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
Learn More - Status
- Active Standard
- PAR Approval
- 2013-02-01
- Superseding
- 638-1992
- Board Approval
- 2013-12-11
- History
-
- Published:
- 2014-03-11
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More - Sponsor Committee
- PE/TR - Transformers
Learn More - Working Group
-
PwrTrans-638 - Qualification of Class 1E Transformers for Nuclear Power Generating Stations, Revision to IEEE 638 Working Group
Learn More - IEEE Program Manager
- Malia Zaman
Contact - Working Group Chair
- Craig Swinderman
No Active Projects
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards