Working Group Details
PerfCharac-WGC57.18.10 - Performance Characteristics - Semicon Rectifier Xfrmrs Working Group
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IEEE C57.18.10-1998 - IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers
Practices and requirements for semiconductor power rectifier transformers for dedicated loads rated single-phase 300 kW and above and three-phase 500 kW and above are included. Static precipitators, high-voltage converters for dc power transmission, and other nonlinear loads are excluded. Service conditions, both usual and unusual, are specified, or other standards are referenced as appropriate. Routine tests are specified. An informative annex provides several examples of load loss calculations for transformers when subjected to nonsinusoidal currents, based on calculations provided in the standard.
IEEE C57.18.10a-2008 - IEEE Standard for Practices and Requirements for Semiconductor Power Rectifier Transformers Amendment 1: Added Technical and Editorial Corrections
Amendment to IEEE Std C57.18.10-1998. This standard practice provides rating data, construction requirements, testing, and calculation methods for dry-type or liquid-filled semiconductor power rectifier transformers. These transformers supply nonsinusoidal load currents and are subject to higher harmonic load losses than standard power transformers. A number of examples illustrating harmonic loss calculations are presented in a reference annex.