers that have 80 °C, 115 °C, and 150 °C average winding rises and insulation systems limited to 150 °C, 180 °C, and 220 °C maximum hottest-spot operating temperatures, respectively, are covered in this guide. Recommendations for ventilated, nonventilated, and sealed dry-type transformers having impregnated insulation systems are included.
This guide covers general recommendations for the loading of dry-type distribution and power transformers that have 80 °C, 115 °C, and 150 °C average winding rises and insulation systems limited to 150 °C, 180 °C, and 220 °C maximum hottest-spot operating temperatures, respectively, The guide includes recommendations for ventilated, nonventilated, and sealed dry-type transformers having impregnated insulation systems. For more specific recommendations for a particular transformer, the manufacturer of that transformer should be consulted.
To provide users with a more accurate determination of how to load transformers while maintaining its integrity and to give user of transformers with epoxy windings a loading guide.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number C57.96
Publication Date Oct. 29, 1999
Language en - English
Page Count 48
Revision Level
Supercedes
Committee Transformers
Publish Date Document Id Type View
Jan. 27, 2014 C57.96-2013 Revision
Oct. 29, 1999 C57.96-1999 Revision
Nov. 30, 1989 C57.96-1989 Revision