IEEE C57.91-1981

Description

New IEEE Standard – Superseded.General recommendations for loading 65 degrees Centigrade-rise mineral-oil-immersed overhead and pad-mounted distribution transformers are covered.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

Note:

This product is unavailable in Russia, Belarus