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IEEE 638-2013

$31.96

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

Published By Publication Date Number of Pages
IEEE 2013 25
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Revision Standard – Active. 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.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 638™-2013 front cover
3 Title page
5 Important Notices and Disclaimers Concerning IEEE Standards Documents
8 Participants
10 Introduction
11 Contents
13 IMPORTANT NOTICE
1. Overview
1.1 Scope
1.2 Purpose
14 2. Normative references
15 3. Definitions
4. Transformer specifications
4.1 Specification information
4.2 Service conditions
4.3 Equipment performance requirements
4.4 Seismic requirements
16 4.5 Electrical, mechanical, and structural interfaces
4.6 Industry codes and standards
4.7 Impedance
4.8 Nonsinusoidal load currents
4.9 Shipping, storage, and handling requirements
4.10 Margin
17 5. Approaches to transformer qualification
5.1 Acceptable approaches
5.2 Testing
5.3 Thermal life qualification
5.4 Thermal analysis calculation
18 5.5 Operating experience
5.6 Qualification by analysis and test
6. Design qualification procedure
6.1 General
19 6.2 Test unit
6.3 Qualification tests
20 6.4 Seismic qualification procedure
6.5 Pass-fail criteria
7. Documentation
7.1 Design qualification
21 7.2 Seismic qualification
7.3 Maintenance
22 Annex A (informative) Consideration of the state-of-the-art of transformer insulation thermalaging techniques
25 Annex B (informative) Bibliography
IEEE 638-2013
$31.96