IEEE C57.91-1981

IEEE C57.91-1981

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New IEEE Standard – Superseded.General recommendations for loading 65 degrees Centigrade-rise mineral-oil-immersed overhead and pad-mounted distribution transformers are covered. Recommendations for 55 degrees Centigrade-rise transformers are included because a substantial percentage of these transformers are still in service. The recommendations are based on winding hottest-spot calculations only. Other factors that may limit the permissible load to lower values are listed. A method to establish winding temperature and loss of life by nomographs is given.

Product Details

Published:
07/31/1981
ISBN(s):
9780738143019
Number of Pages:
26
File Size:
1 file , 1.5 MB
Product Code(s):
STDSU08177

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