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IEEE 259-1994

$72.58

IEEE Standard Test Procedure for Evaluation of Systems of Insulation for Specialty Transformers

Published By Publication Date Number of Pages
IEEE 1994 16
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Revision Standard – Superseded. 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. These insulation systems are 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
6 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
13 4.4 Thermal shock
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
16 6. Bibliography
IEEE 259-1994
$72.58