THERMAL EVALUATION OF UNSEALED OR SEALED INSULATION SYSTEMS FOR AC ELECTRIC MACHINERY EMPLOYING FORM-WOUND PRE-INSULATED STATOR COILS FOR MACHINES RATED 15000 V AND BELOW
Institute of Electrical & Electronics Engineers
1 Overview
1.1 Scope
1.2 Purpose
1.3 General conditions
1.4 Methods of evaluation
2 Normative references
3 Definitions
4 Test models
4.1 General
4.2 Construction of test models
5 Text exposure
5.1 General
5.2 Temperature exposure
5.3 Mechanical stress exposure
5.4 Moisture exposure by humidification
5.5 Voltage exposure after humidification
5.6 Water immersion test (for sealed systems only)
5.7 Failure criteria
6 Procedures for reporting and analyzing results
6.1 Data
6.2 Analysis
6.3 Comparison
6.4 Extrapolation
6.5 Nonlinear or dissimilar curves
6.6 System identification
Annex A (informative) Photos of various formette frames
Annex B (informative) Bibliography
Describes test procedures for comparing two or more unsealed or sealed insulation systems in accordance with their expected life at rated temperature.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
