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IEC 60034-18-31

IEC 60034-18-31:2012
Rotating electrical machines - Part 18-31: Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
IEC 60034-18-31:2012 describes thermal endurance test procedures for classification of insulation systems used in a.c. or d.c. rotating electrical machines with indirect cooling and form-wound windings. These test procedures are intended to compare the thermal endurance performance of the mainwall insulation between conductor(s) and ground and, where required by the design of the coil or bar, the insulation between the turns. The main technical changes with regard to the previous edition include:
- Definition of the test method and sub-cycles required to establish a consistent standardized platform for thermal ageing of insulation systems for form-wound windings.
- Recommendations for establishing a thermal life curve based on confidence intervals.
- Comparison of candidate and reference system performance for specific requirements of thermal class, within feasible limits.
Keywords: rotating machinery, insulation systems
BASE PUBLICATION

Technical committee

TC 2 Rotating machinery
Publication typeInternational Standard
Publication date2012-06-25
Edition2.0
ICS

29.160.01

Stability date2025
ISBN number9782832201596
Pages54
File size1.10 MB
EditionDatePublicationEditionStatus

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