IEEE 638-1992

$59.04

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

Published By	Publication Date	Number of Pages
IEEE	1992

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Category: IEEE

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Description

New IEEE Standard – Superseded.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.

PDF Catalog

PDF Pages	PDF Title
1	Title Page
3	Introduction Participants
6	CONTENTS
7	1. Scope 2. Purpose 3. References
8	4. Definitions
9	5. Transformer Specifications 5.1 Service Conditions 5.2 Equipment Performance Requirements 5.3 Seismic Requirements 5.4 Electrical, Mechanical, and Structural Interfaces 5.5 Industry Codes and Standards 5.6 Impedance 5.7 Shipping, Storage, and/or Handling Requirements 5.8 Margin
10	6. Approaches to Transformer Qualification 6.1 Testing 6.2 Thermal Life Qualification 6.3 Thermal Analysis and Calculation 6.4 Operating Experience
11	6.5 Qualification by Analysis and Test 7. Design Qualification Procedure 7.1 General 7.2 Test Unit
12	7.3 Qualification Tests 7.4 Seismic Qualification Procedure 7.5 Pass-Fail Criteria
13	8. Documentation 8.1 Design Qualification 8.2 Seismic Qualification 8.3 Maintenance
14	Annex A—Consideration of the State-of-the-Art Transformer Insulation Thermal Aging Techniques