IEEE 1776 : 2008
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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
10-17-2023
01-01-2008
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
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