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Normas IEEE americanas electrotécnicas - AENOR

IEEE C57.110-1998

2004-03-25 /Inactive-Superseded
IEEE Recommended Practice for Establishing Transformer Capability When Supplying Nonsinusoidal Load Currents

Revision Standard - Superseded.
Superseded by IEEE Std C57.110-2008. Methods are developed to conservatively evaluate the feasibility of supplying additional nonsinusoidal load currents from an existing installed dry-type or liquified transformer, as a portion of the total load. Clarification of the necessary application information is provided 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 make a comparison of the document calculations to calculations found in other industry standards and suggested temperature rise methods are detailed for reference purposes.


current; eddy-current losses; harmonic current; harmonic load losses; harmonic loss factor; harmonics; K-factor; load currents; nonsinusoidal; transformer

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