Table of Contents

1 Overview
  1.1 Scope
  1.2 Purpose
2 Normative references
3 General considerations
  3.1 Factors causing deterioration
  3.2 Functional tests
  3.3 Accelerated aging
  3.4 Environmental influences
  3.5 Test samples
  3.6 Interpretation of results
  3.7 Testing safety
4 Voltage endurance
  4.1 Time dependence of electric strength
  4.2 Preparation of test specimens
  4.3 Application of voltage
  4.4 Test results
5 Thermal endurance
  5.1 Test exposure
  5.2 Electrical and physical measurements
6 Thermomechanical endurance
  6.1 Test requirements
  6.2 Variables that affect insulation degradation
  6.3 Test arrangement
  6.4 Test specimens
  6.5 Heating and cooling
  6.6 Duration of the cycle
  6.7 Number of cycles
  6.8 Thermal expansion
  6.9 Electrical properties
  6.10 End point criteria
  6.11 Evaluation
7 Electromechanical endurance
  7.1 Test conditions
  7.2 Impact (sudden short circuit)
  7.3 Vibration
  7.4 Interpretation of results
Annex A (informative) Bibliography
Annex B (informative) Glossary
Annex C (normative) Step-by-step method of voltage application

Abstract

Specifies a procedure that may be used to evaluate and compare insulation systems used, or proposed for use, in large ac electric machines.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT 434 : D10 2006