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IEEE 259 1999

$52.54

IEEE Standard Test Procedure for Evaluation of Systems of Insulation for Dry-Type Specialty and General-Purpose Transformers

Published By Publication Date Number of Pages
IEEE 1999 18
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Revision Standard – Active. A uniform method by which the thermal endurance of electrical insulation systems for dry-type specialty and general-purpose transformers can be compared is established. Covered are insulation systems intended for use in the types of transformers described in NEMA ST 1-1988 and NEMA ST 20-1992.

PDF Catalog

PDF Pages PDF Title
1 Title Page
3 Introduction
Participants
5 CONTENTS
7 1. Overview
1.1 Scope
8 2. References
3. Insulation test specimens
9 4. Test procedures
4.1 Initial screening tests
11 4.2 Temperature aging
12 4.3 Mechanical stress
4.4 Thermal shock
13 4.5 Moisture exposure
4.6 Dielectric proof test
14 5. Interpretation of data
5.1 Criteria of failure
15 5.2 Method of determining average life
5.3 Extrapolation of data
5.4 Application of results
5.5 Report of results
17 Annex A—Bibliography
IEEE 259 1999
$52.54