IEEE 638-1992

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

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New IEEE Standard - Superseded. 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 standard for new transformers, the end-point criteria cannot be used for in-service transformers.
This standard provides requirements to demonstrate the adequacy of new Class IE transformers, located in a mild environment of a nuclear power generating station as defined in IEEE Std 323-1983 [16]1, to perform their required safety functions under postulated service conditions. This standard applies to 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).
The purpose of this standard is to provide specific qualification procedures for Class lE transformers to demonstrate their capability to meet the requirements of IEEE Std 323-1983 [16]. The transformer must perform its intended function under all specified service conditions.


SDO	IEEE: Institute of Electrical and Electronics Engineers
Document Number	638
Publication Date	June 22, 1992
Language	en - English
Page Count	18
Revision Level
Supercedes
Committee	Transformers

Publish Date	Document Id	Type	View
March 11, 2014	638-2013	Revision
June 22, 1992	638-1992	Revision

SDO	Document	Title
IEEE	IEEE 638	IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations
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IEEE 638-1992

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

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IEEE 638-1992

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

Document Information

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Revision Details

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