IEEE C57.91-2011

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Revision Standard – Active.This guide provides recommendations for loading mineral-oil-immersed transformers and step-voltage regulators with insulation systems rated for a 65 ¿¿C average winding temperature rise at rated load. This guide applies to transformers manufactured in accordance with IEEE Std C57.12.001 and tested in accordance with IEEE Std C57.12.90, and step-voltage regulators manufactured and tested in accordance with IEEE Std C57.15. Because a substantial population of transformers and step-voltage regulators with insulation systems rated for 55 ¿¿C average winding temperature rise at rated load are still in service, recommendations that are specific to this equipment are also included.

Product Details

Published:

03/07/2012

ISBN(s):

9780738171302, 9780738171319, 9780738171951, 9780738172163, 9781504413879

Number of Pages:

123

File Size:

1 file , 1.5 MB

Redline File Size:

2 files , 3.1 MB

Product Code(s):

STDRL97202, STD97202, STDPD97202, STDPDRL97202, STDPL97202