• IEEE C57.115-1991

IEEE C57.115-1991

  • IEEE Guide for Loading Mineral-Oil-Immersed Power Transformers Rated in Excess of 100 MVA (65C Winding Rise) (Folded into C57.91
  • standard by IEEE, 12/27/1991
  • Category: IEEE

$79.00 $40.00

Revision Standard - Inactive-Withdrawn.The guide covers modern power transformers rated above 100 MVA, three-phase equivalent and 65¿¿C rise. The general approach is tutorial. Four different types of loading, that is, normal life expectancy loading, planned loading beyond nameplate rating, long-time emergency loading, and short-time emergency loading, are considered. The various effects of loading a transformer in excess of its nameplate rating are discussed. Temperature and maximum loading limitations are suggested.
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