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IEEE C57.110-2008

Historical Revision

IEEE Recommended Practice for Establishing Liquid Immersed and Dry-Type Power and Distribution Transformer Capability when Supplying Nonsinusoidal Load Currents

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Revision Standard - Superseded. This recommended practice provides calculation methods to conservatively evaluate the feasibility for an existing installed dry-type or liquid-filled transformer, to supply nonsinusoidal load currents as a portion of the total load. This recommended practice also provides necessary application information to assist in properly specifying a new transformer expected to carry a load, a portion of which is composed of nonsinusoidal load currents. A number of examples illustrating these methods and calculations are presented. Reference annexes provide a comparison of the document calculations to calculations found in other industry standards. Suggested temperature rise calculation methods are detailed for reference purposes.
This recommended practice applies only to two winding transformers covered by IEEE Std C57.12.00, IEEE Std C57.12.01, and NEMA ST20. It does not apply to rectifier transformers
The purpose of this document is to establish uniform methods for determining the capability of transformers to supply nonsinusoidal load currents of known characteristics.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number C57.110
Publication Date Aug. 15, 2008
Language en - English
Page Count 52
Revision Level
Supercedes
Committee Transformers
Publish Date Document Id Type View
Oct. 31, 2018 C57.110-2018 Revision
Aug. 15, 2008 C57.110-2008 Revision
March 30, 1999 C57.110-1998 Revision
April 1, 1988 C57.110-1986 Revision