Inactive-Reserved Standard

IEEE 638-2013

IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations

Procedures for demonstrating the adequacy of new Class 1E transformers, located in a mild environment of a nuclear power generating station, to perform their required safety functions under postulated service conditions are presented. Single- and three-phase transformers rated 601 V to 15 000 V for the highest voltage winding and up to 2500 kVA (self-cooled rating) are covered. Because of the conservative approach used in the development of this new standard for new transformers, the end-point criteria cannot be used for in-service transformers.

Sponsor Committee
PE/TR - Transformers
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Status
Inactive-Reserved Standard
PAR Approval
2013-02-01
Superseding
638-1992
Board Approval
2013-12-11
History
Published:
2014-03-11
Inactivated Date:
2024-03-21

Working Group Details

Society
IEEE Power and Energy Society
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Sponsor Committee
PE/TR - Transformers
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Working Group
638 - Power Transformers - Qualification of Class 1E Transformers for Nuclear Power Generating Stations
IEEE Program Manager
Patrycja Jarosz
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Working Group Chair
Craig Swinderman

Other Activities From This Working Group

Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.


P638

Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations

This standard provides requirements to demonstrate the adequacy of new Class 1E transformers, located in a mild environment of a nuclear power generating station as defined in IEEE/IEC 60780-323, to perform their required safety functions under postulated service conditions. This standard applies to single- and threephase transformers rated 601 V to 15 000 V for the highest voltage winding and up to 2500 kVA (base rating).

Learn More About P638

Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.


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These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.


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